Just welded in a set of the NEW Williams side engine mounts in a friends' 56 ; they're about the slickest I've ever seen for workmanship . Love the bushings and the option to go 3/4" forward or not , simply by swityching the mounts side for side . Engine height comes out bang on where the original front mounts had it . Earle's product is the best I've seen . Be safe....Bob.