Engines & Engine Parts at Summit Racing

Namura Technologies Top-End Repair Kits for 2002-2004 YZ125 - NX-40001-BK

Repair Kit, Top End, 53.950mm Bore, 10.80 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NX-40001-BK

Not Yet Reviewed

Estimated Ship Date: May 20, 2026 if ordered today

...Loading

Estimated Ship Date: May 20, 2026 if ordered today

Vertex Top-End Piston Kits for 1998-2013 KX100, 2003 RM100 - VTK23614A

VERTEX TOP END KITS

Part Number: VPX-VTK23614A

Not Yet Reviewed

Estimated Ship Date: May 20, 2026 if ordered today

...Loading

Estimated Ship Date: May 20, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-10012-6K

Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-10012-6K

Not Yet Reviewed

Estimated Ship Date: May 20, 2026 if ordered today

...Loading

Estimated Ship Date: May 20, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 1986 SRX600, 1984-1986 XT600, 1998-2001 YFM600FW GRIZZLY 4X4 - NA-40007-2K

Repair Kit, Top End, 95.500mm Bore, 8.50 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40007-2K

Not Yet Reviewed

Estimated Ship Date: May 20, 2026 if ordered today

...Loading

Estimated Ship Date: May 20, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 2000-2002 CR125R - NX-10000K1

Repair Kit, Top End, 53.940mm Bore, 8.80 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NX-10000K1

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

...Loading

Estimated Ship Date: May 18, 2026 if ordered today

Vertex Top-End Piston Kits VTK23375B-3

VERTEX TOP END PISTON KIT

Part Number: VPX-VTK23375B-3

Not Yet Reviewed

Estimated Ship Date: May 20, 2026 if ordered today

...Loading

Estimated Ship Date: May 20, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 2001-2003 RM125 - NX-30004-CK

Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NX-30004-CK

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

...Loading

Estimated Ship Date: May 19, 2026 if ordered today

Summit Racing™ Classic SBC Cam and Lifter Kit SUM-K1103

Cam and Lifters, Hydraulic Flat Tappet, Advertised Duration 288/298, Lift .444/.466, Chevy, Small Block, Kit

Part Number: SUM-K1103

4.58 out of 5 stars ( 125 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Namura Technologies Top-End Repair Kits for 1993-2008 TRX300EX SPORTRAX, 2009 TRX300X - NA-10005K

Repair Kit, Top End, 73.95mm Bore, 8.90 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NA-10005K

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

...Loading

Estimated Ship Date: May 18, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 1993-2003 KX250 - NX-20025K

Repair Kit, Top End, 66.350mm Bore, 8.60 to 1 Compression Ratio, Kawasaki, Kit

Part Number: NTI-NX-20025K

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

...Loading

Estimated Ship Date: May 18, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 2002-2018 YZ85 - NX-40085-CK

TOP END REPAIR KIT

Part Number: NTI-NX-40085-CK

Not Yet Reviewed

Estimated Ship Date: May 20, 2026 if ordered today

...Loading

Estimated Ship Date: May 20, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 1989-2004 YFA-1 BREEZE125, 2004-2013 YFM125 GRIZZLY - NA-40019-4K

TOP END REPAIR KIT

Part Number: NTI-NA-40019-4K

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

...Loading

Estimated Ship Date: May 18, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 1989-2004 YFA-1 BREEZE125, 2004-2013 YFM125 GRIZZLY - NA-40019-2K

TOP END REPAIR KIT

Part Number: NTI-NA-40019-2K

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

...Loading

Estimated Ship Date: May 18, 2026 if ordered today

Vertex Top-End Piston Kits VTK23630B

Top-End Piston Kit, Cast Aluminum, 66.400mm Bore, KTM, Kit

Part Number: VPX-VTK23630B

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

...Loading

Estimated Ship Date: May 18, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 1997-2001 TRX250TM FOURTRAX RECON - NA-10025K

TOP END REPAIR KIT

Part Number: NTI-NA-10025K

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

...Loading

Estimated Ship Date: May 18, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-40015-4K

Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-40015-4K

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

...Loading

Estimated Ship Date: May 18, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-50004-4K

Repair Kit, Top End, 92.97mm Bore, 10.20 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50004-4K

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

...Loading

Estimated Ship Date: May 19, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 1988-2002 KLF220 BAYOU - NA-20001-6K

TOP END REPAIR KIT

Part Number: NTI-NA-20001-6K

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

...Loading

Estimated Ship Date: May 19, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-50011-4K

Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-50011-4K

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

...Loading

Estimated Ship Date: May 19, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-80010K

TOP END KIT TWIN CYLINDER 90.96/STD CAN

Part Number: NTI-NA-80010K

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

...Loading

Estimated Ship Date: May 19, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 1978-2006 JR50, 2003-2006 KDX50, 1984-1987 LT50 QUADRUNNER - 185-3050

TOP END GASKET KIT, TOP END REPAIR KIT

Part Number: NTI-NX-30050K

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

...Loading

Estimated Ship Date: May 19, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-10027-1K

Repair Kit, Top End, 68.70mm Bore, 9.50 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NA-10027-1K

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

...Loading

Estimated Ship Date: May 19, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 2007-2008 YFM400 GRIZZLY 4X4 AUTO, 2000-2006 YFM400F KODIAK 4X4 - NA-40008K

Repair Kit, Top End, 84.420mm Bore, 9.10 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40008K

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

...Loading

Estimated Ship Date: May 19, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-40010-2K

Repair Kit, Top End, 100.470mm Bore, 9.20 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40010-2K

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

...Loading

Estimated Ship Date: May 19, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-10008-4K1

Repair Kit, Top End, 92.96mm Bore, 8.50 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NA-10008-4K1

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

...Loading

Estimated Ship Date: May 19, 2026 if ordered today