Engine Rotating Assemblies & Rebuild Kits

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: Dec 15, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

BIG BORE KIT

Part Number: CLW-11004-K01

Not Yet Reviewed

Estimated Ship Date: Dec 3, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

STANDARD BORE CYLINDER KIT

Part Number: CLW-30006-K02

Not Yet Reviewed

Estimated Ship Date: Dec 3, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Big Bore Cylinder Kit, Forged Piston, 80mm Bore, Kawasaki, Suzuki, Motorcycle, Kit

Part Number: CLW-31001-K01

Not Yet Reviewed

Estimated Ship Date: Dec 3, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Top End Engine Kits STANDARD BORE KIT HI COMP STANDARD BORE KIT HI COMP

Part Number: CLW-60001-K01HC

Not Yet Reviewed

Estimated Ship Date: Dec 3, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Rebuild Kit, Complete Bottom End, KTM, 250 XC, 250 XC-W, Kit

Part Number: HRI-CBK0011

Not Yet Reviewed

Estimated Ship Date: Nov 24, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

COMPLETE BOTTOM END KIT

Part Number: HRI-CBK0012

Not Yet Reviewed

Estimated Ship Date: Nov 24, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Rebuild Kit, Complete Bottom End, for use on Honda®, Kit

Part Number: HRI-CBK0016

Not Yet Reviewed

Estimated Ship Date: Nov 24, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Rebuild Kit, Complete Bottom End, Kawasaki, Kit

Part Number: HRI-CBK0028

Not Yet Reviewed

Estimated Ship Date: Nov 24, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Rebuild Kit, Complete Bottom End, Kawasaki, KX85, Kit

Part Number: HRI-CBK0029

Not Yet Reviewed

Estimated Ship Date: Nov 24, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

BOTTOM END KIT Polaris

Part Number: HRI-HR00111

Not Yet Reviewed

Estimated Ship Date: Nov 24, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

BOTTOM END KIT Yamaha

Part Number: HRI-HR00112

Not Yet Reviewed

Estimated Ship Date: Nov 24, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

BOTTOM END KIT Polaris

Part Number: HRI-HR00116

Not Yet Reviewed

Estimated Ship Date: Nov 24, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

BOTTOM END KIT Yamaha

Part Number: HRI-HR00124

Not Yet Reviewed

Estimated Ship Date: Nov 24, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

TOP END KIT HYPERDRYVE 103.97/+1.00 YAM

Part Number: NTI-NA-40025-4K

Not Yet Reviewed

Estimated Ship Date: Dec 2, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

TOP END KIT HYPERDRYVE 102.97/STD YAM

Part Number: NTI-NA-40025K

Not Yet Reviewed

Estimated Ship Date: Dec 2, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Piston, TOP END REPAIR KIT

Part Number: NTI-NA-40080-2K

Not Yet Reviewed

Estimated Ship Date: Dec 2, 2025 if ordered today

• Drop Ship
• Special Order

Piston, TOP END REPAIR KIT

Part Number: NTI-NA-40080K

Not Yet Reviewed

Estimated Ship Date: Dec 2, 2025 if ordered today

• Drop Ship
• Special Order

Repair Kit, Top End, 83.44mm Bore, 6.90 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50002-2K

Not Yet Reviewed

Estimated Ship Date: Dec 2, 2025 if ordered today

• Drop Ship
• Special Order

Repair Kit, Top End, 83.94mm Bore, 6.90 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50002-4K

Not Yet Reviewed

Estimated Ship Date: Dec 2, 2025 if ordered today

• Drop Ship
• Special Order

Repair Kit, Top End, 82.94mm Bore, 6.90 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50002K

Not Yet Reviewed

Estimated Ship Date: Dec 2, 2025 if ordered today

• Drop Ship
• Special Order

Repair Kit, Top End, 74.97mm Bore, 8.60 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50003-2K

Not Yet Reviewed

Estimated Ship Date: Dec 2, 2025 if ordered today

• Drop Ship
• Special Order

Repair Kit, Top End, 75.97mm Bore, 8.60 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50003-6K

Not Yet Reviewed

Estimated Ship Date: Dec 2, 2025 if ordered today

• Drop Ship
• Special Order

Repair Kit, Top End, 92.47mm Bore, 10.20 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50004-2K

Not Yet Reviewed

Estimated Ship Date: Dec 2, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-50011K

Not Yet Reviewed

Estimated Ship Date: Dec 2, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order