Re: Aluminum Head?

Posted by HH56 On 2021/3/31 13:57:26

Good suggestion on reaching out to Ross and while I cannot say for certain the practice held with the 54 aluminum head, on the cast iron heads the number you see on the head is a casting number and not the actual part number. The part number was assigned after the heads were machined since the same casting could be machined differently for the various ratios or different arrangements of threaded holes on the side to attach other components.