Engine Kits & Rotating Assemblies

Pro LS 4340 Piston and Rod Kit, 364 Cid., 3.810 bore, 4.000 stroke, 6.125 rod, 5cc dish, 11:1 @ 61cc, 10.5:1 @ 65cc, File-Fit Rings

Part Number: SUM-PR408105

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Pro LS 4340 Piston and Rod Kit, 367 Cid., 3.820 bore, 4.000 stroke, 6.125 rod, 12cc dish, 10:2 @ 61cc, 9.8:1 @ 65cc, File-Fit Rings

Part Number: SUM-PR4082012

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Pro LS 4340 Piston and Rod Kit, 367 Cid., 3.820 bore, 4.000 stroke, 6.125 rod, 5cc dish, 11:1 @ 61cc, 10.5:1 @ 65cc, File-Fit Rings

Part Number: SUM-PR408205

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Engine Rotating Kits, Pro LS Crank and Rod Kits, Forged 4340 Steel, 6.125 in. Connecting Rod Length, 3.622 in. Stroke, Chevy, 5.3L, 5.7L, 6.0L, Kit

Part Number: SUM-CR3624125

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Pro LS 4340 Piston and Rod Kit, 377 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-PR36L07512

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Pro LS 4340 Piston and Rod Kit, 402 Cid., 4.000 bore, 4.000 stroke, 6.125 rod, 8cc dish, 11:1 @ 65cc, 10.4:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR400008

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Top End Engine Kit, M8 124 in. Big Bore, Wrinkle Black Finish with Highlighted Fins, 4.250 in., Forged Piston, Harley-Davidson®, Kit

Part Number: SSY-910-0625

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Estimated Ship Date: Nov 24, 2025 if ordered today

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BIG BORE KIT

Part Number: CLW-61002-K02

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Estimated Ship Date: Nov 24, 2025 if ordered today

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BOTTOM END KIT Polaris

Part Number: HRI-HR00106

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Estimated Ship Date: Nov 13, 2025 if ordered today

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Gasket Kit BOTTOM END KIT BOTTOM END KIT

Part Number: HRI-CBK0178

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Estimated Ship Date: Nov 13, 2025 if ordered today

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BOTTOM END KIT Polaris

Part Number: HRI-HR00111

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Estimated Ship Date: Nov 13, 2025 if ordered today

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BOTTOM END KIT Polaris

Part Number: HRI-HR00116

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Estimated Ship Date: Nov 13, 2025 if ordered today

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BOTTOM END KIT Polaris

Part Number: HRI-HR00122

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Estimated Ship Date: Nov 13, 2025 if ordered today

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BOTTOM END KIT Polaris

Part Number: HRI-HR00123

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S&S Cycle 86-19 Sportster Models 883 to 1200cc Conversion Kit - Wrinkle Black

Part Number: SSY-910-0687

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Estimated Ship Date: Nov 24, 2025 if ordered today

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PERFORMANCE, 131" KIT - BLACK FINS M8

Part Number: SSY-910-0763

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Estimated Ship Date: Nov 24, 2025 if ordered today

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Complete Engine Rebuild Kit, Stock Bore, Stock Stroke, Yamaha, Kit

Part Number: VPX-WR101-077

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Estimated Ship Date: Nov 24, 2025 if ordered today

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VERTEX COMPLETE ENGINE REBUILD KIT

Part Number: VPX-WR101-141

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Estimated Ship Date: Nov 24, 2025 if ordered today

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Complete Engine Rebuild Kit, Stock Bore, Stock Stroke, 12.80 to 1 Compression, KTM, Kit

Part Number: VPX-WR00030

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Estimated Ship Date: Nov 24, 2025 if ordered today

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Complete Engine Rebuild Kit, Stock Bore, Stock Stroke, 10.20 to 1 Compression, Polaris, Kit

Part Number: VPX-WR00063

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Estimated Ship Date: Nov 24, 2025 if ordered today

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Complete Engine Rebuild Kit, Stock Bore, Stock Stroke, 12.80 to 1 Compression, KTM, Kit

Part Number: VPX-WR101-162

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Estimated Ship Date: Nov 24, 2025 if ordered today

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Complete Engine Rebuild Kit, Stock Bore, Stock Stroke, 8.80 to 1 Compression, Kawasaki, Kit

Part Number: VPX-WR101-164

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Estimated Ship Date: Nov 24, 2025 if ordered today

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VERTEX COMPLETE ENGINE REBUILD KIT

Part Number: VPX-WR101-166

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Estimated Ship Date: Nov 24, 2025 if ordered today

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Complete Engine Rebuild Kit, 0.50mm Over Bore, Stock Stroke, 9.10 to 1 Compression, Yamaha, Kit

Part Number: VPX-WR101-211

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Estimated Ship Date: Nov 24, 2025 if ordered today

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BOTTOM END KIT Polaris

Part Number: HRI-HR00120

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Estimated Ship Date: Nov 13, 2025 if ordered today

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