Engine Kits & Rotating Assemblies

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

Part Number: NTI-NA-40005-2K

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Estimated Ship Date: Aug 1, 2025 if ordered today

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

Part Number: NTI-NX-20025-CK

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Estimated Ship Date: Jul 16, 2025 if ordered today

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

Part Number: NTI-NX-40026K

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Estimated Ship Date: Aug 1, 2025 if ordered today

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

Part Number: NTI-NA-10001K

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Estimated Ship Date: Aug 1, 2025 if ordered today

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

Part Number: NTI-NA-50001-4K

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Estimated Ship Date: Aug 1, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NA-50070-BK1

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Repair Kit, Top End, 79.960mm Bore, 10.20 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50080-BK

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Repair Kit, Top End, 67.35mm Bore, 8.60 to 1 Compression Ratio, Kawasaki, Kit

Part Number: NTI-NX-20025-4K

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

Part Number: NTI-NA-20005-2K

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Repair Kit, Top End, 91.96mm Bore, 9.20 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NA-10008K

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Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-10012-2K

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Repair Kit, Top End, 84.98mm Bore, 9.30 to 1 Compression Ratio, Kawasaki, Kit

Part Number: NTI-NA-20075-CK

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

Part Number: NTI-NA-40005K

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Engine Re-Ring, 4.000 in. Bore, .030 in. Rod, .030 in. Main, Chevy, Kit

Part Number: SUM-RRKIT1-033

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

Part Number: SUM-RRKIT1-423

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

Part Number: SUM-RRKIT1-433

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Repair Kit, Top End, 93.47mm Bore, 10.20 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50004-6K

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

Part Number: FEM-205718A-00

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Engine Re-Ring, Moly, 4 in. Bore, .010 in. Rod, Ford, 302, Kit

Part Number: FEM-205760-01

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Engine Re-Ring, Moly, 4 in. Bore, .010 in. Rod, .010 in. Main, Ford, 302, Kit

Part Number: FEM-205760M-011

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Engine Re-Ring, Moly, 4.000 in. Bore, .010 in. Rod, .010 in. Main, Ford, 351W, Kit

Part Number: FEM-205761M-011

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Engine Re-Ring, Moly, 4.000 in. Bore, .010 in. Rod, .010 in. Main, Ford, 5.0L, Kit

Part Number: FEM-205887M-011

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Engine Re-Ring, Moly, 4.155 in. Bore, Standard Rod, Chevy, 400, Kit

Part Number: FEM-205618-00

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Engine Re-Ring, Moly, 4.125 in. Bore, Standard Rod, .010 in. Main, Chevy, 400, Kit

Part Number: FEM-205618M-001

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