2009 Engine Kits & Rotating Assemblies Engines & Components - Free Shipping on Orders Over $109 at Summit Racing

S&S Cycle 4 in. Sidewinder Big Bore Kits 910-0651

Top End Engine Kit, Sidewinder Big Bore, Black Wrinkle Finish, 4 in., Forged Piston, Harley-Davidson®, Kit

Part Number: SSY-910-0651

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Summit Racing™ Pro LS Piston and Rod Kits SUM-PR400756

Pro LS 4340 Piston and Rod Kit, 417 Cid., 4.075 bore, 4.000 stroke, 6.125 rod, 6cc dish, 11.5:1 @ 65cc, 11:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR400756

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Summit Racing™ Pro LS Piston and Rod Kits SUM-PR400806

Pro LS 4340 Piston and Rod Kit, 417 Cid., 4.080 bore, 4.000 stroke, 6.125 rod,, File-Fit Rings 6cc dish, 11.6:1 @ 65cc, 11:1 @ 70cc

Part Number: SUM-PR400806

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Summit Racing™ Pro LS Piston and Rod Kits SUM-PR3604012

Pro LS 4340 Piston and Rod Kit, 371 Cid., 4.040 bore, 3.622 stroke, 6.098 rod, 12cc dish, 9.8:1 @ 65cc, 9.3:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR3604012

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Summit Racing™ Pro LS Piston and Rod Kits SUM-PR400408

Pro LS 4340 Piston and Rod Kit, 410 Cid., 4.040 bore, 4.000 stroke, 6.125 rod, 8cc dish, 11.2:1 @ 65cc, 10.6:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR400408

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Summit Racing™ Pro LS Piston and Rod Kits SUM-PR407805

Pro LS 4340 Piston and Rod Kit, 359 Cid., 3.780 bore, 4.000 stroke, 6.125 rod, 5cc dish, 10.9:1 @ 61cc, 10.4:1 @ 65cc, File-Fit Rings

Part Number: SUM-PR407805

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Estimated Ship Date: Tomorrow

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Summit Racing™ Pro LS Piston and Rod Kits SUM-PR367857

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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Summit Racing™ Pro LS Piston and Rod Kits SUM-PR408105

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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Estimated Ship Date: Tomorrow

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Summit Racing™ Pro LS Piston and Rod Kits SUM-PR36L8207

Pro LS Piston and Rod Kit, 332 Cid., 3.820 bore, Standard 3.622 stroke, 6.125 rod, 7cc dish, 9.9:1 @ 61cc, 9.4:1 @ 65cc, File-Fit Rings

Part Number: SUM-PR36L8207

Not Yet Reviewed

Estimated Ship Date: May 12, 2026 if ordered today

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Estimated Ship Date: May 12, 2026 if ordered today

Summit Racing™ Pro LS Piston and Rod Kits SUM-PR368202

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

Not Yet Reviewed

Estimated Ship Date: Apr 28, 2026 if ordered today

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Estimated Ship Date: Apr 28, 2026 if ordered today

S&S Cycle 107 in. Big Bore Kits 910-0500

Big Bore Kit, 107 in., Drop-In, 3.937 in. Bore, Wrinkle Black Cylinders with Highlighted Fins, Harley-Davidson®, Kit

Part Number: SSY-910-0500

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Vertex Complete Engine Rebuild Kits for 2005-2011 TRX500FM FOURTRAX FOREMAN 4X4, 2005-2006 TRX500TM FOURTRAX FOREMAN - WR00037

Complete Engine Rebuild Kit, Stock Bore, Stock Stroke, 8.50 to 1 Compression, for use on Honda®, Kit

Part Number: VPX-WR00037

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Cylinder Works Big Bore Cylinder Kits for 2008-2009 TRX700XX - 422-11009K

Cylinder Kit, Forged Piston, 3.00mm Oversize Bore, for use on Honda®, 10.50 to 1 Compression Ratio, Kit

Part Number: CLW-11009-K01

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 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 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 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 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 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 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Vertex Complete Engine Rebuild Kits for 2003-2012 85 SX (17/14), 2005-2010 85 SX (19/16), 2012 85 SXS - WR101-056

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

Part Number: VPX-WR101-056

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Hot Rods Complete Bottom End Rebuild Kits CBK0106

Rebuild Kit, Complete Bottom End, for use on Honda®, TRX450R, TRX450ER, Kit

Part Number: HRI-CBK0106

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 2002-2023 RM85, 2003-2012 RM85L - NX-30085-CK

Repair Kit, Top End, 47.950mm Bore, 9.50 to 1 Compression Ratio, Suzuki, Kit

Part Number: NTI-NX-30085-CK

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Cylinder Works Standard Bore Cylinder Kits for 2004-2013 YFZ450, 2006-2007 YFZ450 BILL BALANCE EDITION, 2007-2008 YFZ450 SE - 422-20001K

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

Part Number: CLW-20001-K01

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Vertex Top-End Piston Kits for 2008-2009 CRF250R - VTKTC23444B

TOP END KIT FHC WITH CAM CHAIN

Part Number: VPX-VTKTC23444B

Not Yet Reviewed

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Vertex Top-End Piston Kits for 2008-2013 YZ250F - VTKTC23391B

TOP END KIT FR WITH CAM CHAIN

Part Number: VPX-VTKTC23391B

Not Yet Reviewed

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Vertex Top-End Piston Kits for 2008-2009 CRF250R - VTKTC23444A

TOP END KIT FHC WITH CAM CHAIN

Part Number: VPX-VTKTC23444A

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Vertex Top-End Piston Kits for 2003-2005 200 EXC, 2006-2009 200 XC, 2006-2016 200 XC-W - VTK22926C-1

VERTEX TOP END PISTON KIT

Part Number: VPX-VTK22926C-1

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

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 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today