Engine Rotating Assemblies & Rebuild Kits

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

Part Number: SSY-910-0681

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Estimated Ship Date: Mar 24, 2026 if ordered today

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Engine Rotating Assembly, High Compression, Forged Crank, Forged Piston, H-Beam Rods, Chevy, Small Block, Kit

Part Number: ESP-35670000

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Estimated Ship Date: Apr 24, 2026 if ordered today

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Engine Rotating Assembly, High Compression, Forged Crank, Forged Piston, H-Beam Rods, Chevy, Small Block, Kit

Part Number: ESP-35670030

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S&S Cycle 2017+ M8 Models 4.320in Bore 550C Cam Power Pack - Black Granite w/ Highlight

Part Number: SSY-310-1235

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Estimated Ship Date: Mar 24, 2026 if ordered today

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Engine Rotating Assembly, High Compression, Forged Crank, Forged Piston, H-Beam Rods, Chevy, Big Block, Kit

Part Number: ESP-35700060

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Estimated Ship Date: May 6, 2026 if ordered today

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Engine Rotating Assembly, High Compression, Forged Crank, Forged Piston, H-Beam Rods, Chevy, Small Block, Kit

Part Number: ESP-35650030

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Estimated Ship Date: Apr 24, 2026 if ordered today

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S&S Cycle 2017+ M8 Models 4.320in Bore 550C Cam Power Pack - Black w/ Highlight

Part Number: SSY-310-1229

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Estimated Ship Date: Mar 24, 2026 if ordered today

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2017+ M8 Models 4.250in Bore 4.375in Stroke Cylinder Kit - Wrinkle Black w/o Highlight

Part Number: SSY-910-0681A

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Estimated Ship Date: Mar 25, 2026 if ordered today

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Engine Rotating Assembly, High Compression, Forged Crank, Forged Piston, H-Beam Rods, Chevy, Small Block, Kit

Part Number: ESP-35620030

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Estimated Ship Date: Apr 14, 2026 if ordered today

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Engine Rotating Assembly, High Compression, Forged Crank, Forged Pistons, H-Beam Rods, Chevy, Small Block, Kit

Part Number: ESP-B35650040

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Estimated Ship Date: Apr 24, 2026 if ordered today

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S&S Cycle 2017 M8 132in Power Pack w/ Chrome Pushrod Tubes & Cam Chain Tensioners - Blk w/ Highlight

Part Number: SSY-310-1231

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Estimated Ship Date: Mar 24, 2026 if ordered today

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2017 M8 Touring 4.250in Bore x 4.375in Stroke 107 To 124 Big Bore Kit

Part Number: SSY-910-0625A

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Estimated Ship Date: Mar 25, 2026 if ordered today

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Engine Rotating Assembly, High Compression, Forged Crank, Forged Piston, H-Beam Rods, Chevy, Big Block, Kit

Part Number: ESP-35700030

1.0 out of 5 stars ( 1 )

Estimated Ship Date: May 6, 2026 if ordered today

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Engine Rotating Assembly, High Compression, Forged Crank, Forged Piston, H-Beam Rods, Chevy, Small Block, Kit

Part Number: ESP-35660030

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Estimated Ship Date: Apr 24, 2026 if ordered today

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Cyl. Head Serv. Kit, Honda®, XR 650L, 1993-2018

Part Number: KPM-30-33490

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Estimated Ship Date: Mar 23, 2026 if ordered today

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S&S Cycle Royal Enfield 650 Twins 865cc Big Bore Kit

Part Number: SSY-920-0145

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Estimated Ship Date: Mar 24, 2026 if ordered today

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VERTEX COMPLETE ENGINE REBUILD KIT

Part Number: VPX-WR101-082

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Estimated Ship Date: Apr 6, 2026 if ordered today

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Top End Engine Kits CYL WORKS STD BORE POWER VALVE CYL WORKS STD BORE POWER VALVE YZ250 '99-15

Part Number: CLW-CW-PV-K01

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Estimated Ship Date: Apr 7, 2026 if ordered today

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Top End Engine Kits CYL WORKS BIG BORE POWER VALVE CYL WORKS BIG BORE POWER VALVE INCL SIDE VALVES YZ250 '99-1

Part Number: CLW-CW-PV-K02

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

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Repair Kit, Top End, 66.360mm Bore, 10.90 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NX-40025-BKA

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Estimated Ship Date: Apr 8, 2026 if ordered today

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TOP END KIT FORGED 76.95/STD YAM

Part Number: NTI-FX-40050K

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Estimated Ship Date: Apr 7, 2026 if ordered today

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Repair Kit, Top End, 66.370mm Bore, 10.90 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NX-40025-CKA

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Estimated Ship Date: Apr 8, 2026 if ordered today

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VERTEX TOP END PISTON KIT

Part Number: VPX-VTK22584B-2

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TOP END GASKET KIT, TOP END REPAIR KIT

Part Number: NTI-NX-70029-BK3

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Estimated Ship Date: Apr 7, 2026 if ordered today

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