Engine Rotating Assemblies & Rebuild Kits

Pro LS 4340 Rotating Assembly, 383 Cid., 3.903 bore, 4.000 stroke, 58x, 6.125 rod, 5cc dish, 10.9:1 @ 65cc, 10.6:1 @ 68cc, File-Fit Rings, H Bearings

Part Number: SUM-R58409035

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Estimated Ship Date: Tuesday 9/2/2025

Engine Kit, Start Up, Crate Engine, GM, V8, SBC, Kit

Part Number: SUM-CSUMGMINS01

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Cannot be shipped Internationally

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Pro LS Piston and Rod Kit, 326 Cid., 3.785 bore, Standard 3.622 stroke, 6.098 rod, 7cc dish, 9.7:1 @ 61cc, 9.3:1 @ 65cc, File-Fit Rings

Part Number: SUM-PR367857

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Estimated Ship Date: Tuesday 9/2/2025

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Pro LS Piston and Rod Kit, 332 Cid., 3.820 bore, Standard 3.622 stroke, 6.098 rod, 2cc dome, 11:1 @ 61cc, 10.5:1 @ 65cc, File-Fit Rings

Part Number: SUM-PR368202

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Estimated Ship Date: Tuesday 9/2/2025

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Pro LS 4340 Piston and Rod Kit, 347 Cid., 3.903 bore, 3.622 stroke, 6.098 rod, 3cc dome, 11:1 @ 65cc, 10.6:1 @ 68cc, File-Fit Rings

Part Number: SUM-PR369033

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Estimated Ship Date: Tuesday 9/2/2025

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Pro LS Piston and Rod Kit, 371 Cid., 4.040 bore, 3.622 stroke, 6.125 rod, 2cc Flat Top, 10.9:1 @ 65cc, 10.3:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR36L0402

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Estimated Ship Date: Tuesday 9/2/2025

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Pro LS 4340 Piston and Rod Kit, 378 Cid., 4.075 bore, 3.622 stroke, 6.125 rod, 12cc dish, 9.9:1 @ 65cc, 9.4:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR36L08012

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Estimated Ship Date: Tuesday 9/2/2025

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Pro LS 4340 Piston and Rod Kit, 378 Cid., 4.080 bore, 3.622 stroke, 6.125 rod, 2cc dome, 11.6:1 @ 65cc, 10.9:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR36L0802

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Estimated Ship Date: Tuesday 9/2/2025

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Engine Rebuild, Hypereutectic Flat, 4 in. Bore, .020 in. Rod, .020 in. Main, Chevy, 350, Kit

Part Number: FEM-CSMHP762-022

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Estimated Ship Date: Tuesday 9/2/2025

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CYLINDER, STANDARD BORE KIT POLARIS

Part Number: CLW-60004-K01

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Estimated Ship Date: Sep 11, 2025 if ordered today

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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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CASE-GEAR REDUCTION

Part Number: PWD-555721

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Estimated Ship Date: Dec 1, 2025 if ordered today

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Cylinder Kit, Forged Piston, 2.00mm Oversize Bore, KTM, 13.50 to 1 Compression Ratio, Kit

Part Number: CLW-50001-K01

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Estimated Ship Date: Sep 23, 2025 if ordered today

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Cylinder Kit, Forged Piston, Standard Bore, for use on Honda®, 12.50 to 1 Compression Ratio, Kit

Part Number: CLW-10002-K01HC

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Estimated Ship Date: Sep 23, 2025 if ordered today

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Big Bore Cylinder Kit, Forged Piston, 100mm Bore, for use on Honda®, Motorcycle, Kit

Part Number: CLW-11002-K01

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Estimated Ship Date: Sep 23, 2025 if ordered today

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BIG BORE KIT

Part Number: CLW-11004-K01

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Estimated Ship Date: Sep 23, 2025 if ordered today

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CYL WORKS STD BORE KIT YZ450F

Part Number: CLW-20005-K02

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Estimated Ship Date: Sep 23, 2025 if ordered today

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Top End Engine Kits CYL WORKS STD BORE KIT YAMAHA CYL WORKS STD BORE KIT YAMAHA 700 GRIZZLY/VIKING '14-15

Part Number: CLW-20104-K02

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Estimated Ship Date: Sep 23, 2025 if ordered today

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Standard Bore Cylinder Kit, Forged Piston, 77mm Bore, Kawasaki, Motorcycle, Kit

Part Number: CLW-30004-K01

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Estimated Ship Date: Sep 23, 2025 if ordered today

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STANDARD BORE CYLINDER KIT

Part Number: CLW-30011-K01

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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-56-3907

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Estimated Ship Date: Sep 18, 2025 if ordered today

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QB FULL TOP END SET

Part Number: QDB-56-3912

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Estimated Ship Date: Sep 18, 2025 if ordered today

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QB FULL TOP END SET

Part Number: QDB-56-3914

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Estimated Ship Date: Sep 18, 2025 if ordered today

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