Overview Material TFS-41400004 A356-T6 Combustion Chamber Intake Port Exhaust Port Sizes 122cc 340cc 137cc 2.25 in. Intake, Springs 1.530 in. Dual Springs for Mechanical Flat Tappet and Hydraulic Locks Retainers Rocker Studs Guideplates OEM Accessory Holes Quantity TFS-41400005 A356-T6 122cc 340cc 137cc 2.25 in. Intake, 1.550 in. Dual Springs for Mechanical TFS-41400007 A356-T6 122cc 360cc 137cc 2.30 in. Intake, 1.530 in. Dual Springs for Mechanical Flat Tappet and Hydraulic TFS-41400008 A356-T6 122cc 360cc 137cc 2.30 in. Intake, 1.550 in. Dual Springs for Mechanical * Trick Flow R-Series cylinder heads for big block Chevy are now available with strong, lightweight titanium valve spring retainers. Replace the 0 with a T in the 5th character of the part number for heads with titanium retainers. For example TFS-41400007 becomes TFS-4140T007 for titanium upgrade. Included Parts Two assembled cylinder heads Two packs of 17 head bolt washers (TFS-31400417) Two packs of four 3/8 in. guideplates (TFS-41400623-4) One pack of eight rocker arm studs for intake rockers (TFS-41400613) One pack of eight rocker arm studs for exhaust rockers (TFS-41400614) One specification/recommended components sheet One instruction packet (TFS-DP-12)
Technical Specs Material: A356-T6 aluminum Combustion Chamber : 122cc Intake Port : 340cc or 360cc Exhaust Port : 137cc s: CNC profiled, one piece, non-magnetic stainless steel Intake : 2.25 in. or 2.30 in. head diameter, 11/32 in. stem diameter, 5.471 in. OAL (overall length) Exhaust : 1.880 in. head diameter, 11/32 in. stem diameter, 5.425 in. OAL Guide Type: Bronze alloy,.500 in. O.D. Seals: Viton Seats: Interlocking ductile iron Springs: For Mechanical Flat Tappet and Hydraulic 1.530 in. O.D. double with damper 138 lbs. @ 1.950 in. installed height 430 lbs. @ 1.250 in. 420 lbs. per inch spring rate.680 in. max valve lift Springs: For Mechanical : 1.560 in. O.D. double with damper 240 lbs. @ 2.000 in. installed height 600 lbs. @ 1.280 in. 500 lbs. per inch spring rate.700 in. max valve lift Locks: 10 degree machined steel with recess for lash caps Retainers: Chromemoly steel or Titanium Rocker Studs: ARP 7/16 in., included with all assembled heads Guideplates: hardened pushrods, included with all heads OEM Accessory Holes: Spark Plugs: Street: Autolite-3922 or equivalent 3/4 in. reach, 5/8 in. hex gasket seat plug Race: Champion C59C or equivalent. Always adjust heat range for your specific application NOTE: The use of a valvetrain combination that exceeds the maximum valve lift will void the warranty. Piston-to-valve, piston-to-head, and piston-to-spark plug clearances must be checked in all cases. Recommended Components: Head Gasket: Fel-Pro 1017 NOTE: Fel-Pro 1027 head gaskets are not recommended due to their smaller chamber openings. Intake Gasket: Mr. Gasket 121 Exhaust Gasket: Fel-Pro 1412 Head Bolts: ARP-235-3707 (12 pt.) Head Studs: ARP-235-4703 (12 pt. nuts with undercut studs) Rocker Arms: Crane Gold or eqivalent For more information contact: Trick Flow Specialties 1248 Southeast Avenue Tallmadge, OH 44278 Sales & Tech: (330) 630-1555 Fax: (330) 630-5565
Replacement Parts Replacement Assembled Heads: Assembled Heads, Single TFS-41410004 TFS-41410005 TFS-41410007 TFS-41410008 Bare Castings with Seats and Guides TFS-4141B340 TFS-4141B360 BBC head, 340cc, each BBC head, 360cc, each Replacement Components: TFS-41400210 2.25" Int. valve 1 TFS-41400211 2.300" Int. valve 1 TFS-41400212 1.880" Exh. valve 1 TFS-41400423 1.550" plus.050 retainers 16 TFS-41400623 3/8 guideplates 8 TFS-41400251 bronze int. guide 1 TFS-41400252 bronze exh. guide 1 TFS-31400417 7/16" head bolt washers 17 TFS-32400413 1.560" hyd / flat springs 16 TFS-41400414 1.550" roller springs 16 TFS-41400271 ductile iron int. seat 1 TFS-41400272 ductile iron exh. seat 1 TFS-51400454 viton seals 16 TFS-21400440 1.550" spring i.d. locators 16 TFS-52400444 11/32 machined 10 degree locks 16 TFS-41400613 bbc int. rocker studs 8 TFS-41400614 bbc exh. rocker studs 8 Warranty Trick Flow Specialties warrants its assembled street high performance cylinder heads to be free from defects in both materials and workmanship for a period of one year from date of purchase. All other products, including race cylinder heads, are warranted for a period of 90 days from date of purchase. This warranty covers manufacturing defects only. Damage due to negligence or improper installation will not be covered. Alterations made to the product such as porting, milling, welding, or other custom modifications are done at the owner's sole risk and will void the warranty. Trick Flow's sole obligation shall be to repair or replace any product that is defective under this warranty. This warranty covers only the product itself and not the cost of installation or removal. Customers who believe they have a defective product should either return it to the dealer from whom it was purchased or call Trick Flow at 1-330-630-1555 with a complete description of the problem. After obtaining a return authorization number, the product must be returned freight prepaid. If a thorough inspection by the factory indicates defects in workmanship or materials, our sole obligation shall be to repair or replace the product.