Engine Kits & Rotating Assemblies

Engine Re-Ring, Cast, 4 in. Bore, Standard Rod, Chevy, Kit

Part Number: FEM-205130-00

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Engine Re-Ring, Cast, 4 in. Bore, .010 in. Rod, Chevy, Kit

Part Number: FEM-205130-01

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Engine Re-Ring, Cast, 4.000 in. Bore, Standard Rod, .010 in. Main, Chevy, 350, Kit

Part Number: FEM-205130M-001

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Engine Re-Ring, Cast, 4.000 in. Bore, .010 in. Rod, .010 in. Main, Chevy, 350, Kit

Part Number: FEM-205130M-011

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Engine Re-Ring, Cast, 4.000 in. Bore, .020 in. Rod, .010 in. Main, Chevy, 350, Kit

Part Number: FEM-205130M-021

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Engine Re-Ring, 4.040 in. Bore, .030 in. Rod, .010 in. Main, Chevy, Kit

Part Number: SUM-RRKIT1-431

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

Part Number: NTI-NA-20005K

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Estimated Ship Date: Jan 15, 2026 if ordered today

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Repair Kit, Top End, 89.96mm Bore, 11.30 to 1 Compression Ratio, Arctic Cat, Kawasaki, Suzuki, Kit

Part Number: NTI-NA-30002K

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Estimated Ship Date: Jan 15, 2026 if ordered today

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Piston, TOP END REPAIR KIT

Part Number: NTI-NA-40013K

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Estimated Ship Date: Jan 15, 2026 if ordered today

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Repair Kit, Top End, 78.96mm Bore, 8.80 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NA-10007-2K

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Estimated Ship Date: Jan 15, 2026 if ordered today

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Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-10014-2K

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Estimated Ship Date: Jan 15, 2026 if ordered today

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Repair Kit, Top End, 68.70mm Bore, 9.50 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NA-10027-1K

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Estimated Ship Date: Jan 15, 2026 if ordered today

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Repair Kit, Top End, 94.960mm Bore, 11.40 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40009-BK

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Estimated Ship Date: Jan 12, 2026 if ordered today

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Top End Engine Kits CYL WORKS STD BORE POWER VALVE CYL WORKS STD BORE POWER VALVE YZ250 '99-15

Part Number: CLW-CW-PV-K01

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Estimated Ship Date: Jan 15, 2026 if ordered today

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TOP END PISTON KIT

Part Number: VPX-VTK23928B-3

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Repair Kit, Top End, 66.350mm Bore, 10.90 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NX-40025KA

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Estimated Ship Date: Jan 15, 2026 if ordered today

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

Part Number: NTI-FX-40033K

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Estimated Ship Date: Jan 15, 2026 if ordered today

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Repair Kit, Top End, 68.95mm Bore, 9.50 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NA-10027-2K

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Estimated Ship Date: Jan 15, 2026 if ordered today

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Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-10046K

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Estimated Ship Date: Jan 15, 2026 if ordered today

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Repair Kit, Top End, 84.950mm Bore, 10.00 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40011-2K

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Estimated Ship Date: Jan 15, 2026 if ordered today

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Repair Kit, Top End, 84.44mm Bore, 6.90 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50002-6K

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Estimated Ship Date: Jan 15, 2026 if ordered today

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

Part Number: NTI-NA-50002K

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Estimated Ship Date: Jan 15, 2026 if ordered today

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

Part Number: NTI-NA-50003-6K

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Estimated Ship Date: Jan 15, 2026 if ordered today

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

Part Number: NTI-NA-50004-2K

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Estimated Ship Date: Jan 15, 2026 if ordered today

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Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-50026K

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Estimated Ship Date: Jan 15, 2026 if ordered today

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