not this one ! never messed w/ a smallblock mopar, did build an estimated 600h.p. 406 sbc tho. hell, I ain`t even stopped the oil leak on my 505 yet ! thot it was the rearmain seal, but seems to be the combination of a girdle and windage tray. going to remove some of the rear lip of the girdle and can (sell) the windage tray, don`t think I need it and a girdle both.