Natural crankcases and stock-looking silver powder coated cylinders S&S Cycle hydraulic valve train with roller rocker arms S&S Cycle billet timer and S&S Super Stock single fire ignition system S&S Cycle forged pistons Super E carb 513 cam 7.5:1 compression ratio Has correct length sprocket shaft for stock primary and transmission Generator style Two year warranty Not legal for sale or use in California on any pollution controlled motor vehicles