Engines & Engine Parts at Summit Racing

Namura Technologies Top-End Repair Kits for 1992-1999 CR125R - NX-10000-BK

Repair Kit, Top End, 53.950mm Bore, 8.80 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NX-10000-BK

Not Yet Reviewed

Estimated Ship Date: Mar 17, 2026 if ordered today

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Estimated Ship Date: Mar 17, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits for 1996-2003 XL1200C SPORTSTER 1200 CUSTOM, XL1200S SPORTSTER 1200 SPORT, 1988-2003 XLH1200 - KB264.010

Piston and Ring Kit, Hypereutectic, 3.508 in. Bore, Harley-Davidson®, 9.10;1 Compression Ratio, Kit

Part Number: UEM-KB264-010

Not Yet Reviewed

Estimated Ship Date: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits for 1996-2003 XL1200C SPORTSTER 1200 CUSTOM, XL1200S SPORTSTER 1200 SPORT, 1988-2003 XLH1200 - KB264.030

Piston and Ring Kit, Hypereutectic, 3.528 in. Bore, Harley-Davidson®, 9.10;1 Compression Ratio, Kit

Part Number: UEM-KB264-030

Not Yet Reviewed

Estimated Ship Date: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB266.030

Piston and Ring Kit, Hypereutectic, 3.528 in. Bore, Harley-Davidson®, 10.50;1 Compression Ratio, Kit

Part Number: UEM-KB266-030

Not Yet Reviewed

Estimated Ship Date: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 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-50001-6K

Repair Kit, Top End, 81.45mm Bore, 6.00 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50001-6K

Not Yet Reviewed

Estimated Ship Date: Mar 17, 2026 if ordered today

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Estimated Ship Date: Mar 17, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-30050K

Repair Kit, Top End, 87.45mm Bore, 10.20 to 1 Compression Ratio, Arctic Cat, Suzuki, Kit

Part Number: NTI-NA-30050K

Not Yet Reviewed

Estimated Ship Date: Mar 17, 2026 if ordered today

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Estimated Ship Date: Mar 17, 2026 if ordered today

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: Mar 17, 2026 if ordered today

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Estimated Ship Date: Mar 17, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 2005-2021 YZ125, 2020-2022 YZ125X - NX-40009K

Repair Kit, Top End, 53.950mm Bore, 10.70 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NX-40009K

Not Yet Reviewed

Estimated Ship Date: Mar 17, 2026 if ordered today

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Estimated Ship Date: Mar 17, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 1999-2008 TRX400EX SPORTRAX, 2009-2014 TRX400X, 1996-2004 XR400R - NA-10003-2K

Repair Kit, Top End, 85.470mm Bore, 11.00 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NA-10003-2K

Not Yet Reviewed

Estimated Ship Date: Mar 17, 2026 if ordered today

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Estimated Ship Date: Mar 17, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 2003 CR125R - NX-10000K2

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

Part Number: NTI-NX-10000K2

Not Yet Reviewed

Estimated Ship Date: Mar 17, 2026 if ordered today

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Estimated Ship Date: Mar 17, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-40010K

Repair Kit, Top End, 99.970mm Bore, 9.20 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40010K

Not Yet Reviewed

Estimated Ship Date: Mar 17, 2026 if ordered today

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Estimated Ship Date: Mar 17, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-50002-6K

Repair Kit, Top End, 84.44mm Bore, 6.90 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50002-6K

Not Yet Reviewed

Estimated Ship Date: Mar 17, 2026 if ordered today

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Estimated Ship Date: Mar 17, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-30002-BK

Repair Kit, Top End, 89.97mm Bore, 11.30 to 1 Compression Ratio, Arctic Cat, Kawasaki, Suzuki, Kit

Part Number: NTI-NA-30002-BK

Not Yet Reviewed

Estimated Ship Date: Mar 17, 2026 if ordered today

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Estimated Ship Date: Mar 17, 2026 if ordered today

COMP Cams Trunnion-Upgraded OEM Rocker Arms for GM LS 1478-1

Rocker Arms, Upgraded OEM Rocker Arms for GM LS, Roller Fulcrum, Steel, Black Oxide, 1.7 Ratio, Chevrolet, 6.2L, Each

Part Number: CCA-1478-1

Not Yet Reviewed

Estimated Ship Date: Apr 16, 2026 if ordered today

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Estimated Ship Date: Apr 16, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB904C.010

Piston and Ring Kit, Forged, 3.885 in. Bore, Harley-Davidson®, 9.25:1 Compression Ratio, Kit

Part Number: UEM-KB904C-010

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

KB Performance V-Twin Piston and Ring Kits KB348.020

Piston and Ring Kit, Hypereutectic, 3.895 in. Bore, Harley-Davidson®, 9.30:1 Compression Ratio, Kit

Part Number: UEM-KB348-020

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

March Performance Ultra Series Chevy Small Block Serpentine Kits 20461

Pulley Kit, Serpentine, Performance Ratio, Aluminum, Clear Powdercoated, Chevy, Small Block, Kit

Part Number: MCH-20461

Not Yet Reviewed

Estimated Ship Date: Apr 6, 2026 if ordered today

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Estimated Ship Date: Apr 6, 2026 if ordered today

Scorpion Off-Road Series Rocker Arms SCP0503-1

Scorpion Off-Road Series Rocker Arms SCP0503-1

Rocker Arms, Off-Road Series, Full Roller, 1.7 Ratio, Adjustable, Aluminum, 5/16 in. Pedestal, Jeep, L6, Each

Part Number: SCC-0503-1

Not Yet Reviewed

Estimated Ship Date: Mar 27, 2026 if ordered today

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Estimated Ship Date: Mar 27, 2026 if ordered today

Scorpion Endurance Series Rocker Arms SCP3082-1

Rocker Arms, Endurance Series, Stud Mount, Full Roller, Fits 7/16 in. Stud. Aluminum, 1.5 Ratio, Ford, Each

Part Number: SCC-SCP3082-1

Not Yet Reviewed

Estimated Ship Date: Mar 27, 2026 if ordered today

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Estimated Ship Date: Mar 27, 2026 if ordered today

Scorpion Endurance Series Rocker Arms SCP3096-1

Rocker Arms, Endurance Series, Pedestal Mount, Full Roller, Aluminum, 1.7 Ratio, Oldsmobile, V8, Each

Part Number: SCC-SCP3096-1

Not Yet Reviewed

Estimated Ship Date: Mar 27, 2026 if ordered today

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Estimated Ship Date: Mar 27, 2026 if ordered today

Scorpion Endurance Series Rocker Arms SCP3222-1

Rocker Arms, Endurance Series, Pedestal Mount, Full Roller, Aluminum, 1.72 Ratio, Ford, Small Block, Each

Part Number: SCC-SCP3222-1

Not Yet Reviewed

Estimated Ship Date: Mar 27, 2026 if ordered today

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Estimated Ship Date: Mar 27, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB910C.010

Piston and Ring Kit, Forged, 4.135 in. Bore, Harley-Davidson®, 9.50:1 Compression Ratio, Kit

Part Number: UEM-KB910C-010

Not Yet Reviewed

Estimated Ship Date: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB924C.010

Piston and Ring Kit, Forged, 3.508 in. Bore, Harley-Davidson®, 10.00:1 Compression Ratio, Kit

Part Number: UEM-KB924C-010

Not Yet Reviewed

Estimated Ship Date: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB925C.040

Piston and Ring Kit, Forged, 3.538 in. Bore, Harley-Davidson®, 10.50:1 Compression Ratio, Kit

Part Number: UEM-KB925C-040

Not Yet Reviewed

Estimated Ship Date: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB263.070

Piston and Ring Kit, Hypereutectic, 3.497 in. Bore, Harley-Davidson®, 7.80;1 Compression Ratio, Kit

Part Number: UEM-KB263-070

Not Yet Reviewed

Estimated Ship Date: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 2026 if ordered today