Brand new in box never opened or taken our of the shrink wrapping ARP 135-3609 cylinder head bolt kit for big block chevrolet engines. Designed to fit Gen 4 and 5 engines with aftermarket aluminum heads from brodix. May fit other brands aftermarket heads however I can make no guarantees. Please check and verify with your machine shop or ARP prior to purchase to confirm fitment. Thinning the herd, my loss is your gain.
