Engine Rotating Assemblies & Rebuild Kits

Repair Kit, Top End, 52.500mm Bore, 9.60 to 1 Compression Ratio, Kawasaki, Kit

Part Number: NTI-NX-20010K

Not Yet Reviewed

Estimated Ship Date: Sep 22, 2025 if ordered today

• Drop Ship
• Special Order

HD IN-FRAME KIT, STD

Part Number: CLE-4895020STD

Not Yet Reviewed

Estimated Ship Date: Oct 13, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

QB FULL TOP END SET

Part Number: QDB-56-3913

Not Yet Reviewed

Estimated Ship Date: Sep 16, 2025 if ordered today

• Drop Ship
• Special Order

STD BORE KIT

Part Number: CLW-50003-K01

Not Yet Reviewed

Estimated Ship Date: Sep 22, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Cylinder Kit, Forged Aluminum, 3.00mm Oversize Bore, Yamaha, YFZ450, Set

Part Number: CLW-23001-K01

Not Yet Reviewed

Estimated Ship Date: Sep 22, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Cylinder Kit, Forged Aluminum, 3.00mm Oversize Bore, Yamaha, Set

Part Number: CLW-21010-K01

Not Yet Reviewed

Estimated Ship Date: Sep 22, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Top End Engine Kits RAPTOR +3MM BIG BORE KIT RAPTOR +3MM BIG BORE KIT

Part Number: CLW-21004-K02

Not Yet Reviewed

Estimated Ship Date: Sep 22, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Cylinder Kit, Forged Aluminum, 4.00mm Oversize Bore, KTM, Set

Part Number: CLW-51002-K01

Not Yet Reviewed

Estimated Ship Date: Sep 22, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

3.622" stroke, internal balance, billet 4340 steel, center-counterweighted Chevrolet Gen III "LS", no reluctor

Part Number: ESP-334536236100

Not Yet Reviewed

Estimated Ship Date: Sep 29, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

4.000" stroke, internal balance, billet 4340 steel, center-counterweighted Chevrolet Gen III "LS", no reluctor

Part Number: ESP-334540016100

Not Yet Reviewed

Estimated Ship Date: Sep 29, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Rebuild Kit, Complete Bottom End, Polaris, Kit

Part Number: HRI-CBK0224

Not Yet Reviewed

Estimated Ship Date: Sep 15, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

VERTEX TOP END PISTON KIT

Part Number: VPX-VTK23630A-1

Not Yet Reviewed

Estimated Ship Date: Sep 22, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Complete Engine Rebuild Kit, 0.50mm Over Bore, Stock Stroke, Kawasaki, Kit

Part Number: VPX-WR00058

Not Yet Reviewed

Estimated Ship Date: Sep 22, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

VERTEX TOP END PISTON KIT

Part Number: VPX-VTK22926B-1

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Sep 22, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

TOP END GASKET KIT, TOP END REPAIR KIT (FORGED PISTON)

Part Number: NTI-FX-40032K

Not Yet Reviewed

Estimated Ship Date: Sep 22, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

HD IN-FRAME KIT

Part Number: CLE-4565050STD

Not Yet Reviewed

Estimated Ship Date: Oct 7, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Top End Engine Kit, M8 124 in. Big Bore, Wrinkle Black Finish with Highlighted Fins, 4.250 in., Forged Piston, Harley-Davidson®, Kit

Part Number: SSY-910-0625

Not Yet Reviewed

Estimated Ship Date: Sep 22, 2025 if ordered today

• Drop Ship
• Free Shipping
• $10.00 Summit Bucks
• Special Order

HD IN-FRAME KIT

Part Number: CLE-4595518STD

Not Yet Reviewed

Estimated Ship Date: Oct 10, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Rebuild Kit, Complete Bottom End, Kawasaki, KX100, Kit

Part Number: HRI-CBK0102

Not Yet Reviewed

Estimated Ship Date: Sep 12, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Cylinder Kit, Forged Piston, Standard Bore, Gaskets, Rings, Yamaha, Motorcycle, Kit

Part Number: CLW-20002-K03

Not Yet Reviewed

Estimated Ship Date: Sep 22, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

CYL WORKS BIG BORE KIT YZ450F

Part Number: CLW-21005-K02

Not Yet Reviewed

Estimated Ship Date: Sep 22, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

TOP END GASKET KIT, TOP END REPAIR KIT (FORGED PISTON)

Part Number: NTI-FX-40037K

Not Yet Reviewed

Estimated Ship Date: Sep 22, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Cylinder Head NAMURA TOP END REPAIR KIT NAMURA TOP END REPAIR KIT

Part Number: NTI-NA-10014K

Not Yet Reviewed

Estimated Ship Date: Sep 22, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

ProX Engine Kit Plrs. Sptsmn800HO '08-09

Part Number: PXR-10-EK5805-A

Not Yet Reviewed

Estimated Ship Date: Sep 22, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Rebuild Kit, Complete Bottom End, Suzuki, RM250, Kit

Part Number: HRI-CBK0026

Not Yet Reviewed

Estimated Ship Date: Sep 12, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order