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KSES now offers complete engine rebuilding & is currently accepting engine work in person and by mail. Click here to learn more about shipping. 

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At Kuperus Small Engine we offer a wide variety of rebuilds and customizations for all of your performance needs. All of our builds are completed with a high level of expertise, precision, and quality that often goes overlooked by other rebuilding centers. We take great pride in our rebuilds and hope to assist you with any modifications you need. 

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Engine Rebuilding & Modifications

  • Full Engine Overhaul

  • Race Application Engine Building

  • Engine Short Block

  • Transmission Rebuild

  • Crank Shaft Rebuild

  • Valve Seat/Guide Replacement

  • Clutch Rebuilding/Modification

  • Cam Shaft Timing Modifications

  • ECU Mapping

  • Titanium Hardware Installation (Bolts-Nuts)

  • Carb Tuning/Setting

  • Valve Train Overhaul

  • Race Application Performance Upgrade

  • Aftermarket Upgrade(s): 

  • Short Blocks/Full Replacement

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Cylinder Services

  • CNC Porting (4-Stroke)

  • Hand Porting (2-Stroke)

  • Cylinder Overboring

  • NSC Coating

  • Power Valve Service

  • Replacement Cylinders (OEM/After-Market)

  • Cylinder Sleeve Inserts

  • Cylinder Hone

  • Cylinder Head Rebuilds

  • Cylinder Head Milling & Repairs

  • Cylinder Exchange

  • Cylinder Repair

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Customs & Upgrades

  • Graphic Kits/Decal Customization & Installation

  • Sport Hub/Rim Replacement

  • Aftermarket Rims & Tires

  • Exaust System Upgrades

  • LED Lights + Accessories

  • Seat Covers & Body Covers

  • Wheels & Spokes

  • Winch & Plow Install

  • Seat Covers

  • Custom made Seats

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