Engine Rotating Assemblies & Rebuild Kits

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

Part Number: NTI-FX-10035K

Not Yet Reviewed

Estimated Ship Date: Apr 10, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

TOP END KIT 81.96MM

Part Number: NTI-NA-80004K

Not Yet Reviewed

Estimated Ship Date: Apr 10, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

TOP END REPAIR KIT

Part Number: NTI-NX-70004-BK

Not Yet Reviewed

Estimated Ship Date: Apr 10, 2026 if ordered today

• Drop Ship
• Special Order

Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-50015-2K

Not Yet Reviewed

Estimated Ship Date: Apr 10, 2026 if ordered today

• Drop Ship
• Special Order

Repair Kit, Top End, 72.96mm Bore, 6.00 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50000-4K

Not Yet Reviewed

Estimated Ship Date: Apr 10, 2026 if ordered today

• Drop Ship
• Special Order

Repair Kit, Top End, 66.35mm Bore, 8.60 to 1 Compression Ratio, Suzuki, Kit

Part Number: NTI-NX-30024K1

Not Yet Reviewed

Estimated Ship Date: Apr 10, 2026 if ordered today

• Drop Ship
• Special Order

Piston, TOP END REPAIR KIT

Part Number: NTI-NA-50090K

Not Yet Reviewed

Estimated Ship Date: Apr 10, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

TOP END KIT 43.45/+0.01 11:1 YAM

Part Number: NTI-NX-40097-BK

Not Yet Reviewed

Estimated Ship Date: Apr 10, 2026 if ordered today

• Drop Ship
• Special Order

TOP END REPAIR KIT

Part Number: NTI-NX-70005-BK

Not Yet Reviewed

Estimated Ship Date: Apr 10, 2026 if ordered today

• Drop Ship
• Special Order

Repair Kit, Top End, 73.46mm Bore, 6.00 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50000-6K

Not Yet Reviewed

Estimated Ship Date: Apr 10, 2026 if ordered today

• Drop Ship
• Special Order

TOP END REPAIR KIT

Part Number: NTI-NX-70050-BK

Not Yet Reviewed

Estimated Ship Date: Apr 10, 2026 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: Apr 10, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Engine Re-Ring, Moly, 4.030 in. Bore, .020 in. Rod, Chevy, 350, Kit

Part Number: FEM-205630-32

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Engine Re-Ring, Moly, 3.736 in. Bore, Standard Rod, Chevy, 305, Kit

Part Number: FEM-205647-00

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Engine Rebuild, Hypereutectic Dish, 4.040 in. Bore, .030 in. Crankshaft Undersize Rod, .010 in. Crankshaft Undersize Main, Chevy 383

Part Number: SUM-SBCKIT2-431

Not Yet Reviewed

Cannot be shipped Internationally

• Restricted
• Free Shipping

Engine Re-Ring, Cast, 3.910 in. Bore, Standard Rod, Dodge, 318, Kit

Part Number: FEM-205243-00

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

VERTEX COMPLETE ENGINE REBUILD KIT

Part Number: VPX-WR101-141

Not Yet Reviewed

Estimated Ship Date: Apr 7, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Rebuild Kit, Complete Bottom End, Kawasaki, Kit

Part Number: HRI-CBK0061

Not Yet Reviewed

Estimated Ship Date: Apr 1, 2026 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: Mar 30, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Engine Re-Ring, Moly, 3.910 in. Bore, Standard Rod, Standard Main, Dodge, 318, Kit

Part Number: FEM-205744AM-000

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Engine Re-Ring, Moly, 4.030 in. Bore, .020 in. Rod, .010 in. Main, Chevy, 327, Kit

Part Number: FEM-205662M-321

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

BOTTOM END KIT Polaris

Part Number: HRI-HR00109

Not Yet Reviewed

Estimated Ship Date: Apr 1, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Complete Engine Rebuild Kit, Stock Bore, Stock Stroke, KTM, Kit

Part Number: VPX-WR101-120

Not Yet Reviewed

Estimated Ship Date: Apr 7, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

TOP END KIT FR WITH CAM CHAIN

Part Number: VPX-VTKTC22983A

Not Yet Reviewed

Estimated Ship Date: Apr 6, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Repair Kit, Top End, 66.370mm Bore, 8.60 to 1 Compression Ratio, Kawasaki, Kit

Part Number: NTI-NX-20025-CK

Not Yet Reviewed

Estimated Ship Date: Apr 10, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order