Table of Contents. Tri - Y Merge Collector 8-9. Collector Retainers 16 Bellows 17. Mandrel Bends Header Flanges 24-35

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1 Table of Contents Merge Collectors How to order 4 Style Options 5 MC Merge Collector 6 DSMC Double Slip Merge Collector 7 Tri - Y Merge Collector 8-9 WMC Weld-on Merge Collector 10 YC Y - Collector & X - Pipes 1 1 FC/SFC Formed Collector CT Collector Transitions Collector Retainers 16 Bellows 17 Tubing ZK Zoomie Kits 18 Mandrel Bends ST Straight Tubing TE Tube Extentions 23 CNC Machined Flanges Header Flanges VBC/SF V-Band Clamps & Sealing Flanges 36 F Exhaust Flanges TF Turbo Flanges Accessories ARP Header Bolt Kits 42 Weld-on Bungs 43 T-Bolt Clamps 44 T-Shirts 44 Fabrication Supplies 45 Fabrication & Manufacturing Vehicle Specification Form 48 Terms & Conditions 49

2 Header & Exhaust Systems Getting Everthing You Can (Out Of It) The exhaust systems role in increasing engine performance centers around improving volumetric efficiency. Volumetric efficiency refers to the ability of an engine to intake and expel gases (i.e.: air/fuel and exhaust gas), in relation to the actual pumping volume of the engine. Free flowing intake and exhaust systems help an engine to achieve this. Achieving greater than 100% VE is done in part by optimizing exhaust gas scavenging to draw out exhaust and bring in air fuel mixture during valve overlap. As the piston reaches the top of the exhaust stroke, it dwells as the crankshaft sweeps across the top of its stroke. This is where valve overlap occurs. Before the piston is at TDC, the intake valve begins to open. The trick is to design the exhaust system so that the exhaust pulse (pressure wave) leaves behind a pressure drop or vacuum to take advantage of the valve overlap. If successful the combustion chamber will exchange residual exhaust gases for a fresh air/fuel mixture before the piston has any real effect on the intake charge. To design a successful exhaust system or tuned header, the tube size and length are selected based on a list of engine specifications and application characteristics. The tube size controls the speed of the exhaust pulse, too big and the velocity (energy) is lost. The tube length is all about timing the pulse to synchronize with the cam in a specific RPM range. At the collector, the timing of the pulses is crucial to scavenging. Imagine a four lane freeway on ramp merging into one lane. If you get the timing and speed right, the pulses draft each other like stock cars at Daytona, increasing their speed. This is where the Merge Collector comes in. It makes that transition from primary tube to collector as smooth as possible. This reduction in turbulence helps maintain velocity through the collector, thus increasing the scavenging power of the header system. If you are not sure of your header and collector design please fill out the vehicle spec sheet on page 48 and send it to us. Merge Collectors Cut-A-Way Views Merge Collectors have been used for many years in F-1 and Indy cars. The technology trickled down into almost all forms of professional racing. Today they have become common place. In competition, merge collectors are used wherever rule books allow. On pages 3 through 11 you will find information on merge collectors to help you decide what type is for you. If you need more help give us a call or fill out the vehicle spec sheet (pg. 48) and fax / it to us fax

3 WMC Merge Collectors Configurations 25 VBK300S (V-Band Clamp) MC TF (T04 Turbo Flange) MC CT S16 MC CT S16 MC CT S16 MC ST300S16 (Straight Tubing) 12 Convergent Angle 3 Divergent Angle MC Weld Fee Weld Fee MEG62040-S OD on inlet end) Minor Diameter ( Throat ) Major Diameter CT S18 (Used as a reverse cone) 12 & 15 degree convergent angles offer the greatest performance gains. 20 & 25 degree convergent angles are used where space constraints are the primary concern. Call for recommendations on transitions fax

4 Style Options MC DSMC WMC FMC BMC Merge Collectors How To Order Tube O.D. Material Type For stainless steel use -304 or -321 For mild steel leave blank MC Minor Diameter (Throat Size ) Specify throat size when you place your order Convergent Angle 16ga. 18ga. 20ga. (.065 ) (.049 ) (.035 ) # of Tubes Gauge (Wall Thickness) Merge Inlet Tube Size 2 into 1 3 into 1 4 into 1 5 into 1 6 into 1 8 into MCxx125-2 MCxx125-3 MCxx125-4 S/O S/O S/O MCxx138-2 MCxx138-3 MCxx138-4 S/O S/O S/O MCxx150-2 MCxx150-3 MCxx150-4 MCxx150-5 MCxx150-6 MCxx MCxx163-2 MCxx163-3 MCxx163-4 MCxx163-5 MCxx163-6 MCxx MCxx175-2 MCxx175-3 MCxx175-4 MCxx175-5 MCxx175-6 MCxx MCxx188-2 MCxx188-3 MCxx188-4 MCxx188-5 MCxx188-6 MCxx MCxx200-2 MCxx200-3 MCxx200-4 MCxx200-5 MCxx200-6 MCxx MCxx213-2 MCxx213-3 MCxx213-4 MCxx213-5 MCxx213-6 MCxx MCxx225-2 MCxx225-3 MCxx225-4 MCxx225-5 MCxx225-6 MCxx MCxx238-2 MCxx238-3 MCxx238-4 S/O S/O S/O MCxx250-2 MCxx250-3 MCxx250-4 S/O S/O S/O MCxx263-2 S/O MCxx263-4 S/O S/O S/O MCxx275-2 S/O MCxx275-4 S/O S/O S/O MCxx300-2 S/O S/O S/O S/O S/O MCxx350-2 S/O S/O S/O S/O S/O Ordering Options Part Only 6 way MC With Transition 4 Way WMC w/ 7 degree transition Finished Assembly (flanges, tabs, or bungs) 2 Way DSMC s w/transitions & T04 tangental flange fax

5 Merge Collectors Style Options (MC) Merge Collector The traditional Merge Collector can be used as a removable piece or welded. Prebent tubes are machine cut and hand fit to form a pyramid inside each collector for proper airflow management. (DSMC) Double Slip Merge Collector DSMC s are used primarily in turbo applications where the benefits of a true merge are needed and a removable collector offers the best design solution. The double slip receivers provide the extra seal necessary to prevent the loss of exhaust manifold pressure. (WMC) Weld-on Merge Collector WMC s are used primarily in turbo applications where space constraints are the biggest concern. The WMC s form is like that of a formed collector but, is constructed like a merge collector to provide the material strength necessary to withstand the stresses of a turbo application. WMC s also allow for the use of a smaller outlet size than is possible with a formed collector. (FMC) Flat Merge Collector This FMC style collector allows for maximum ground clearance. Applications include street rods, transverse mounted inline 4 cylinders, and flat opposed 4 or 6 cylinders. (BMC) Bent Merge Collector Building a tuned header in a confined space can present some real challenges. The BMC is designed to help solve some of those problems that can arise when building a Tri-Y system. Rather than compromise tube length, this part allows you place the primary or secondary 2 way collector while changing direction fax

6 (MC) Merge Collectors Merge Collectors are a common choice of professional engine builders and race teams. Prebent tubes are machine cut and hand fit to form a pyramid inside each collector. Merge Collectors are TIG welded (Purge style) to ensure professional performance and appearance. SPD Merge Collectors are cleaned and polished inside for maximum flow. Collectors shown w/ transition, straight tubing, wing tabs, and O2 bungs Available Options 12, 15, 20, 25 convergent angle 1.25 to 3.50 tube size 2 way - 8 way 304, 321, ,.049,(.035 SST only) wall thickness See page 2 for part numbering system When Ordering Specify Throat Size (Minor Diameter) Outlet Options (Flanges, Transition, Tubing) Custom Finish Work (Tabs, Bungs, Wastegate Tube) fax

7 Double Slip Merge Collectors (DSMC) Double Slip Merge Collectors are used primarily in turbo applications were the benefits of a true merge are required and a removable collector offers the best design solution. The double slip receivers provide the extra seal necessary to prevent the loss of exhaust manifold pressure. The slip connection allows the system to expand and contract under the extreme temperature swings seen in turbo headers, reducing the potential for cracking. Increased spacing to accomodate external slip External slip tubes are included in the price of the collector. Use collector as a jig when welding external slips to your header tubes Available Options 12, 15, 20, 25 convergent angle 1.25 to 2.50 (2 ways up to 3.50 ) tube size 2 way - 8 way 304, 321, ,.049,(.035 SST only) wall thickness See page 2 for part numbering system When Ordering Specify Throat Size (Minor Diameter) Outlet Options (Flanges, Transition, Tubing) Custom Finish Work (Tabs, Bungs, Wastegate Tube) fax

8 Tri-Y Slip Together Available Options 12, 15, 20, 25 convergent angle 1.25 and up tube size 304, 321, ,.049,(.035 SST only) wall thickness Tri-Y collectors are steadily increasing in popularity and being used in applications where 4 into 1 collectors were previously the only way to go. The attraction is a broader, less peaky power band. Most are used in applications with wide RPM swings and part throttle situations, such as street cars, road racing, late model stocks, and off-road racing. The Tri-Y stereotype of only low end torque applications continues to be erased as Tri-Y s break into new arenas like the NHRA and IHRA. Adjustablity is another selling point for the design. You can change primary or secondary collector sizes, lengths and tube sizes between the Y s or even convert back to 4 into 1 to alter the engines power band. This allows you to keep up with ever changing track and/or weather conditions. See page 2 for part numbering system When Ordering Specify Throat Size (Minor Diameter) Outlet Options (Flanges, Transition, Tubing) Custom Finish Work (Tabs, Bungs, Flanges) Primary Merge Collector Transition or Straight Tubing Secondary Merge Collector Transition or Straight Tubing Optional Straight Tubing Weld Fee Minor Diameter Major Diameter Weld Fee Optional Weld Fee Minor Diameter ( Throat ) Major Diameter Primary Secondary fax

9 Tri-Y Welded Available Options 12, 15, 20, 25 convergent angle 1.25 and up tube size 304, 321, ,.049,(.035 SST only) wall thickness See page 2 for part numbering system When Ordering Specify Assembled or Parts Only Throat Size (Minor Diameter) Outlet Options (Flanges, Transition, Tubing) Custom Finish Work (Tabs, Bungs, Flanges) Welded Tri-Y collectors offer the same benefits as the slip-together but without the adjustability. Once you have settled on a design, a welded Tri-Y can be built to the same specifications as a slip together. The advantage is reduction in weight and/or space. For applications such as midgets and motorcycles, these are primary concerns. Primary Merge Collector Secondary Merge Collector Transition or Straight Tubing Weld Fee Weld Fee Minor Diameter Minor Diameter ( Throat ) Major Diameter Primary Secondary fax

10 (WMC) Weld-on Merge Collectors The advantage of a Weld-on Merge Collector is it s size/length compared to a standard Merge Collector (see example below). The WMC s form is like that of a formed collector, but is constructed like a merge collector to provide the material strength necessary to withstand the stresses of a turbo application. It s construction allows for smaller outlet sizes than are possible with a formed collector. 5 Way WMC WMC s are made using a tube one size larger than the primary tubes on your application, allowing them to seat just inside the collector. After the welded assembly is complete, the straight inlet section is reduced and the center pyramid is removed. Available Options 4 Way WMC , 15, 20, 25 convergent angle tube size 2 way - 6 way 304, 321, ,.049,(.035 SST only) wall thickness 3 Way WMC See page 2 for part numbering system When Ordering Specify Throat Size (Minor Diameter) 2 Way WMC Outlet Options (Flanges, Transition, Tubing) Custom Finish Work (Tabs, Bungs, Wastegate Tube) CL Turbo Style WMC s are built with a slightly wider centerline. This leaves a gap between each of the header pipes allowing for expansion. Use shims to maintain this spacing when welding the collected header tubes together. CL Street Style WMC s are designed for header tubes that are collected together with a net fit (no clearance). This makes them easy to assemble. MC vs. WMC MC vs. WMC fax

11 Y-Collectors & X-Pipes (YC) SPD Y-Collectors are made the same as a 25 degree 2- way Merge Collector. The difference is a wider inlet centerline to provide space between the legs. On the table at the bottom of the page you will find the standard inlet center lines Sportsman shown w/ V-Band inlet & outlet (Typical Late Model Stock Car) Double Slip shown w/ CWT100 Wing Tabs (Typical SCCA Trans-Am) When Ordering Specify Ask about custom fabrication as shown above Throat Size (Minor Diameter) Outlet Options (Flanges, Transition, Tubing) Custom Finish Work (Tabs, Bungs, Wastegate Tube) Weld Fee Double Slip Both Legs Swedged Inlet Tube Size (ID) SPD Part # Inlet Center Line Sportsman One Leg Swedged Oulet Sizes (OD) (2) 2.00 YC (2) 2.25 YC (2) 2.50 YC YC YC Straight Inlets No Swedging For stainless steel use -304 or -321 X-Pipe (2) 2.75 YC (2) 3.00 YC (2) 3.50 YC Style For mild steel leave blank 16ga. 18ga. 20ga. Inlet Tube O.D. Material Type Gauge (Optional ) Wall Thickness fax

12 (FC / SFC) Formed Collectors Inlet Tube Size 2-WAY 3-WAY 4-WAY 1.25 FC FC FC FC FC FC FC FC FC FC FC FC FC FC FC FC FC FC FC FC FC FC FC FC FC FC FC FC FC FC FC FC FC FC FC FC FC FC FC FC FC FC FC FC FC FC FC FC FC FC Formed collectors are an economical way to collect header primary tubes together. This weld-on style is the most common of all header collectors still used today. Several Formed Collectors are available in 304 stainless (Please inquire) Style FC SFC # of Tubes Inlet Tube O.D. Outlet Size Material Type Gauge For mild steel leave blank For stainless steel use S Limited availability 16ga. 18ga. (.065 ) (.049 ) fax

13 Formed Collectors (FC / SFC) (FC2) 2-Way Formed Collector (FC) Stars Desiged to seal the center of your primary tubes when using a Weld-on style formed collector (FC3) 3-Way Formed Collector Inlet Tube Size 4-WAY FCS FCS FCS FCS FCS200 (FC4) 4-Way Formed Collector FCS FCS FCS FCS FCS263 (SFC) Slip-on Formed Collector Swedged to fit advertised tube size (SFC) Stars Desiged for use with the wider centerline of the swedged slips Inlet Tube Size 4-WAY FCS SPD Slip-on formed collectors utilize swedged slips (shown left) to provide a positive stop and seat for your primary tubes to seal against FCS fax

14 Minor Tube OD degree taper OAL (CT) Collector Transitions 7-degree taper 13-degree taper Major Tube OD CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT MEG CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT MEG MEG CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT MEG CT CT CT CT CT CT CT CT CT CT CT CT CT Add a S for 304 stainless steel example: (CT S16) 13 CT CT CT MEG62040 inlet 3.00 O.D. (MEG) Megaphones Are rolled and seam welded 18ga mild or 304 stainless steel These parts can be cut to provide the desired inlet and outlet O.D. for your specific application MEG62040-S fax

15 T100 CT350-T T04 CT300-T T03 CT225-T Turbo Transitions Are available: 16 ga. only 304 SST 321 SST 1008 mild steel Turbo transitions are made to fit SPD turbo flanges (see page 40 for port dimensions) Collector Transitions (CT) Minor Tube O.D degree taper 7-degree taper 13-degree taper CT225-T03( )16 Major Tube OD Rectangle CT CT CT CT CT CT CT CT CT238-T03( )16 Rectangle CT CT CT CT CT CT CT CT CT250-T03( )16 CT250-T04( )16 Rectangle Rectangle CT CT CT CT CT CT CT CT CT CT MEG CT CT CT CT CT CT CT CT CT CT CT275-T04( )16 Rectangle CT CT CT CT CT CT CT CT CT300-T04( )16 CT300-T100( )16 Rectangle Rectangle use below CT CT CT CT CT CT CT CT CT MEG CT325-T100( )16 Rectangle CT CT CT CT CT CT CT use below CT CT CT CT CT CT CT CT CT use below CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT CT fax

16 Collector Retainers (CWTK) Wing Tab Kits Part # CWTK100 Description (2) CWT100, (1) bolt, (2) AN washers, (1) lock nut CWTK100S (2) CWT100S, (1) bolt, (2) AN washers, (1) lock nut Shown as one kit Individual Parts CWT100 CWT100S AN3-24A Collector Wing Tab Collector Wing Tab (304 Stainless) x 2.50 UHL Bolt AN3-30A x 3.00 UHL Bolt AN #10 AN Washer AN Mechanical Lock Nut (STK) Spring Tab Kits Part # STK100 Description (2) ST100 & (1) CS300 STK100S (2) ST100S & (1) CS300 Shown as one kit Individual Parts ST100 ST100S CS300 Spring Tab Spring Tab (304 stainless) Collector Spring (3.00 oal) (ABK) A & B Tab Kits Part # ABK100 ABK100S Quantity A100 & B100 w/1/4-20 bolt & lock nut A100S & B100S w/1/4-20 bolt & lock nut Individual Parts A100 A100S B100 A Tab A Tab - Stainless B Tab Shown as one kit B100S B Tab - Stainless fax

17 Bellows Tube Size OD SPD Part # Overall Length 1.75 SB SB SB Standard Bellows (SB) SB SB SB SB Other sizes available by special order with internal flex liner Features & Recommended Usage Standard bellows are typically used somewhere between the header collector and the muffler to absorb axial movement (engine and chassis flex). Not recommended for use in pre-turbo plumbing. Tube Size OD SPD Part # Overall Length 2.50 SJSB SJSB SJSB Slip Joint Bellows (SJSB) Other sizes available by special order Features & Recommended Usage Slip Joint bellows are designed for use in high temperature and high pressure environments. 321 SST internal slip joint provides a smooth surface for directional flow. 625 inconel accordion style bellows absorb linear growth caused by heat expansion. Limited angular flex. Not made for axial movement fax

18 (ZK) Zoomie Kits Top Fuel (ZKTF) Top Alcohol Dragster Kit Includes: (8) 125 degree bends (A) Leg = on a 6.0 clr. (B) Leg = 6 Available Options on a 6.0 clr 304 or wall thickness Funny Car (ZKFC) Kit Includes: (2) 79 degree bends (2) 82 degree bends (2) 85 degree bends (2) 88 degree bends (A) Leg = 4 (B) Leg = 26 Cover Tubes Available: 3 x.049 MS or SST Available Options 2.00 on a 3.0 clr 2.25 on a 3.5 clr 2.50 on a 4.0 clr 304 or wall thickness Puller Truck (ZKPT) Kit Includes: (8) 125 degree bends (A) Leg = 4 (B) Leg = 18 Available Options 125 on a 6.0 clr on a 6.0 clr 304 or wall thickness fax

19 Mandrel Bends How To Order Leg B Leg A Leg B Leg A Radius Tangent Radius Centerline Centerline U bend 180 J bend Leg B Radius Tangent Radius 2.0 Centerline 4.0 Centerline Leg B Leg A 90 Bend Leg A 45 Bend Tube O.D. Material Type For stainless steel use -304 or -321 For mild steel leave blank Bend Style Centerline Radius Centerline Radius 16ga. 18ga. 20ga. Gauge Wall Thickness fax

20 Tube Size (OD) Center Line Radius Part # U-bend Part # J-bend Part # 90-bend 2.00 ******** Available in 2007 ******** 2.00 ******** Available in 2007 ******** Part # 45-bend ******** Available in 2007 ******** Mandrel Bends * ******** Available in 2007 ******** U bends, 45 s, and 90 s Denotes 6 leg lengths J bends Denotes 6 & 12 leg lengths U bends, 45 s, and 90 s Denotes 8 leg lengths J bends Denotes 8 & 15 leg lengths P/N * is bent 150 degrees fax

21 Mandrel Bends U bends, 45 s, and 90 s Denotes 6 leg lengths J bends Denotes 6 & 12 leg lengths U bends, 45 s, and 90 s Denotes 8 leg lengths J bends Denotes 8 & 15 leg lengths Denotes Varied leg lengths most less than 4.00 Tube Size (OD) Center Line Radius Part # U-bend Part # J-bend Part # 90-bend Part # 45-bend ******** Available in 2007 ******** ******** Available in 2007 ******** ******** Available in 2007 ******** ******** Available in 2007 ******** ******** Available in 2007 ******** fax

22 Tube Size OD SPD Part # 1.00 (ST) Straight Tubing Wall Thickness Materials Available ST ST , 304, 321 ST , ST ST , 304, 321 ST , 304 ST , 321 ST , 304, 321 ST , 304, ST , 321 ST , 304, 321 ST , 304 ST , 321 ST , 304, 321 ST , 304, 321, 6061 ST , 321 ST , 304, 321 ST , 304, 321 ST , 321 ST , 304, 321 ST , 304, 321, 6061 ST , (321 Special Order) ST , 304, 321 ST , 304, 321 ST , 321 ST , 304, 321 ST , 304, 321, 6061 ST , 321 ST , 304, 321 ST , 304 ST , 321 ST , 304, 321 ST , 304, 321, 6061 ST ST , 304, 321 ST , 304 ST , 321 ST , 304, 321 ST , 304, 321, fax

23 Tube Size OD SPD Part # Straight Tubing (ST) Wall Thickness Materials Available ST ST , 304 ST , ST , 304, 321 ST , 304 ST ST , 304, 321 ST , 304, 321, 6061 ST , 304 ST ST , 321 ST , 304 ST ST ST , 304 ST , 304 ST , 304 Tube Extentions (TE) Swedge Depth Extension Length Tube extensions are available in most tube sizes and lengths. TE 200 S16-10 Style Tube Size Add S for Gauge Extention Length TE 304 Stainless Steel Mild Steel: Leave Blank fax

24 Header Flanges See page 50 for How to Make a pencil transfer ( Rubbing ) SBC Small Block Chevrolet 4.3 V6 C600xx OEM C604xx 18-deg V6 C Square (SAP) C Square C Square (SAP) C Square Bolt Spacing 2.22 Bolt Spacing 2.48 OEM Bolt Pattern Where individual flanges are shown Add E & C to the part number C800xx Gen I Small Block C803xx Gen II LT1-ZZ3-ZZ4 C Round C D (SAP) C Oval C D (SAP) C Square (SAP) C Square (SAP) C Square (SAP) Outer Bolt Spacing 2.22 Outer Bolt Spacing 2.22 Inner Bolt Spacing 3.94 Inner Bolt Spacing 3.94 C835 xx Gen II Fastburn GM p/n C D (SAP) C D (SAP) Add C & E for individual flanges (C800xx-C) (C800xx-E) Add C & E for individual flanges (C803xx-C) (C803xx-E) C811xx Gen III LS-1/LS-6 C Round C Round C Round C Oval C Oval C Oval C805xx Gen III LS-7 C Round C Round C D (SAP) C D (SAP) C804xx GM Perf 18-deg C Square Oval C Square Oval C80444RP 1.88 Raised Port C80445RP 2.00 Raised Port Outer Bolt Spacing 2.48 Inner Bolt Spacing 4.62 C806xx SB2/SB2.2 C Round C Round C Square Oval C Square Oval C Square Oval fax

25 Small Block Chevrolet SBC Standard 7 Bolt Pattern Photo Not Available C815xx Brodix - 8 & -10 C Square C Square Shown as one kit C829xx Pontiac 867 Chapman-10X / All Pro 227 (Can be used with AC80120 Adapters) C Square C Square C Square C802xx Outer Flange For use with AC80120 Adapters C Round C Round C Round C Round Uses low head allen bolts AC80120 Aluminum Adapter Flanges Spread Port 7 Bolt Pattern The standard 7 bolt pattern is identified by the bottom center bolt spacing C812xx (top bar) C813xx (middle bar) C814xx Chapman -10x SP Brodix 12 & 18 ~ Chapman 18 ~ All Pro 18 C Square C Square C Round C Round C Square C Round C Round C Round C Round C Oval C Oval Same port shape as GM 18 flange C804xx C816xx Brodix 12x12 (top bar) C D (SAP) C D (SAP) C D (SAP) C818xx Brodix -10&11SP (top bar) Weldtech 23SP/AFR220 23SP C Round C Round C Round C D (SAP) C D (SAP) C830xx All Pro 227SP (top bar) C SAP C SAP C SAP Where individual flanges are shown Add L, R, & C to the part number C843xx Dart 15&18 / Olds 14 C Round C Round C Round fax

26 SBC Small Block Chevrolet Hooker 7 Bolt Pattern C834xx Hooker Outer Flange C Round C Round C Round C848xx Dominion 32-Valve Aero Engineering C SAP C SAP 4.25 The Hooker Bolt Pattern is identified by the 4.25 bottom center bolt spacing Alan Johnson C822xx AJPE 18 & 23 C Round C Round C Round Canted / Splayed Valve Also Shown on page 28 as Buick B837xx SBC/ Buick Dart V8 B Square B Square B Square C817xx Brodix BD2000 C Round C Round C Round Add I for individual flanges (C817xx-I) C819xx Brodix BD1010 C81924-I 1.88 Round C81925-I 2.00 Round C820xx GM Splayed Valve C Round C Round C Round Add I for individual flanges (C820xx-I) C842xx Dart Little Chief C Round C Round C Round C (Sqr-Oval) C (Sqr-Oval) C (Sqr-Oval) Add I for individual flanges (C842xx-I) C845xx Assassin 4.5 bore ctr. C SAP C SAP C SAP Add I for individual flanges (C845xx-I) fax

27 Big Block Chevy BBC STD Bore Center (4.84) C850xx OEM Square C Square (SAP) C Square (SAP) C Square (SAP) C851xx Brodix/Dart/OEM Round C Round C Round C Round C Round C Round C857xx Edelbrock GM Alum C D-Port C D-Port C D-Port Add I for individual flanges (C851xx-I) C852xx Dart / Olds-14 C Rect. (canted) C Rect. (canted) C Rect. (canted) C853xx Dart Big Chief C D-Port C D-Port C D-Port C856xx CFE BMF C Square (SAP) C Square (SAP) C Square (SAP) Wide Bore Center (5.00) C854xx 5.00 Bore Center C Round C Round C Round For individual flanges use C851xx- I Brodix/Dart/OEM Round C855xx Sonny s 5.00 Bore Center C Round C Round C Round Port offset left.180 DRCE C826xx Chev BB/Olds DRCE 4.84 Bore Center C Round C Round C Round C Round C828xx Olds DRCE II 4.9 Bore Center C Round C Round C Round C Round fax

28 GM Buick B639xx Buick Stage II V6 B Square B Square B837xx Chev SB / Buick Dart V8 B Square B Square B Square Also Shown on page 26 as SBC Will Not Fit OEM Buick V6 Will Not Fit OEM Buick V8 Pontiac P858xx Edelbrock P D-Port P D-Port P D-Port P D-Port Will Not Fit OEM Pontiac Head C829xx Pontiac 867 Chapman-10X / All Pro 227 (Can be used with AC80120 Adaptors) C Square C Square C Square Oldsmobile O827xx Edelbrock O Square O Square Will Not Fit OEM Olds Head C826xx Chev BB/Olds DRCE 4.84 Bore Center C Round C Round C Round C828xx Chev BB/Olds DRCE II 4.9 Bore Center C Round C Round C Round Cadillac C8160xx Cadillac Northstar C Oval C Oval C Oval C Oval C Round Counterbore C Round Counterbore fax

29 Ford Modular F859xx L SOHC F Round F Round F Round Not for 2004 & up 3 valve heads F872xx L DOHC F Oval F Oval F Oval F Oval 2004 & Up F D-Oval F D-Oval Windsor F8115xx R50 DOHC 5.4L GT / 5.0L Cammer F Oval F Oval Photo Not Available F869xx SVO l/y302 OEM (2.0 bolt cl) F Rectangle (SAP) F Rectangle (SAP) F Rectangle (SAP) Add I for individual flanges (F869xx-I) F8139xx Edelbrock Victor Jr. (2.0 bolt cl) F Rectangle (SAP) F Rectangle (SAP) F Rectangle (SAP) Add I for individual flanges (F8139xx-I) F8140xx Roush Crate Motors (2.0 bolt cl) F (SAP) F (SAP) F873xx Edelbrock #7721 (2.5 bolt cl) F Square F Square F Square F Square F8117xx SVO N352 Cast Iron (2.75 bolt cl) F Square F Square F870xx Brodix Track 1 SVO N/R/S351 Sportsman (2.75 bolt cl) F Square F Square F Square F865xx SVO E351 /Dart 351 (3.0 bolt cl) F Square F Square F Square Add I for individual flanges (F865xx-I) Shown as one kit F868xx SVO J302 Windsor ( formerly Alan Root ) F D-Port F D-Port F871xx TFS R Series & Hi Port F Square F Square F Square Uses low head allen bolts AF Aluminum Adapter Set 6061 Aluminum w/ steel thread inserts Adapter Plate Adapter Plate & Individual Flange F8126xx Ford SB Outer Flange (For SPD Adapters) F Round F Round F Round Add I for individual flanges (F8126xx-I) fax

30 Ford Boss C - 351/400M F874xx Cleveland 2V F Oval F Oval F Oval F875xx Cleveland 4V/ BOSS /400 Midland F Square (SAP) Yates - SVO - Roush F876xx Brodix / Neal BF200 F Round F Round F Round F877xx Brodix / Neal BF301 F Rectangle F Rectangle F Rectangle F863xx SVO C3/C33 Yates NASCAR F Rectangle (SAP) F Rectangle (SAP) F Rectangle (SAP) Add I for individual flanges (F863xx-I) F878xx SVO/Chapman SC-1 F Oval (SAP) F Oval (SAP) F Oval (SAP) Add I for individual flanges (F878xx-I) F879xx SVO/Chapman SC-1R Raised Port F Oval (SAP) F Oval (SAP) F Oval (SAP) Add I for individual flanges (F879xx-I) F8142xx Chapman D35 F Oval (SAP) F Oval (SAP) F Oval (SAP) Add I for individual flanges (F8142xx-I) fax

31 Ford FE F867xx Edelbrock GTA (4 bolt) F Rectangle F Rectangle F Rectangle F866xx Edelbrock (2 bolt) F Rectangle F Rectangle F Rectangle BBF Please inqure about OEM FE F860xx (old style ) F Oval F Oval F861xx (new style EFI 1988-) F Square (SAP) F Square (SAP) F862xx SVO A/B429 Cobra Jet (aluminum head only) F Oval F Oval F Oval Big Block (Racing Heads) F8118xx SVO E460 F Round F Round F Round F Round F8129xx Blue Thunder F SAP F SAP F Round Counter Bore F Round Counter Bore F864xx SVO C/D460 Pro Stock/ Pro Mod F Square (SAP) F Square (SAP) F Square (SAP) Hemi Drag Racing Heads F8124xx SVO A441 / B441 (4.9 Bore Center) F Oval (SAP) F Oval (SAP) F Oval (SAP) F8135xx SVO C441 (5.0 Bore Center) F Oval (SAP) F Oval (SAP) F Oval (SAP) F81364xx SVO C441 Jon Kasse (5.0 Bore Center) F Square (SAP) fax

32 Mopar Small Block M880xx M SAP M SAP M881xx W2 M SAP M SAP M SAP M896xx Brodix B1-BA M Square Oval M Square Oval M891xx W8-Drag M883xx W8 & W9 (NASCAR) M893xx W8 & W9 M Round M Round (.250 Raised Port) M Round M Round M Round M Round M Round M Round Add L, R, & C for individual flanges M Square Oval Add L, R, & C for individual flanges M894xx Brodix B-1 Late Model Spec Head M SAP M SAP M SAP M895xx P5 (Pro Stock Truck) M89544-I 1.88 Oval M88545-I 2.00 Oval Wedge M897xx P7 (NASCAR) M Round M Round M Round M884xx Wedge M Rectangle M Rectangle M Rectangle Add A for Aluminum Head (M884xx-A) M885xx Indy series M Oval M Oval M Oval Early Hemi M886xx M Oval M Oval M Oval M886xxZ 392 Blown M88647Z 2.25 Oval M88648Z 2.38 Oval M88649Z 2.50 Oval M892xx AJPE 392 Style Hemi Nostalgia Top Fuel M M M Round (Angled Up) Round (Angled Up) Round (Angled Up) Both made with tapped holes for blower restraint brackets fax

33 Mopar 426 Hemi & Keith Black Style M888xx 426 OEM (A) Indy Cyl Head (B) M88816A 2.13 Rectangle M88816B 2.13 Rectangle M D-Port M D-Port M D-Port M889xx 426 Dart / Keith Black M Rectangle M Rectangle M D-Port M D-Port M D-Port M SAP (KB) M SAP (KB) M898xx AJPE Top Alcohol (Late Model) M Round (Angled Up) Photo Not Available M8109xx WAR Top Fuel (Walt Austin Racing) M Round (Angled Up) M899xx AJPE Top Fuel (Late Model) M Round (Angled Up) Viper V-10 M10106xx-1 Viper V-10 Gen I M D-Port M10104xx Viper V-10 Gen II M D-Port M D-Port M10102xx Viper V-10 Gen III M D-Port M D-Port Sold as Individual Flanges Only Add I for individual flanges (M10104xx-I) Add I-1 & I-4 for individual flanges Reqires: (6) M101023x-I1 (4) M101023x-I fax

34 Sport Compact BMW Coming Soon Coming Soon M42 / M44 M50 / M52 S50 / S52 Ford / Mazda Coming Soon F41432x Duratec F Round F Round F Round GM Ecotec Chevy, Pontiac, Saab, Saturn C C C SAP oval SAP Counter bore SAP Counter bore Shown w/ counterbore port Honda / Acura H4204xx B Series H Round H Round H Oval H Oval H Oval H4206xx D Series H Oval H Oval H4208xx H-22 H Oval H Oval H Oval H4215xx RSX K Series H Round H Round H Oval H Oval H Oval H4220xx S-2000 F Series H Round H Round H Oval H Oval H Oval Ask about our face relieved lightened versions fax

35 Sport Compact Mitsubishi MIT4264xx 4 cyl. 16V DOHC (4G63-4G61-4G67-4G93-4G94) MIT Oval MIT Oval MIT Oval MIT6263xx 3.0L V6 24V DOHC (6G72-6A12-6A12TT- 6A13) MIT Oval MIT Oval MIT Oval Nissan Coming Soon Coming Soon N62824x L V6. 24V (VQ30DE - VQ35DE) N42815x 2.4L 4 cyl. 12V SOHC (KA24DE / E ) N4280xx 2.0L 4 cyl. 16V DOHC (SR20DE / DET / VE / VET) N N N Oval Oval Oval Subaru Coming Soon Toyota T6245xx 3VZE 3.0L V6 T Oval T Oval T4241xx 2TC/3TC T Rectangle T Rectangle T Rectangle T8240xx Tundra/Lexus V8 T Round T Round T Round fax

36 V - Band Clamps suggested V-Band Clamps have been around for ages. Most notably called Marmon Clamps & Flanges, they are used in a variety of commercial and industrial applications, including turbo exhaust. In recent years their popularity has grown. The high tech form and function of our universal V-band clamps and sealing flanges has made them irresistible to racers and customizers. SPD Sealing Flanges are CNC machined from billet 1020 carbon steel or 304 stainless. The close tolerances, high quality material, and male / female set-up engagement (as shown above), provides a gasketless seal. Tube Size OD V-Band Kit V-Band Clamp Sealing Flange V-Band Assembly 2.00 VBK200 VBC200 SF200 VBA VBK225 VBC225 SF225 VBA VBK250 VBC250 SF250 VBA VBK300 VBC300 SF300 VBA VBK350 VBC350 SF350 VBA VBK400 VBC400 SF400 VBA VBK450 VBC450 SF450 VBA VBK500 VBC500 SF500 VBA500 Includes (1) Clamp (2) Sealing Flanges (1) Clamp (1) Sealing Flange (1) Clamp (2) Sealing Flanges (2) 3 Stub Tubes (2) Weld Fees Add a S for 304 stainless steel example: (VBK300S or SF300S) All clamps are made stainless steel fax

37 Standard Exhaust Flanges Flange Part # Use Gasket P/N Flange ID Bolt Center Material Thickness F150-2CNC EG F163-2CNC EG F175-2CNC EG F188-2CNC EG F200-2CNC EG F213-2CNC F225-2CNC EG F250-2CNC EG F300-2CNC Add a S for 304 stainless steel example: (F300-2SCNC) 2 Bolt SPD 2 bolt flanges are designed to fit the standard flange patterns used in the exhaust industry. 3 Bolt Flange Part # Use Gasket P/N Flange ID Bolt Circle Material Thickness F200-3CNC EG bc F225-3CNC EG bc F250-3CNC EG bc F275-3CNC bc F300-3CNC EG bc F350-3CNC EG bc Add a S for 304 stainless steel example: (F300-3SCNC) 3 Bolt SPD 3 bolt flanges are designed to fit the standard flange patterns used in the exhaust industry. Flange Part # Use Gasket P/N Bolt Circle (bc) Material Thickness F250-3BPCNC EG bc F300-3BPCNC EG bc F350-3BPCNC EG bc Add a S for 304 stainless steel example: (F300-3SBPCNC) Block Off Plate SPD Block Off Plates allow one to cap the exhaust manifold / header outlets and run exhaust back under the car. Used mostly on vintage Hot Rod cut out or log style manifolds fax

38 BMW Specialty Flanges 3.0CSI Outlet Flange F SST M30 Exhaust Flange F Mild Steel F SST Mistubishi (Eclipse) Catalytic Conv. Flange F SST Muffler Flange F SST Porsche Flange Part # Flange ID Bolt Holes Bolt Centers (bc) Material Thickness PO I mm (2.599) PO I mm (2.599) PO I mm (2.599) Fits flat opposed 4 and 6 cyinder engines Add a S for 304 stainless steel example: (PO IS) V W Flange Part # Flange ID Bolt Holes Bolt Centers (bc) Material Thickness F125-2CNC-VW mm 2.283) F138-2CNC-VW mm (2.283) F150-2CNC-VW mm (2.283) Fits most air cooled Volkswagon flat opposed 4 cyinder engines Ducati F163-2CNC-VW mm (2.283) Add a S for 304 stainless steel example: (F125-2SCNC-VW) Harley Davidson 999 Vista DA /B 2.00 Tube F SST Weld-on (not compression style) F SST More to come fax

39 Specialty Fanges Late Model GM typ Gen III Truck (Pass. Side) F Mild Steel F Mild Steel F SST F SST Gen III Truck (Dr. Side) F Mild steel F Mild steel F SST F SST LS-1 Camaro (Driver Side) F Mild Steel F SST LT-1 LS-1 Camaro (Pass. Side) Caprice F Mild Steel F SST Corvette (Includes LT-1 / LT-4 & LS-1 / LS-6 ) F Mild Steel F SST Flange Part # Flange ID Bolt Holes Bolt Centers (bc) Material Thickness F mm(2.283) F mm(2.283) F mm(2.283) Side Pipes 304 Stainless Steel F mm(2.283) F mm(2.283) F mm(2.283) Typically used on Cobras to join side pipes to the header tubes just inside the fender well typ Catalytic Conv. Flange F MildSteel F MildSteel F SST F SST Ford GT Manifold Flange F SST F MS See page 29 for header flanges fax

40 (TF) Turbo Inlet Flanges T25 T25-T28 Rectangle TF Mild Steel TF SST Flanges available with tapped bolt holes T Oval TF Mild Steel TF SST Rectangle TF Mild Steel TF SST Flanges available with tapped bolt holes T x (2) Tangental TF Mild Steel TF SST Oval 3.00 Rectangle 3.00 Lightened TF Mild Steel TF SST TF Mild Steel TF SST TF Mild Steel TF SST Flanges available with tapped bolt holes x (2) Tangental TF Mild Steel TF SST x (2) Tangental TF Mild Steel TF SST T 100 (Large Frame) T04E (Wide Bolt Pattern) TF Mild Steel TF SST Rectangle Lightened TF Mild Steel TF SST TF Mild Steel TF SST Flanges available with tapped bolt holes fax

41 Turbo Flanges (TF) Turbo Outlets HKS 100mm Tube Size 1018 Mild Steel 304 Stainless 2.75 TF TF TF TF T04 Tube Size 1018 Mild Steel 304 Stainless 2.75 TF TF TF TF Wastegates 2.80 Counterbored for 1.50 O.D.tube Deltagate TF Mild Steel TF Mild Steel (Tapped 5/16-18) TF SST TF SST (Tapped 5/16-18) 2.88 Counterbored for 1.75 O.D.tube Racegate TF Mild Steel TF Mild Steel (Tapped 3/8-16) TF SST TF SST (Tapped 3/8-16) Counterbored for O.D.tube Indygate TF Mild Steel TF SST 3.00 ID Sandwich Flange TF Mild Steel (Tapped 3/8-16) TF SST (Tapped 3/8-16) HKS Standard 40mm TF Mild Steel TF SST Greddy 47 mm TF Mild Steel TF SST fax

42 (ARP) Header Bolts Thread Size & Pitch Head UHL 3/8 Hex ARP Black Oxide ARP SST 300 Series Pkg Qty.750 ARP ARP pcs..750 ARP ARP pcs. 3/8-16 5/16-18 LS-1 Stud Kit 3/8 Hex (Drilled) 5/16 Hex 3/8 12pt. 3/8 12pt. (Drilled) 5/16 12pt. 3/8 Hex 3/8 12pt. 8mm. 12pt ARP pcs..750 ARP ARP pcs..875 ARP pcs..750 ARP pcs..875 ARP pcs..750 ARP ARP pcs..750 ARP ARP pcs ARP ARP pcs ARP ARP pcs..750 ARP ARP pcs..750 ARP ARP pcs..750 ARP ARP pcs..875 ARP pcs..750 ARP pcs..875 ARP pcs..750 ARP ARP pcs..750 ARP ARP pcs..750 ARP ARP pcs ARP ARP pcs..750 ARP ARP pcs..750 ARP ARP pcs ARP pcs fax

43 Weld-on Bungs O2 - NPT - Vac-u-pan - A.I.R. - EGT O2 Part # Thread & Pitch Description O mm x 1.5 O-2 Weld-on 18 mm x 1.50 pitch O2-1815S 18mm x 1.5 O-2 Weld-on 304 SST 18mm x 1.50 pitch O2-1815P 18mm x 1.5 O-2 Plug 18 mm x 1.50 pitch O2-1815G 18mm x 1.5 O-2 Gasket 18 mm (copper) NPT Bungs NPT Plugs Part # Thread & Pitch Description NPT125 1/8 NPT Female 1/8 NPT Bung NPT125S 1/8 NPT Female 1/8 NPT Bung 304 SST NPT250 1/4 NPT Female 1/4 NPT Bung NPT250S 1/4 NPT Female 1/4 NPT Bung 304 SST NPT375 3/8 NPT Female 3/8 NPT Bung NPT375S 3/8 NPT Female 3/8 NPT Bung 304 SST NPT500 1/2 NPT Female 1/2 NPT Bung NPT500S 1/2 NPT Female 1/2 NPT Bung 304 SST NPT125SP 1/8 NPT Female 1/8 NPT Plug 304 SST NPT250SP 1/4 NPT Female 1/4 NPT Plug 304 SST NPT Nipples NPT500-M NPT500-MS 1/2 NPT 1/2 NPT Male 1/2 NPTx 6.00 oal coupler (for Vac-u-pan) Male 1/2 NPTx 6.00 oal 304 SST Coupler (for Vac-u-pan) A.I.R. Part # Thread & Pitch GM1/2-18 1/2-18 Description Female fitting to accept OEM GM A.I.R. manifold E.G.T. Part # Thread & Pitch Description TF0125 1/8 NPT Male 1/8 Compression Fitting TF0125S 1/8 NPT Male 1/8 Compression Fitting 304 SST For use with Racepak E.G.T. Probes TF0250 1/4 NPT Male 1/4 Compression Fitting TF0250S 1/4 NPT Male 1/4 Compression Fitting 304 SST fax

44 w T - Bolt Clamps Part # Tube Size ID Size Range TBC TBC TBC163/ TBC TBC TBC TBC TBC TBC TBC TBC TBC TBC TBC TBC TBC TBC TBC TBC T - Shirts Med - Large - XL - 2X $15.00 Available in: White or Ash fax

45 Fabrication Supplies Part # Description For use in welding 304 stainless x.035 x 36 oal Stainless Tig Welding Wire x.045 x 36 oal Stainless Tig Welding Wire x.062 x 36 oal Stainless Tig Welding Wire For use in welding 304 stainless to carbon steel x.035 x 36 oal Stainless Tig Welding Wire x.045 x 36 oal Stainless Tig Welding Wire x.062 x 36 oal Stainless Tig Welding Wire For use in welding 321 or 304 Stainless x.035 x 36 oal Stainless Tig Welding Wire x.045 x 36 oal Stainless Tig Welding Wire x.062 x 36 oal Stainless Tig Welding Wire Solarflux B Flux for welding stainless & alloy steels Used in place of an inert purge inside of parts being welded. 70S S S For TIG welding mild steel 70S-2 mild steel TIG welding rod 70S-2 mild steel TIG welding rod 70S-2 mild steel TIG welding rod SIB03536 SIB06236 For TIG brazing stainless or mild steel Silicone Bronze TIG brazing rod Silicone Bronze TIG brazing rod Part # CW14MA CW14MASR Description 14 x 7/64 x 1 metal cut-off wheel 14 x 7/64 x 1 metal cut-off wheel (stainless) HR10040 Handy roll 40-grit (1 x 50+yds) PSA16 16 cloth PSA disc - 36 grit AFD40 Abrasive flap disc - 40 grit x 4.50 OD fax

46 Proprietary Manufacturing SPD currently manufactures private label components and finished products for a number of companies in the automotive industry. We can work from an existing design or create a prototype for you. Our years of experience in research and development on exhaust products, for the racing industry, are at your disposal to ensure the best results for your finished product. Header Sets We will gladly quote on special headers with a quantity of 25 sets or greater. As with all of our products, we use the best materials available in the manufacturing process. From prototype to finished product, SPD can help with every step. Custom Bends & Tube Bending Our NC and CNC mandrel benders are capable of bending up to 3.5 in most materials. We also have an extensive and growing list of tooling to provide you with the right radius for your project (see mandrel bend table pgs.20-21). To make parts more cost effective and reduce or eliminate set-up time costs, we have a 50 piece minimum per tube size and center line radius. CNC Machining With our Mazak VTC CNC machining center, we produce machined header flanges that meet exacting standards. We stock well over 100 different applications for OEM and aftermarket cylinder heads. Most come in a variety of port shapes and sizes and are available from ⅜ thick 1018 cold rolled steel. If you don t see your application in our catalog, it is possible we can machine them for you. The popularity of some applications may make ideal additions to our product line. In this case, any special programming and set-up fees can be reduced or eliminated. ½ thick and/or 304 stainless are available by special order fax

47 Fabrication Component Fabrication With your technical drawings or simple specifications (depending on the complexity of your part) we can fabricate your custom parts. Parts costs are figured at time and materials. Some parts may require fixtures. Custom Exhaust The primary focus at SPD continues to be supplying fabricators and distributors with quality components. We do still regularly put those parts to use building custom headers and exhaust systems. If you are within towing distance, say miles, please call and talk to us about bringing your race car, boat, motorcycle, or street rod in for some new pipes. Racing Headers SPD produces headers for a number of racing classes with standard engine / chassis configurations. Stock Cars Late models (ASA) / Cup / NCTS Drag Racing Top Fuel / Top Alcohol / Funny Car fax

48 Vehicle Specification Form Name Cust # Company Phone # Fax # Chassis Car Style Weight Sanctioning Body Class Track Engine Mfg. Type C.I.D. Intake Type Runner Length Carb. Heads Model Intake CFM Exhaust CFM Cam Intake Lift Exhaust Lift Lobe Center Intake Dur. Exhaust Dur. Dyno Peak HP Peak RPM RPM Range Low High Transmission Type 1st Gear Stall Tire / Gear Tire Size Gear Ratio fax

49 SPD s Promise SPD has built and maintained a reputation for quality and service. Part of that service is making our comprehensive product line available to ship the same day. We know your business or race team race team depends on fast service. The size and structure of our company allows us to be nimble enough to provide you with off the shelf or custom parts in a timely manner. Order Processing In Stock On orders placed before 2:30pm PST Every effort will be made to ship the same day. Back Orders Processing of orders placed after 2:30pm PST Will vary depending on the order volume of the day. Back orders will be expedited and shipped as soon as time and materials allow. Shipping FedEx Sevices Available Overnight 2 - Day 3 - Day FedEx Freight Standard Overnight Priority Overnight First Overnight 2nd Day Express Saver by 3:00 pm by 10:30 am (Noon if C.O.D.) by 8:30 am Saturday Delivery 350 lbs. min. on out of state shipments by 4:30 pm by 4:30 pm Returns Call for a RGA (Return Goods Authorization) on any returns. No products may be returned for credit after 30 days from receipt of merchandise. ( Please check inspect shipments immediately upon receipt) All returns are subject to a 25% restocking fee ( unless shipped in error ) No returns on Merge Collectors, straight tubing, or custom / special order parts fax

50 Making a pencil transfer ( Rubbing ) Due to the rapidly changing cylinder head industry, you may be asked to send a rubbing of your exhaust ports. Place a sheet of paper covering port(s). Holding it firmly with one hand, use your index finger to rub the edges of the port(s) and bolt holes. Holding the pencil s face flat against the paper, define the ports and bolt pattern. Make sure the transfer is accurate and the paper did not slip during the process. Please include a scale along with your contact information as the fax machine will shrink the image fax