Top End Kits | Summit Racing

Trick Flow® 455 HP GenX® Top-End Engine Kits for GM LS Truck TFS-K305-455-425

Trick Flow® 455 HP GenX® Top-End Engine Kits for GM LS Truck TFS-K305-455-425

Head Combo, GenX® Top-End, 455 hp/426 ft.-lbs. Torque, Chevy, 5.3L, Kit

Part Number: TFS-K305-455-425

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Summit Racing™ Top End Engine Kits for Small Chevy SME-K-415-405

Combo, Aluminum, Cylinder Heads, Manifold, Cam/Lifters 528/539, Gaskets, Bolts, SB Chevy

Part Number: SME-K-415-405

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Trick Flow® 515 HP GenX® Top-End Engine Kits for GM LS1 TFS-K306-515-460

Head Combo, GenX® Top-End, 515 HP/460 ft.-lbs. Torque, Chevy, Small Block, LS1, Kit

Part Number: TFS-K306-515-460

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Trick Flow® 550 HP GenX® Top-End Engine Kits for GM LS2 TFS-K306-550-470

Head Combo, GenX® Top-End, Chevy, Small Block, LS2, Kit

Part Number: TFS-K306-550-470

3.33 out of 5 stars ( 3 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Trick Flow® 500 HP GenX® Top-End Engine Kits for GM LS1 TFS-K306-500-460

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

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Trick Flow® 485 HP GenX® Top-End Engine Kits for GM LS1 TFS-K306-485-460

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

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Summit Racing™ Top End Pro Packs 08-0037

Combo, Cylinder Heads, Aluminum, Intake Manifold, Aluminum, Edelbrock, Cam/Lifters, Gaskets, Bolts, Kit

Part Number: CMB-08-0037

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

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