Engines & Engine Parts at Summit Racing

Cylinder Works Standard Bore Cylinder Kits for 2005-2012 250 SX-F, 2007-2012 250 XC-F, 2006-2013 250 XCF-W - 422-50002K

Cylinder Kit, Forged Piston, 4.00mm Oversize Bore, KTM, 12.80 to 1 Compression Ratio, Kit

Part Number: CLW-50002-K01

Not Yet Reviewed

Estimated Ship Date: Mar 19, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 19, 2026 if ordered today

Summit Racing™ Pro LS Camshaft & Spring Kits SUM-8703-2-BHV

Camshaft Kit, Pro LS Single Plane, Hydraulic Roller Tappet, Advertised Duration 299/311, Lift .569/.569, Chevy GM, LS/LSX, Gen III/IV, Kit

Part Number: SUM-8703-2-BHV

Not Yet Reviewed

Cannot be shipped Internationally

...Loading

Cannot be shipped Internationally

Summit Racing™ Pro LS Camshaft & Spring Kits SUM-8706-2-DLSTL

Camshaft Kit, Pro LS Turbo, Hydraulic Roller Tappet, Advertised Duration 275/283, Lift .600/.575, Chevy GM, LS/LSX, Gen III/IV, Kit

Part Number: SUM-8706-2-DLSTL

Not Yet Reviewed

Cannot be shipped Internationally

...Loading

Cannot be shipped Internationally

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: Mar 20, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 20, 2026 if ordered today

Summit Racing™ Pro LS Camshaft & Spring Kits SUM-8724-1-BHV

SUM-8724 Level 1 Cam Kit, Beehive Springs, Seals, Pro LS Stage 4.5 Twin-Turbo Cam. 242/248 Dur., 116+5, .625/.605 Lift, 3-bolt, 5.3, 5.7, 6.0, 6.2

Part Number: SUM-8724-1-BHV

Not Yet Reviewed

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Namura Technologies Top-End Repair Kits for 1998-2004 TRX450FE FOURTRAX FOREMAN ES, TRX450FM FOURTRAX FOREMAN S - NA-10000K

Repair Kit, Top End, 89.960mm Bore, 8.50 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NA-10000K

Not Yet Reviewed

Estimated Ship Date: Mar 19, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 19, 2026 if ordered today

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: Mar 20, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 20, 2026 if ordered today

Summit Racing™ Pro LS Camshaft & Spring Kits SUM-8724-2-DLSTL

SUM-8724 Level 2 Cam Kit, Dual Springs, St. Ret. Pro LS Stage 4.5 Twin-Turbo Cam. 242/248 Dur., 116+5, .625/.605 Lift, 3-bolt, 5.3, 5.7, 6.0, 6.2

Part Number: SUM-8724-2-DLSTL

Not Yet Reviewed

Cannot be shipped Internationally

...Loading

Cannot be shipped Internationally

Summit Racing™ Pro LS Camshaft & Spring Kits SUM-8709-2-DLSTL

Camshaft Kit, Pro LS, Hydraulic Roller Tappet, Advertised Duration 288/296, Lift .625/.605, Chevy GM, LS/LSX, Gen III/IV, Kit

Part Number: SUM-8709-2-DLSTL

Not Yet Reviewed

Cannot be shipped Internationally

...Loading

Cannot be shipped Internationally

Namura Technologies Top-End Repair Kits NA-40005-2K

Repair Kit, Top End, 83.450mm Bore, 9.50 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40005-2K

Not Yet Reviewed

Estimated Ship Date: Mar 19, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 19, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 1996-1998 LT-4WDX KING QUAD 250, 1999-2002 LT-F300F KINGQUAD 4X4 - NA-30001K

Repair Kit, Top End, 68.47mm Bore, 9.00 to 1 Compression Ratio, Suzuki, Kit

Part Number: NTI-NA-30001K

Not Yet Reviewed

Estimated Ship Date: Mar 20, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 20, 2026 if ordered today

Summit Racing™ Pro LS Camshaft & Spring Kits SUM-8703-2-DLSTL

Camshaft Kit, Pro LS Single Plane, Hydraulic Roller Tappet, Advertised Duration 299/311, Lift .569/.569, Chevy GM, LS/LSX, Gen III/IV, Kit

Part Number: SUM-8703-2-DLSTL

Not Yet Reviewed

Cannot be shipped Internationally

...Loading

Cannot be shipped Internationally

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

BIG BORE KIT

Part Number: CLW-11004-K01

Not Yet Reviewed

Estimated Ship Date: Mar 19, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 19, 2026 if ordered today

Summit Racing™ Pro LS Camshaft & Spring Kits SUM-8708-2-BHV

Camshaft Kit, Pro LS, Hydraulic Roller Tappet, Advertised Duration 280/292, Lift .600/.600, Chevy GM, LS/LSX, Gen III/IV, Each

Part Number: SUM-8708-2-BHV

5.0 out of 5 stars ( 2 )

Cannot be shipped Internationally

...Loading

Cannot be shipped Internationally

Hot Rods Complete Bottom End Rebuild Kits for 1999-2004 TRX400EX SPORTRAX - CBK0080

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

Part Number: HRI-CBK0080

Not Yet Reviewed

Estimated Ship Date: Mar 11, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 11, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 2006-2014 TRX450ER ELECTRIC START, TRX450R - NA-10046K

Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-10046K

Not Yet Reviewed

Estimated Ship Date: Mar 19, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 19, 2026 if ordered today

Hot Rods Complete Bottom End Rebuild Kits CBK0041

Rebuild Kit, Complete Bottom End, Yamaha, YFS200 Blaster, Kit

Part Number: HRI-CBK0041

Not Yet Reviewed

Estimated Ship Date: Mar 10, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 10, 2026 if ordered today

S&S Cycle 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: Mar 19, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 19, 2026 if ordered today

Cylinder Works Big Bore Cylinder Kits for 2004-2008 KX250F, 2004-2006 RMZ250 - 422-31001K

Big Bore Cylinder Kit, Forged Piston, 80mm Bore, Kawasaki, Suzuki, Motorcycle, Kit

Part Number: CLW-31001-K01

Not Yet Reviewed

Estimated Ship Date: Mar 20, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 20, 2026 if ordered today

Cylinder Works Standard Bore Cylinder Kits for 2009-2012 KX450F - 422-30011K

STANDARD BORE CYLINDER KIT

Part Number: CLW-30011-K01

Not Yet Reviewed

Estimated Ship Date: Mar 20, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 20, 2026 if ordered today

Namura Technologies Top-End Repair Kits NX-70001K

Repair Kit, Top End, 39.460mm Bore, 8.50 to 1 Compression Ratio, KTM, Kit

Part Number: NTI-NX-70001K

Not Yet Reviewed

Estimated Ship Date: Mar 19, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 19, 2026 if ordered today

Hot Rods Complete Bottom End Rebuild Kits for 2000-2005 KX65, 2003-2005 RM65 - CBK0048

Rebuild Kit, Complete Bottom End, Kawasaki, Suzuki, Kit

Part Number: HRI-CBK0048

Not Yet Reviewed

Estimated Ship Date: Mar 11, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 11, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 1997-2001 CR250R - NX-10025-2K

TOP END REPAIR KIT

Part Number: NTI-NX-10025-2K

Not Yet Reviewed

Estimated Ship Date: Mar 19, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 19, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 1998-2000 KX80 - NX-20080-CK1

TOP END REPAIR KIT

Part Number: NTI-NX-20080-CK1

Not Yet Reviewed

Estimated Ship Date: Mar 19, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 19, 2026 if ordered today

Hot Rods Complete Bottom End Rebuild Kits for 2014-2020 YFZ450R, YFZ450R SE - HR00124

BOTTOM END KIT Yamaha

Part Number: HRI-HR00124

Not Yet Reviewed

Estimated Ship Date: Mar 11, 2026 if ordered today

...Loading

Estimated Ship Date: Mar 11, 2026 if ordered today