Engine Kits & Rotating Assemblies

Repair Kit, Top End, 71.96mm Bore, 6.00 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50000K

Not Yet Reviewed

Estimated Ship Date: Feb 24, 2026 if ordered today

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Repair Kit, Top End, 72.46mm Bore, 6.00 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50000-2K

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Estimated Ship Date: Feb 24, 2026 if ordered today

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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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Estimated Ship Date: Tomorrow

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TOP END REPAIR KIT

Part Number: NTI-NA-50070-BK1

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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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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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Estimated Ship Date: Tomorrow

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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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Estimated Ship Date: Tomorrow

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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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Estimated Ship Date: Tomorrow

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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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Estimated Ship Date: Tomorrow

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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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Estimated Ship Date: Tomorrow

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Engine Re-Ring, Moly, 4 in. Bore, Standard Rod, Standard Main, Chevy, 350, Kit

Part Number: FEM-2056287M-000

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Estimated Ship Date: Tomorrow

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Engine Re-Ring, Cast, 4.185 in. Bore, .020 in. Rod, Chevy, 400, Kit

Part Number: FEM-205-118-32

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Estimated Ship Date: Tomorrow

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Engine Re-Ring, Cast, 4.060 in. Bore, .010 in. Rod, .030 in. Main, Chevy, 350, Kit

Part Number: FEM-205-130M613

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Estimated Ship Date: Tomorrow

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Engine Re-Ring, Cast, 4 in. Bore, .020 Rod, .010 Main, Ford, Kit

Part Number: FEM-205124AM-021

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Estimated Ship Date: Tomorrow

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Engine Re-Ring, Cast, 4 in. Bore, .010 Rod, .020 in. Main, Ford, 351W, Kit

Part Number: FEM-205125M-012

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Estimated Ship Date: Tomorrow

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Engine Rebuild Kits, Re-Ring, 4.00 in. Bore, 0.010 in. Rod Bearing Crank Undersize, 0.010 in. Main Bearing Crank Undersize, Gaskets, Chevy, Kit

Part Number: FEM-2051287M-011

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Estimated Ship Date: Tomorrow

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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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Estimated Ship Date: Tomorrow

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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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Estimated Ship Date: Tomorrow

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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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Estimated Ship Date: Tomorrow

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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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Estimated Ship Date: Tomorrow

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Engine Re-Ring, Cast, 4.360 in. Bore, Standard Rod, Ford, Big Block, Kit

Part Number: FEM-205137-00

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Estimated Ship Date: Tomorrow

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Engine Re-Ring, Cast, 4.360 in. Bore, .010 in. Rod, Ford, Big Block, Kit

Part Number: FEM-205137-01

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Estimated Ship Date: Tomorrow

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

Part Number: FEM-205147-00

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Estimated Ship Date: Tomorrow

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Engine Re-Ring, Cast, 3.736 in. Bore, .010 in. Rod, .010 in. Main, Chevy, 305, Kit

Part Number: FEM-205147M-011

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Estimated Ship Date: Tomorrow

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Engine Re-Ring, Cast, 3.736 in. Bore, .020 in. Rod, .010 in. Main, Chevy, 305, Kit

Part Number: FEM-205147M-021

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Estimated Ship Date: Tomorrow

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