Availability
Cylinder Heads
Cylinder Head, Super 23® 175, Aluminum, Fast As Cast®, 56cc CNC Combustion Chambers, Bare, Center Bolt Valve Cover, Small Chevy, 262/283/305/350, Each
Part Number: TFS-3031B005
Estimated Ship Date: Jan 14, 2027 if ordered today
Estimated Ship Date: Jan 14, 2027 if ordered today
Valve Spring, PAC Racing, Single, 1.437 in. Outside Diameter, 340 lbs./in. Rate, 1.150 in. Coil Bind, Each
Part Number: TFS-16942-1
Estimated Ship Date: Dec 10, 2026 if ordered today
Estimated Ship Date: Dec 10, 2026 if ordered today
Cylinder Head, GenX® 220, Fast As Cast®, Bare, 64cc CNC Chambers, GM LS1, Each
Part Number: TFS-3061B001
Estimated Ship Date: Jan 14, 2027 if ordered today
Estimated Ship Date: Jan 14, 2027 if ordered today
Cylinder Head, Twisted Wedge® 170, Aluminum, Fast As Cast®, 61cc CNC-Profiled Combustion Chambers, Bare, Ford 289, 302, 351W, Each
Part Number: TFS-5141B010-M61
Estimated Ship Date: Feb 15, 2027 if ordered today
Estimated Ship Date: Feb 15, 2027 if ordered today
Cylinder Head, High Port® 225, CNC Comp Port, Assy, 70cc CNC Chambers, 1.46" Spr, Ti Retain, Small Ford, Each
Part Number: TFS-5171T012-C01
Estimated Ship Date: Jan 14, 2027 if ordered today
Estimated Ship Date: Jan 14, 2027 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: Jan 6, 2027 if ordered today
Estimated Ship Date: Jan 6, 2027 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: Jan 6, 2027 if ordered today
Estimated Ship Date: Jan 6, 2027 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: Dec 10, 2026 if ordered today
Estimated Ship Date: Dec 10, 2026 if ordered today
Pushrod, 3/8 in. Diameter, 8.950 in. Long, 4130 Chromoly, 0.080 in. Wall, For Guideplates, Each
Part Number: TFS-21418950-1
Estimated Ship Date: Dec 10, 2026 if ordered today
Estimated Ship Date: Dec 10, 2026 if ordered today