Iv'e seen this pic that you posted before.. Is this the D port that was said to be made from filling in with weld? It doesn't look touched though but its a early style vertical boss? So many threads and posts to search for a answer!
I have posted it before as I have had the 35mm pics since the late 80’s early 90’s around the approximate time I had the 4-bolt main 455 Experimental block. I have just taken pictures of these heads with my camera to keep them accessible. I have no recollection of whose cylinder heads, these are, or where they came from . I imagine it was someone that I was speaking to during the time I was trying to document the X-block , so if I had to guess the guy mailed me the pictures after we spoke, because when I found the X block, there was also a fully rebuilt motor on the stand with a set of stage two cylinder heads, and my jaw hit the floor. It was the guys last set and he said they weren’t cheap. He then asked me if I had any idea how much he got for a set of those, I had an idea, but I didn’t want to guess because he was very old-school and if you said the wrong thing it would really set him off. Without my asking, he proudly proclaimed that he got $300 a set for them, but those were the last pair! Someone got a steal but of course I wasn’t too devastated as I was loading up the Experimental four bolt They sure did look pretty on that brand new Buick red motor though!
The D port heads you guys are talking about were the ones from the California guy was selling that were filled with braze(ing) and contoured to the D shape. I am 100% sure about this. Believe me, I know of ALL the Stage2 hardware that is out there!
There is a set of non Stage2 but prototype heads out there which have a very interesting exhaust port. It is big and square in shape… on a certain ‘70 white GS with green GSX stripes. He works for Buick in the factory in Michigan… Maybe I’ll get him to will chime in.
but those are not the ones that I’m talking about! Don’t think I have seen those before? Will have to investigate… Hmmm…
Didn't someone post a pic of these heads along with a set of exhaust manifolds that someone took alot of time porting them to match the heads? These are on the white GS now? Edit: they are pictured on post #324. Would of been cool if these were made into production for the Stage 1 option. Would have the GS 455 with the regular exhaust ports. The GS 455 Stage 1 with these bigger exhaust ports, Then the mightier Stage 2 option and heads. There would be alot of cost involved plus finding the correct manifolds if upgrading would be a nuisance but look at how many different heads Chevy had for their BBC..
Just came upon this thread while looking for a different ancient thread. To answer someone’s question. The Reynolds, Kenne-Bell car being driven on the streets back then. Don’t think it ever happened. My two reasons; First; it was and still is never licensed in its whole life. Second; the very low miles, 1,676 original miles. And Peter, car #4085 was driven on the streets from what I’ve known. TTT!
Yes I saw them at mikes ta.s shop in az. They were in the gm box and we’re bare castings, not even machined for seats! Gregg, I took pics but lost them when I erased the sd card ?
