I have a 350-4 intake with a large X cast into it. I will upload pictures tonight. Is there anything special/experimental with X casting? I am not going to use it but want to make sure I know what it is.
Hi, I found a pair of single 4v AL nailhead x-casting intakes, and there was the "X-standard length casting number". From what I can gather is X-castings were either preproduction or engineering test samples dyno or casting sample, also most of these were supposed to be destroyed after testing or a given amount of time. Rumor has it at one time Buick scrapped dumpsters full of experimental engine parts. Good find, at worst it will be a good conversation piece. Regards,
You may need to do a little more research regarding the presence of a cast 'X' in the intake. While I know there are threads regarding the various "finds" of experimental and pre-production cast parts, for some reason, I thought that some pics actually had the letter 'X' what was obviously hand made rather than a nice, clean 'X'. That's why I am thinking that it might be a mold identifier of a regular production. either way, do a little more research on it.
I'm not the authority by any means but every experimental "x" casting piece I've seen is a very sloppy hand carved x. I don't think you have anything special
Thanks for all the replies. I bought this off a board member and if it was a valuable piece was going to split any proceeds as I will not be using it. The extra heavy comment is true....
