Chevrolet Performance ZZ572/720R Crate Engine

The ZZ572/720R is the king of all Rat engines and is capable of pulling your bracket racer or heads-up challenger down the drag strip in the 9-second range. We deliver it fully assembled. All you have to do is bolt on the included Dominator-style 1090-cfm carburetor, along with a starter and fuel pump (not included) and you’re ready to go! With 727 hp at 6,300 rpm and 680 lb.-ft. at 4,900 rpm, you’ll make quite an impression.

The engine assembly is all-business, with a latest-generation tall-deck block casting with four-bolt main caps and an all-forged rotating assembly; a unique mechanical roller camshaft; and high-flow aluminum rectangular-port cylinder heads.