Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Anyone know the stock compression ratio for a 1979 350 chevy ?
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Old 06-05-2012, 06:09 PM
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I agree with above, 8-8.5:1. Those 76cc heads (Most likely what you have) kill compression, throw in a dished piston and you end up on the low end of the C.R. ladder. On the good side you don't need premium gas. If they are dished pistons I think they are 18cc cups, I'm not positive though, 58cc chambers are ok with dished or most 4 valve relief flat tops but you need to pay close attention to your timing with the flat tops. Summit and Wallace Racing have a compression ratio calculator on their site's once you figure out your specs. Hope this helps.

Last edited by GMCBEAST; 06-05-2012 at 06:20 PM.
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