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Old 11-20-2009, 10:24 AM
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cylinder heads

o.k. I have two sets of sbc heads, one set is the 882's and the other set
is the 462624 that i was told came off a vette. Question, since they are both
1.94-1.5's are there any other differences? Mild build sbc.

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Old 11-20-2009, 10:47 AM
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The 882`s are smog heads, large inefficient combustion chambers.
The 624`s are smog heads just like the 882`s only they are lighter and known to be crack prone. Both heads make a good boat anchor and a better wheel chock.
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Old 11-20-2009, 12:55 PM
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Neither are worth the money it takes to rebuild them, so onless they are in great shape, there not worth more than scrap iron price. You can buy new SR(stock replacement) aftermarket heads from Dart, RHS, and Engine Quest(EQ) for what a rebuild on these will cost, and the SR's are a better head in all respects - thicker, stronger iron, better ports.
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The 624's could have come off an 80's vette. But they are still junk. Lightweight castings. Most I see are cracked in the middle chambers.

The 882's are older heavier castings. These are also known for cracking. But of the two sets these are the better.

882's can be made better with minor port match on intake side.. Kind of the best of the worst!!
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Old 11-20-2009, 04:37 PM
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thanks for the tips. both sets are in really good shape. New question,
is there way for me to see if there are cracks in em' without taking
them to a pro? I'm so broke i can't even afford to pay attention....
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