Engine Rotating Assemblies & Rebuild Kits

Engine Re-Ring, Moly, 4 in. Bore, .010 in. Rod, Ford, 351/400, Kit

Part Number: FEM-205-62401

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Engine Re-Ring, 4.030 in. Bore, .030 in. Rod, .030 in. Main, Chevy, Kit

Part Number: SUM-RRKIT1-333

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Repair Kit, Top End, 85.47mm Bore, for use on Honda®, Kit

Part Number: NTI-NA-10040-2K

Not Yet Reviewed

Estimated Ship Date: Aug 8, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

TOP END REPAIR KIT

Part Number: NTI-NA-10040-4K

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Engine Re-Ring, 4.030 in. Bore, .020 in. Rod, .010 in. Main, Chevy, Kit

Part Number: SUM-RRKIT1-321

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• Free Shipping

Engine Re-Ring, 4.060 in. Bore, .010 in. Rod, .020 in. Main, Chevy, Kit

Part Number: SUM-RRKIT1-612

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Engine Re-Ring, 4.000 in. Bore, .020 in. Rod, .020 in. Main, Chevy, Kit

Part Number: SUM-RRKIT1-022

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Repair Kit, Top End, 80.95mm Bore, 6.00 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50001-4K

Not Yet Reviewed

Estimated Ship Date: Aug 8, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Repair Kit, Top End, 85.970mm Bore, 8.20 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NA-10001K

Not Yet Reviewed

Estimated Ship Date: Aug 8, 2025 if ordered today

• Drop Ship
• Special Order

Repair Kit, Top End, 83.450mm Bore, 9.50 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40005-2K

Not Yet Reviewed

Estimated Ship Date: Aug 11, 2025 if ordered today

• Drop Ship
• Special Order

Repair Kit, Top End, 67.94mm Bore, 10.60 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NX-40026K

Not Yet Reviewed

Estimated Ship Date: Aug 8, 2025 if ordered today

• Drop Ship
• Special Order

Repair Kit, Top End, 53.960mm Bore, 8.90 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NX-40000-CK

Not Yet Reviewed

Estimated Ship Date: Aug 8, 2025 if ordered today

• Drop Ship
• Special Order

Repair Kit, Top End, 53.950mm Bore, 10.70 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NX-40009K

Not Yet Reviewed

Estimated Ship Date: Aug 11, 2025 if ordered today

• Drop Ship
• Special Order

TOP END REPAIR KIT

Part Number: NTI-NX-10081-BK

Not Yet Reviewed

Estimated Ship Date: Aug 11, 2025 if ordered today

• Drop Ship
• Special Order

TOP END REPAIR KIT

Part Number: NTI-NX-40008K

Not Yet Reviewed

Estimated Ship Date: Aug 11, 2025 if ordered today

• Drop Ship
• Special Order

TOP END REPAIR KIT

Part Number: NTI-NA-30080-2K

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-50006-2K

Not Yet Reviewed

Estimated Ship Date: Today

TOP END REPAIR KIT

Part Number: NTI-NA-30050K1

Not Yet Reviewed

Estimated Ship Date: Aug 8, 2025 if ordered today

• Drop Ship
• Special Order

Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-30008-2K

Not Yet Reviewed

Estimated Ship Date: Today

Top End Engine Kits CYL WORKS STD BORE KIT HI COMP CYL WORKS STD BORE KIT HI COMP 800 SPORSTMAN/RZR/RANGER

Part Number: CLW-60002-K02HC

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

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

Part Number: CLW-21003-K02

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Cylinder Kit, Forged Aluminum, Standard Bore, Yamaha, Set

Part Number: CLW-20104-K01

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Repair Kit, Top End, 82.950mm Bore, 9.50 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40005K

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Repair Kit, Top End, 83.500mm Bore, 8.60 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40006-2K

Not Yet Reviewed

Estimated Ship Date: Today

Rebuild Kit, Complete Bottom End, for use on Honda®, CR250R, Kit

Part Number: HRI-CBK0031

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping