Availability
Cylinder Heads
Pushrod, 3/8 in. Diameter, 8.150 in. Long, 4130 Chromoly, 0.080 in. Wall, For Guideplates, Each
Part Number: TFS-21418150-1
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
Pushrod, 3/8 in. Diameter, 8.450 in. Long, 4130 Chromoly, 0.080 in. Wall, For Guideplates, Each
Part Number: TFS-21418450-1
Estimated Ship Date: May 13, 2026 if ordered today
Estimated Ship Date: May 13, 2026 if ordered today
Pushrod, 3/8 in. Diameter, 8.750 in. Long, 4130 Chromoly, 0.080 in. Wall, For Guideplates, Each
Part Number: TFS-21418750-1
Estimated Ship Date: Apr 8, 2026 if ordered today
Estimated Ship Date: Apr 8, 2026 if ordered today
Cylinder Head, Twisted Wedge® 11R 170, CNC Street Ported, Bare, 53cc CNC Chambers, Small Ford, Each
Part Number: TFS-5251B531-C00
Estimated Ship Date: May 13, 2026 if ordered today
Estimated Ship Date: May 13, 2026 if ordered today
Cylinder Head, Twisted Wedge® 11R 190, Bare, 56cc CNC Chambers, Small Ford, Each
Part Number: TFS-5251B561-C01
Estimated Ship Date: May 13, 2026 if ordered today
Estimated Ship Date: May 13, 2026 if ordered today
Cylinder Head, Twisted Wedge® 11R 170, CNC Street Ported, Bare, 63cc CNC Chambers, Small Ford, Each
Part Number: TFS-5251B631-C00
Estimated Ship Date: May 13, 2026 if ordered today
Estimated Ship Date: May 13, 2026 if ordered today
Cylinder Head, Twisted Wedge® 11R 190, Bare, 66cc CNC Chambers, Small Ford, Each
Part Number: TFS-5251B661-C01
Estimated Ship Date: May 13, 2026 if ordered today
Estimated Ship Date: May 13, 2026 if ordered today
Cylinder Head, Twisted Wedge® 11R 190, Bare, 56cc Chamber, Aluminum, Natural, Ford, 289, 302, 351W, Each
Part Number: TFS-5261B561-C02
Estimated Ship Date: May 13, 2026 if ordered today
Estimated Ship Date: May 13, 2026 if ordered today
Cylinder Head, Twisted Wedge® 11R 227, CNC Competition Ported, Bare, 56cc CNC Chambers, Small Ford, Each
Part Number: TFS-5261B561-C04
Estimated Ship Date: Apr 8, 2026 if ordered today
Estimated Ship Date: Apr 8, 2026 if ordered today
Cylinder Head, Twisted Wedge® 11R 190, Bare, 66cc Chamber, Aluminum, Natural, Ford, 289, 302, 351W, Each
Part Number: TFS-5261B661-C02
Estimated Ship Date: May 13, 2026 if ordered today
Estimated Ship Date: May 13, 2026 if ordered today
Cylinder Head, Twisted Wedge® 11R 227, Bare, 66cc CNC Chambers, Aluminum, Small Ford, 289, 302, 351W, Each
Part Number: TFS-5261B661-C04
Estimated Ship Date: Apr 8, 2026 if ordered today
Estimated Ship Date: Apr 8, 2026 if ordered today
Cylinder Head, Twisted Wedge® 11R 190, CNC Comp Ported, Assy, 66cc CNC Chambers, Ti Retainer, Small Ford, Each
Part Number: TFS-5261T661-C02
Estimated Ship Date: May 13, 2026 if ordered today
Estimated Ship Date: May 13, 2026 if ordered today
Rocker Arm, 1.5 Ratio, 3/8 in. Stud, Narrow Body, Full Roller, Aluminum, Chevy 5.0L/5.7L, Each
Part Number: TFS-31400512-1
Estimated Ship Date: Apr 8, 2026 if ordered today
Estimated Ship Date: Apr 8, 2026 if ordered today
Rocker Arm, 1.6 Ratio, 3/8 in. Stud, Narrow Body, Full Roller, Aluminum, Chevy 5.0L/5.7L, Each
Part Number: TFS-31400513-1
Estimated Ship Date: Apr 8, 2026 if ordered today
Estimated Ship Date: Apr 8, 2026 if ordered today
Rocker Arms, 1.5/1.6 Ratio Split, 7/16 in. Stud, Full Roller, Aluminum, Small Chevy, Set of 16
Part Number: TFS-31400522
Estimated Ship Date: Jun 12, 2026 if ordered today
Estimated Ship Date: Jun 12, 2026 if ordered today
Rocker Arms, 1.6/1.72 Split Ratio, 3/8 in. Stud, Full Roller, Aluminum, Ford, Small Block, Set of 16
Part Number: TFS-51400512
Estimated Ship Date: Apr 8, 2026 if ordered today
Estimated Ship Date: Apr 8, 2026 if ordered today
Rocker Arms, 1.5/1.6 Ratio Split, 7/16 in. Stud, Full Roller, Aluminum, Small Ford and 351W, Set of 16
Part Number: TFS-51400522
Estimated Ship Date: Jun 12, 2026 if ordered today
Estimated Ship Date: Jun 12, 2026 if ordered today
Head Combo, GenX® Top-End, 485 hp/460 ft.-lbs. Torque, Chevy, Small Block, LS1, Kit
Part Number: TFS-K306-485-460
Estimated Ship Date: May 13, 2026 if ordered today
Estimated Ship Date: May 13, 2026 if ordered today
Head Combo, GenX® Top-End, 500 HP/460 ft.-lbs. Torque, Chevy, Small Block, LS1, Kit
Part Number: TFS-K306-500-460
Estimated Ship Date: May 13, 2026 if ordered today
Estimated Ship Date: May 13, 2026 if ordered today
Head Combo, Rockers, Head Bolts, Intake, Camshaft, Pushrods, Timing Set, Valve Covers, Gaskets, Kit
Part Number: TFS-K514-360350B
Estimated Ship Date: May 6, 2026 if ordered today
Estimated Ship Date: May 6, 2026 if ordered today
Pushrod, 3/8 in. Diameter, 9.000 in. Long, 4130 Chromoly, 0.080 in. Wall, For Guideplates, Each
Part Number: TFS-21419000-1
Estimated Ship Date: Jun 12, 2026 if ordered today
Estimated Ship Date: Jun 12, 2026 if ordered today