40.5cc.jpg 387 hits | 31.89 KB | Posted: 6/6/11 this is the 40.5cc shallow chamber. dropping the chamber lower into the cylinder, creates a longer i...
60cc.jpg 375 hits | 32.2 KB | Posted: 6/6/11 this is the standard location 60cc chamber
60cc40.5cc.jpg 381 hits | 39.81 KB | Posted: 6/6/11 both the 60cc standard chamber and the shallow 40.5cc 'drop' chamber side by side in the same head