Riva/Darton Yamaha SHO/SVHO 1.8L Pro-Series Cylinder Sleeves

The Riva/Darton new bulletproof sleeve system is the ultimate foundation for your high performance engine. Engineered specifically for Yamaha SHO & SVHO engines by Darton Sleeves, the leader in racing sleeve technology, these sleeves will hold up to extreme punishment in high boost applications. Innovative Flat-Lock flange design locks sleeves in place reinforcing block and protecting head gasket. Key Features Include: Integrated Flat-Lock flange design protects block. Bulletproof Darton ductile steel construction. Increased horsepower potential. Ideal for high boost supercharged & turbo applications. Superior ring sealing. Can be installed by your local machine shop. Sold as a set of 4 matching sleeves. Engineered specifically for the Yamaha SHO & SVHO engine by Darton Sleeves. NOTE: Requires special tools and fixtures. Only a qualified machine shop or engine builder should perform the installation.  APPLICATIONS: 2023 Yamaha FX Cruiser SVHO 2023 Yamaha FX