Save time and money by replacing entire engine Reuse Stock or aftermarket carburetor and air cleaner Choose between reusing stock or upgraded aftermarket ignition system EFI Compatible, calibration required through use of aftermarket module or add on tuner Shorter than stock height engine eliminates any clearance problems 585 camshaft S&S performance heads, including Forged rocker arms, 585 lift valve springs Forged pistons Exclusive oil jets to cool bottom of the pistons S&S Cycle HVHP oil pump 9.8:1 compression ratio Wrinkle Black Finish 2 Year Limited Warranty S&S engines are shipped without oil; Not legal for sale or use in California on any pollution controlled motor vehicles.