•  ZZ572/720R Deluxe w/ 4L85E Transmission

Don’t wait weeks or months for a custom drag racing 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. You simply 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, starting with a latest-generation tall-deck block casting with four-bolt main caps, and an all-forged rotating assembly for exceptional strength and durability. A unique mechanical roller camshaft with 0.714/0.714-inch lift and 278/282-degree duration specifications complements high-flow aluminum
rectangular-port cylinder heads with massive 310cc intake passages, 118cc raised exhaust ports and 118cc combustion chambers, moving big air through the engine efficiently to make huge power!

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ZZ572/720R Deluxe w/ 4L85E Transmission

  • $22,782.33