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Re: SBC Heads
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Originally Posted by Ole Blue 68
What about 882 heads? I see a lot of these being sold but they seem to have the same specs as the 487s.
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Back in the early 90's I picked up a set and had them port matched and pocket ported. I kept the valves at 1.94/1.50. This was supposed to be the hot setup for very reasonable dollars and keeping the compression 87 octane friendly.
Go here http://chevyhiperformance.com/techarticles/41598/
They have a database of flowbench tests on heads, both GM and aftermarket. You can see the 882 has the best .400" flow numbers of the first 4 factory castings even the L98's. But look at the vortec castings and see how much better they are. 23 cfm at .400 over the 882's.
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Stu-
1981 GMC Sierra Classic LWB
355- original 2 bolt block, 10.2:1, vortec heads, Comp XE268 cam, built by self in 1992
700R4-2000 stall with lockup, shift kit, Corvette servo
3.07 open diff- I need a 3.73 posi!
2nd owner since 1986 - 388,000 km and counting. 100k by the first owner and the rest by me.
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