Engine Rotating Assemblies & Rebuild Kits

Pro LS 4340 Rotating Assembly, 417 Cid., 4.075 bore, 4.000 stroke, 24X, 6.125 rod, 21cc dish, 9.9:1 @ 65cc, 9.5:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R244007521

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Pro LS 4340 Rotating Assembly, 417 Cid., 4.075 bore, 4.000 stroke, 24X, 6.125 rod, 6cc dish, 11.5:1 @ 65cc, 11:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R24400756

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Pro LS 4340 Rotating Assembly, 417 Cid., 4.080 bore, 4.000 stroke, 24X, 6.125 rod, 6cc dish, 11.6:1 @ 65cc, 11:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R24400806

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Pro LS 4340 Rotating Assembly, 359 Cid., 3.780 bore, 4.000 stroke, 24X, 6.125 rod, 5cc dish, 10.9:1 @ 61cc, 10.4:1 @ 65cc, File-Fit Rings, H Bearings

Part Number: SUM-R24407805

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Pro LS 4340 Rotating Assembly, 364 Cid., 3.810 bore, 4.000 stroke, 24X, 6.125 rod, 12cc dish, 10:2 @ 61cc, 9.7:1 @ 65cc, File-Fit Rings, H Bearings

Part Number: SUM-R244081012

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Engine Rebuild, Hypereutectic Flat, 4.040 in. Bore, .030 in. Rod, .030 in. Main, Chevy, 350, Kit

Part Number: SUM-SBCKIT3-433

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HD IN-FRAME KIT

Part Number: CLE-4685133STD

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Estimated Ship Date: Sep 15, 2025 if ordered today

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HD IN-FRAME KIT

Part Number: CLE-4805021STD

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Estimated Ship Date: Sep 15, 2025 if ordered today

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ROTATING ASSEMBLY

Part Number: CPI-KV1291H-CS

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Estimated Ship Date: Oct 30, 2025 if ordered today

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QB FULL TOP END SET

Part Number: QDB-56-3902

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Estimated Ship Date: Sep 19, 2025 if ordered today

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Piston, TOP END REPAIR KIT

Part Number: NTI-NA-50091-BK

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Estimated Ship Date: Sep 23, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-20010-CK

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Estimated Ship Date: Sep 23, 2025 if ordered today

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

Part Number: NTI-NX-20013K

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Estimated Ship Date: Sep 23, 2025 if ordered today

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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: Sep 23, 2025 if ordered today

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Complete Engine Rebuild Kit, Stock Bore, Stock Stroke, 9.10 to 1 Compression, Yamaha, Kit

Part Number: VPX-WR101-137

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Estimated Ship Date: Sep 23, 2025 if ordered today

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QB FULL TOP END SET

Part Number: QDB-56-3913

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Estimated Ship Date: Sep 18, 2025 if ordered today

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PISTON KIT - 195CC BORE KIT

Part Number: BRM-411-HCF-1911

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Estimated Ship Date: Sep 26, 2025 if ordered today

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88CC BIG BORE PISTON KIT

Part Number: BRM-411-HXR-5411

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Estimated Ship Date: Sep 26, 2025 if ordered today

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Rebuild Kit, Complete Bottom End, KTM, 250 XC, 250 XC-W, Kit

Part Number: HRI-CBK0011

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Estimated Ship Date: Sep 17, 2025 if ordered today

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COMPLETE BOTTOM END KIT

Part Number: HRI-CBK0012

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Estimated Ship Date: Sep 17, 2025 if ordered today

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BOTTOM END KIT

Part Number: HRI-CBK0013

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Estimated Ship Date: Sep 17, 2025 if ordered today

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Top End Engine Kits CYL WORKS BIG BORE KIT POLARIS CYL WORKS BIG BORE KIT POLARIS RZR 800

Part Number: CLW-61002-K01

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Estimated Ship Date: Sep 26, 2025 if ordered today

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Top End Engine Kits CYL WORKS BIG BORE KIT POLARIS CYL WORKS BIG BORE KIT POLARIS 1000 RZR XP '14-15

Part Number: CLW-61003-K01

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Estimated Ship Date: Sep 26, 2025 if ordered today

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CYLINDER, STANDARD BORE KIT POLARIS

Part Number: CLW-60004-K01

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Estimated Ship Date: Sep 26, 2025 if ordered today

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STD BORE KIT HI COMP

Part Number: CLW-10001-K01HC

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Estimated Ship Date: Sep 26, 2025 if ordered today

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