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Engines & Engine Parts
Welcome to your headquarters for horsepower—the place to get everything you need to build real power and performance! We’ve got competition-proven crate engines, performance-matched...
Welcome to your headquarters for horsepower—the place to get everything you need to build real power and performance! We’ve got competition-proven crate engines, performance-matched top end kits, and complete rotating assemblies from the biggest names in the industry. You can add a set of high-flow cylinder heads to your powerplant, upgrade your valvetrain, improve your oiling system, or drop in a new set of pistons. We also have a complete selection of crankshafts, connecting rods, harmonic balancers, pulleys, and engine brackets. We even have everything you need to restore the horsepower that time has stolen from your...
Welcome to your headquarters for horsepower—the place to get everything you need to build real power and performance! We’ve got competition-proven crate engines, performance-matched top end kits, and complete rotating assemblies from the biggest names in the industry. You can add a set of high-flow cylinder heads to your powerplant, upgrade your valvetrain, improve your oiling system, or drop in a new set of pistons. We also have a complete selection of crankshafts, connecting rods, harmonic balancers, pulleys, and engine brackets. We even have everything you need to restore the horsepower that time has stolen from your daily driver.
FD BB FT 4.400B/4.500S/6.800R/1.245CD N/
Part Number: DPP-40025
Not Yet Reviewed
Estimated Ship Date: May 11, 2026 if ordered today
Estimated Ship Date: May 11, 2026 if ordered today
Domestic Series - 900HP Rated - 2618 Material - Includes Pins and Rings
Part Number: DPP-40025-8
Not Yet Reviewed
Estimated Ship Date: May 15, 2026 if ordered today
Estimated Ship Date: May 15, 2026 if ordered today
429/460 4.400B/1.245CD/Kit
Part Number: DPP-40025-8-H
Not Yet Reviewed
Estimated Ship Date: May 15, 2026 if ordered today
Estimated Ship Date: May 15, 2026 if ordered today
Piston and Ring Kit, Forged Aluminum, 4.250 in. Bore, Harley-Davidson®, Kit
Part Number: WIS-40025PS
Not Yet Reviewed
Estimated Ship Date: Apr 28, 2026 if ordered today
Estimated Ship Date: Apr 28, 2026 if ordered today
TOP END REPAIR KIT
Part Number: NTI-NX-40025-6KA
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
TOP END KIT HYPERDRYVE 103.47/+0.50 YAM
Part Number: NTI-NA-40025-2K
Not Yet Reviewed
Estimated Ship Date: Apr 29, 2026 if ordered today
Estimated Ship Date: Apr 29, 2026 if ordered today
PISTON KIT HYPERDRYVE 103.47/+0.50 11:1 YAM
Part Number: NTI-NA-40025-2
Not Yet Reviewed
Estimated Ship Date: Apr 29, 2026 if ordered today
Estimated Ship Date: Apr 29, 2026 if ordered today
Repair Kit, Top End, 66.370mm Bore, 10.90 to 1 Compression Ratio, Yamaha, Kit
Part Number: NTI-NX-40025-CKA
Not Yet Reviewed
Estimated Ship Date: May 1, 2026 if ordered today
Estimated Ship Date: May 1, 2026 if ordered today
PISTON KIT HYPERDRYVE 102.97/STD 11:1 YAM
Part Number: NTI-NA-40025
Not Yet Reviewed
Estimated Ship Date: Tomorrow if ordered today
Estimated Ship Date: Tomorrow if ordered today
TOP END REPAIR KIT
Part Number: NTI-NX-40025-BK
Not Yet Reviewed
Estimated Ship Date: May 1, 2026 if ordered today
Estimated Ship Date: May 1, 2026 if ordered today
PISTON KIT CERAMIC COMP CYL 66.37/+0.02 10.9:1 YAM
Part Number: NTI-NX-40025-C
Not Yet Reviewed
Estimated Ship Date: Apr 30, 2026 if ordered today
Estimated Ship Date: Apr 30, 2026 if ordered today
PISTON KIT HYPERDRYVE 103.97/+1.00 11:1 YAM
Part Number: NTI-NA-40025-4
Not Yet Reviewed
Estimated Ship Date: Apr 23, 2026 if ordered today
Estimated Ship Date: Apr 23, 2026 if ordered today
TOP END KIT HYPERDRYVE 103.97/+1.00 YAM
Part Number: NTI-NA-40025-4K
Not Yet Reviewed
Estimated Ship Date: Apr 23, 2026 if ordered today
Estimated Ship Date: Apr 23, 2026 if ordered today
Valve Springs, Dual, Titanium Retainers, Kawasaki, Kit
Part Number: KPM-40-40025
Not Yet Reviewed
Estimated Ship Date: Tomorrow if ordered today
Estimated Ship Date: Tomorrow if ordered today
Repair Kit, Top End, 66.360mm Bore, 10.90 to 1 Compression Ratio, Yamaha, Kit
Part Number: NTI-NX-40025-BKA
Not Yet Reviewed
Estimated Ship Date: May 1, 2026 if ordered today
Estimated Ship Date: May 1, 2026 if ordered today
Oil Filter, Industrial Hydraulic, Cartridge, 2.360 in. Diameter, 25 Micron, 5.670 in. Height, Polyester, 44 Psi Relief Valve, Outside-In Flow, Each
Part Number: WIX-R40025XAV
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
Repair Kit, Top End, 66.360mm Bore, 10.90 to 1 Compression Ratio, Yamaha, Kit
Part Number: NTI-NX-40025-CK
Not Yet Reviewed
Estimated Ship Date: May 1, 2026 if ordered today
Estimated Ship Date: May 1, 2026 if ordered today
Repair Kit, Top End, 66.350mm Bore, 10.90 to 1 Compression Ratio, Yamaha, Kit
Part Number: NTI-NX-40025K
Not Yet Reviewed
Estimated Ship Date: May 1, 2026 if ordered today
Estimated Ship Date: May 1, 2026 if ordered today
Repair Kit, Top End, 66.350mm Bore, 10.90 to 1 Compression Ratio, Yamaha, Kit
Part Number: NTI-NX-40025KA
Not Yet Reviewed
Estimated Ship Date: May 1, 2026 if ordered today
Estimated Ship Date: May 1, 2026 if ordered today
TOP END KIT HYPERDRYVE 102.97/STD YAM
Part Number: NTI-NA-40025K
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
