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. Its delivered fully assembled. You simply bolt on the included Dominator-style 1090-cfm carburetor, along with a starter and fuel pump (not included).  It is all-business, starting with a brand-new block casting with four-bolt main caps and an all-forged rotating assembly.

Issue #109