Quote:
Originally Posted by Baba O'Riley
Thanks for that. But &*%#, these guys don't make it easy for us, do they? Crazy.
Finally -- Butler Performance lists the SPC-5 as a comp for the original GM 9779067 cam (what I want), while PartsHawk says the comps for the SPC-5 are GM cams 537441 and 529472.
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To the best of my knowledge the SPC-5 is a copy of the late 50's early 60's 389 with 3 2 barrels 524886 camshaft. The number that stands out to me is the 66.5 degrees of overlap, which is more than the 068 camshaft. But the same .050 duration as a 067 cam.
I would think you would need a 10 to 1 .compression to run that cam. I have some specs on a few Pontiac cams I attached. The numbers vary a bit from other sources.
I read somewhere once Melling had a SPC-6 that was an 067 copy but I guess it did not sell well enough.