Engine Rotating Assemblies & Rebuild Kits

Namura Technologies Top-End Repair Kits for 1981-2026 PW50 - NX-40005K

Repair Kit, Top End, 40.000mm Bore, 6.00 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NX-40005K

Not Yet Reviewed

Estimated Ship Date: Apr 9, 2026 if ordered today

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Estimated Ship Date: Apr 9, 2026 if ordered today

Cylinder Works Standard Bore Cylinder Kits for 2008-2009 TRX700XX - 422-10009K

Cylinder Kit, Forged Piston, Standard Bore, for use on Honda®, 10.00 to 1 Compression Ratio, Kit

Part Number: CLW-10009-K01

Not Yet Reviewed

Estimated Ship Date: Apr 9, 2026 if ordered today

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Estimated Ship Date: Apr 9, 2026 if ordered today

Cylinder Works Big Bore Cylinder Kits for 2004-2013 YFZ450, 2006-2007 YFZ450 BILL BALANCE EDITION, 2007-2008 YFZ450 SE - 422-23001K

Cylinder Kit, Forged Aluminum, 3.00mm Oversize Bore, Yamaha, YFZ450, Set

Part Number: CLW-23001-K01

Not Yet Reviewed

Estimated Ship Date: Apr 8, 2026 if ordered today

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Estimated Ship Date: Apr 8, 2026 if ordered today

Cylinder Works Big Bore Cylinder Kits for 2007-2009 CRF150R, CRF150R EXPERT - 422-11004K

BIG BORE KIT

Part Number: CLW-11004-K01

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Estimated Ship Date: Apr 8, 2026 if ordered today

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Estimated Ship Date: Apr 8, 2026 if ordered today

Cylinder Works Standard Bore Cylinder Kits for 2006-2009 LT-R450 QUADRACER - 422-40002K

Cylinder Kit, Forged Aluminum, Standard Bore, Suzuki, Set

Part Number: CLW-40002-K01

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 9, 2026 if ordered today

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Estimated Ship Date: Apr 9, 2026 if ordered today

Manley Rotating Assemblies 29632R

ROTATING ASSEMBLY KIT-BBC 632 4.750/4.600 43cc D

Part Number: MAN-29632R

Not Yet Reviewed

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Scat Engine Rotating Assemblies 1-94602BI

Street Performance, Series 9000 Rotating Assembly

Part Number: SCA-194602BI

Not Yet Reviewed

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Manley Rotating Assemblies 290030H

KIT-SBC 383 3.750/4.030

Part Number: MAN-290030H

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Manley Rotating Assemblies 290030R

KIT-SBC 383 3.750/4.030

Part Number: MAN-290030R

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Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Summit Racing™ Pro LS 5.7L Rotating Assemblies SUM-R58369033

Pro LS 4340 Rotating Assembly, 347 Cid., 3.903 bore, 3.622 stroke, 58x, 6.098 rod, 3cc dome, 11:1 @ 65cc, 10.6:1 @ 68cc, File-Fit Rings, H Bearings

Part Number: SUM-R58369033

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Eagle Specialty Products Engine Rotating Kits 334540016100

4.000" stroke, internal balance, billet 4340 steel, center-counterweighted Chevrolet Gen III "LS", no reluctor

Part Number: ESP-334540016100

Not Yet Reviewed

Estimated Ship Date: May 8, 2026 if ordered today

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Estimated Ship Date: May 8, 2026 if ordered today

Summit Racing™ Pro LS 5.7L Rotating Assemblies SUM-R24368983

Pro LS 4340 Rotating Assembly, 346 Cid., 3.898 bore, 3.622 stroke, 24X, 6.098 rod, 3cc dome, 11:1 @ 65cc, 10.6:1 @ 68cc, File-Fit ring, H Bearings

Part Number: SUM-R24368983

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Hot Rods Complete Bottom End Rebuild Kits CBK0135

Rebuild Kit, Complete Bottom End, Yamaha, YZ250, Kit

Part Number: HRI-CBK0135

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Cylinder Works Standard Bore Cylinder Kits for 2009-2017 65 SX - 422-50005K

STD BORE KIT

Part Number: CLW-50005-K01

Not Yet Reviewed

Estimated Ship Date: Apr 8, 2026 if ordered today

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Estimated Ship Date: Apr 8, 2026 if ordered today

Hot Rods Complete Bottom End Rebuild Kits CBK0014

Gasket Kit BOTTOM END KIT BOTTOM END KIT

Part Number: HRI-CBK0014

Not Yet Reviewed

Estimated Ship Date: Mar 31, 2026 if ordered today

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Estimated Ship Date: Mar 31, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 1990-1993 TRAIL BOSS 350L 4X4, TRAIL BOSS 350L 2X4, 1993 BIG BOSS 350L 6X6 - NA-50001K

TOP END REPAIR KIT

Part Number: NTI-NA-50001K

Not Yet Reviewed

Estimated Ship Date: Apr 7, 2026 if ordered today

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Estimated Ship Date: Apr 7, 2026 if ordered today

Cylinder Works Big Bore Cylinder Kits for 2011-2012 350 SX-F, 2012 350 XC-F - 422-50001K

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

Part Number: CLW-50001-K01

Not Yet Reviewed

Estimated Ship Date: Apr 9, 2026 if ordered today

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Estimated Ship Date: Apr 9, 2026 if ordered today

Cylinder Works Standard Bore Cylinder Kits for 2003-2006 WR450F, 2003-2005 YZ450F - 422-20001K2

Cylinder Kit, Forged Piston, Standard Bore, Gaskets, Rings, Yamaha, Motorcycle, Kit

Part Number: CLW-20001-K02

Not Yet Reviewed

Estimated Ship Date: Apr 9, 2026 if ordered today

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Estimated Ship Date: Apr 9, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 1991-2001 RM80 - NX-30080K

TOP END REPAIR KIT

Part Number: NTI-NX-30080K

Not Yet Reviewed

Estimated Ship Date: Apr 9, 2026 if ordered today

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Estimated Ship Date: Apr 9, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-50019-2K

Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-50019-2K

Not Yet Reviewed

Estimated Ship Date: Apr 8, 2026 if ordered today

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Estimated Ship Date: Apr 8, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 1998-2000 KX125 - NX-20000-BK

Piston, TOP END REPAIR KIT

Part Number: NTI-NX-20000-BK

Not Yet Reviewed

Estimated Ship Date: Apr 9, 2026 if ordered today

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Estimated Ship Date: Apr 9, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-20005-2K

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

Part Number: NTI-NA-20005-2K

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Namura Technologies Top-End Repair Kits for 1991-2001 RM80 - NX-30080-CK

TOP END REPAIR KIT

Part Number: NTI-NX-30080-CK

Not Yet Reviewed

Estimated Ship Date: Apr 8, 2026 if ordered today

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Estimated Ship Date: Apr 8, 2026 if ordered today

S&S Cycle M8 124 in. Big Bore Kits 910-0625

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

Not Yet Reviewed

Estimated Ship Date: Apr 7, 2026 if ordered today

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Estimated Ship Date: Apr 7, 2026 if ordered today

Summit Racing™ Pro LS Piston and Rod Kits SUM-PR4082012

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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Estimated Ship Date: Today

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