Availability
Looking for more horsepower and torque from your engine? Of course you are. A new top end engine kit may be just the ticket. Summit Racing carries several dozen top...
Looking for more horsepower and torque from your engine? Of course you are. A new top end engine kit may be just the ticket. Summit Racing carries several dozen top end kits for a wide variety of engines, comprised of all the pieces and parts you need to get the job done. Want to make 400 hp with your Ford 351W? There’s an Edelbrock kit for that. Want to make 420 hp with your small block Chevy? Trick Flow has you covered. Explore the huge selection of performance top end kits from Dart, Brodix, Mast Motorsports, Chevy Performance, and many more, and order yours from Summit Racing today!
Looking for more horsepower and torque from your engine? Of course you are. A new top end engine kit may be just the ticket. Summit Racing carries several dozen top end kits for a wide variety of engines, comprised of all the pieces and parts you need to get the job done. Want to make 400 hp with your Ford 351W? There’s an Edelbrock kit for that. Want to make 420 hp with your small block Chevy? Trick Flow has you covered. Explore the huge selection of performance top end kits from Dart, Brodix, Mast Motorsports, Chevy Performance, and many more, and order yours from Summit Racing today!
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, 455 hp/426 ft.-lbs. Torque, Chevy, 5.3L, Kit
Part Number: TFS-K305-455-425
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
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
LT1 CAM and Head Kit
Part Number: NAL-19333525
Not Yet Reviewed
Estimated Ship Date: Mar 24, 2026 if ordered today
Estimated Ship Date: Mar 24, 2026 if ordered today
Top End Engine Kit, Power Package, Intake, Heads, Cam, Timing Chain, Head Bolts, Chevy LS3, 573 HP,-485 TQ, Kit
Part Number: EDL-2070
Not Yet Reviewed
Estimated Ship Date: Nov 28, 2025 if ordered today
Estimated Ship Date: Nov 28, 2025 if ordered today
Top End Engine Kit, Power Package, Intake, Heads, Cam, Timing Chain, Head Bolts, Chevy LS3, Kit
Part Number: EDL-2071
Not Yet Reviewed
Estimated Ship Date: Nov 28, 2025 if ordered today
Estimated Ship Date: Nov 28, 2025 if ordered today
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