- Bolt on big bore kits mean easy installation with no machining and no rebalancing
- S&S bolt-in cams and premium tappets make the most of the added displacement
- Cams are .482" lift and 240° duration intake and 234° duration exhaust
- Compression ratios: 9.6:1 for 1200cc kit and 11.2:1 for 1250cc kit
- Easy installation; bolt-on parts, no machining, no rebalancing
- Use stock heads, pushrods, and fuel system
- For closed course competition use only. Not intended for street use.