2010 Engine Kits & Rotating Assemblies

Pro LS 4340 Rotating Assembly, 377 Cid., 4.070 bore, 3.622 stroke, 58x, 6.125 rod, 2cc dome, 11.6:1 @ 65cc, 11:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R5836L0702

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Pro LS 4340 Rotating Assembly, 346 Cid., 3.898 bore, 3.622 stroke, 58x, 6.125 rod, 7cc dish, 9.7:1 @ 65cc, 9.4:1 @ 68cc, File-Fit Rings, H Bearings

Part Number: SUM-R5836L8987

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Pro LS 4340 Rotating Assembly, 346 Cid., 3.898 bore, 3.622 stroke, 58x, 6.125 rod, 3cc dome, 11:1 @ 65cc, 10.6:1 @ 68cc, File-Fit Rings, H Bearings

Part Number: SUM-R5836L8983

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Pro LS Rotating Assembly, 330 Cid., 3.810 bore, Standard 3.622 stroke, 58x, 6.125 rod, 2cc dome, 11:1 @ 61cc, 10.4:1 @ 65cc, File-Fit Rings, H Bearing

Part Number: SUM-R5836L8102

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Pro LS 4340 Rotating Assembly, 365 Cid., 4.005 bore, 3.622 stroke, 58x, 6.098 rod, 12cc dish, 9.6:1 @ 65cc, 9.2:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R583600512

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KIT-LS 402 4.000/4.005 18cc DI

Part Number: MAN-28402R

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Estimated Ship Date: Apr 27, 2026 if ordered today

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VERTEX COMPLETE ENGINE REBUILD KIT

Part Number: VPX-WR101-119

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Estimated Ship Date: Apr 6, 2026 if ordered today

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VERTEX TOP END PISTON KIT

Part Number: VPX-VTK22926B-1

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Estimated Ship Date: Apr 6, 2026 if ordered today

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Complete Engine Rebuild Kit, Stock Bore, Stock Stroke, 12.00 to 1 Compression, Yamaha, Kit

Part Number: VPX-WR101-147

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Estimated Ship Date: Apr 6, 2026 if ordered today

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VERTEX COMPLETE ENGINE REBUILD KIT

Part Number: VPX-WR101-085

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Estimated Ship Date: Apr 7, 2026 if ordered today

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VERTEX TOP END PISTON KIT

Part Number: VPX-VTKTC23623B

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Estimated Ship Date: Apr 7, 2026 if ordered today

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VERTEX TOP END PISTON KIT

Part Number: VPX-VTK23630A-1

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Estimated Ship Date: Apr 7, 2026 if ordered today

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VERTEX PISTON KIT

Part Number: VPX-VTKTC23908A

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Estimated Ship Date: Apr 6, 2026 if ordered today

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Cylinder Kit, Aluminum, 45.00mm Bore, KTM, Set

Part Number: CLW-50005

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Estimated Ship Date: Apr 17, 2026 if ordered today

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Cylinder Kit, Forged Aluminum, 3.20mm Oversize Bore, for use on Honda®, Set

Part Number: CLW-11007-K01

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Estimated Ship Date: Apr 17, 2026 if ordered today

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STD BORE KIT HI COMP

Part Number: CLW-20002-K03HC

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Estimated Ship Date: Apr 17, 2026 if ordered today

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Big Bore Cylinder Kit, Forged Piston, 80mm Bore, Yamaha, Motorcycle, Kit

Part Number: CLW-21002-K01

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Estimated Ship Date: Apr 17, 2026 if ordered today

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Rebuild Kit, Complete Bottom End, Yamaha, YZ250F, Kit

Part Number: HRI-CBK0087

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Estimated Ship Date: Apr 8, 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: Apr 17, 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: Apr 17, 2026 if ordered today

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Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-50015K

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Estimated Ship Date: Apr 17, 2026 if ordered today

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Repair Kit, Top End, 79.950mm Bore, 10.20 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50080K

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Estimated Ship Date: Apr 17, 2026 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NA-10043-1K

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Estimated Ship Date: Apr 17, 2026 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-40085-CK

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Estimated Ship Date: Apr 17, 2026 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-70020K

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Estimated Ship Date: Apr 17, 2026 if ordered today

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