Availability
Head Combo, GenX® Top-End, 580hp, 520 ft-lbs. Torque, GM, LS3, Square Port, Kit
Part Number: TFS-K326-580-520
Estimated Ship Date: Feb 10, 2026 if ordered today
Estimated Ship Date: Feb 10, 2026 if ordered today
Head Combo, GenX® Top-End, 515 HP/460 ft.-lbs. Torque, Chevy, Small Block, LS1, Kit
Part Number: TFS-K306-515-460
Head Combo, GenX® Top-End, 500 HP/460 ft.-lbs. Torque, Chevy, Small Block, LS1, Kit
Part Number: TFS-K306-500-460
Not Yet Reviewed
Headers, Down/Forward, Stainless, Natural, 1.75 in. Tube, 3.00 in. Collector, Chevy, Small Block LS, Pair
Part Number: TFS-LS1DFT
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Head Combo, GenX® Top-End, 455 hp/426 ft.-lbs. Torque, Chevy, 5.3L, Kit
Part Number: TFS-K305-455-425
Head Combo, GenX® Top-End, 485 hp/460 ft.-lbs. Torque, Chevy, Small Block, LS1, Kit
Part Number: TFS-K306-485-460
Not Yet Reviewed
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