[Chevy454]

Stan:

I would GLADLY accept any help I could get on this! Believe me, this is THE LAST thing that I needed right now, as I was just really needing a set of heads to finish our engine for the "Certified Stock", but now I have a set of mint heads that I can't use, as they are possibly peices of a puzzle!

OK, so it seems we all agree that some 1969 cars got 291 heads from the factory? Right?! Terry had saw the 'Vette with 1 291 head and Ed Cunneen told me he had an L-72 (Camaro engine I believe) with 291s that he said came that way. So, now the question is what valves and spark plug seats should these early 291s have? The early (F 10 9) head I have has 2.19/1.88s and takes a peanut plug.

Now for the 840s! I'm kind of at a "cross roads" so to speak with these. I kind of need to run them, but I hate to as they may be something of interest to some people. So, I am going to TRY and hold off as long as possible on using them. But, everyone so far that has seen these heads believes they originally came with the 2.19/1.88s. But, like you said, we have to PROVE it. So, since we live in the "Show-Me" state, that's kind of what I plan to do...to whoever is interested.

So, since I have an 840 head and a 291 head cast just 3 days apart, does this mean these were possibly the days that they quit casting the 840s and started casting the 291s?