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hey guys, im trying to figure out what head gasket i should buy, i have a 403 olds, i've put #7 heads and a few more mods.. im wondering what the difference would be if i installed a .020'' gasket apposed to say an .080" gasket. i know the compression would change but would it be a huge difference? a noticable difference??

thanks alot..
 

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Rough-Rider said:
hey guys, im trying to figure out what head gasket i should buy, i have a 403 olds, i've put #7 heads and a few more mods.. im wondering what the difference would be if i installed a .020'' gasket apposed to say an .080" gasket. i know the compression would change but would it be a huge difference? a noticable difference??

thanks alot..
Ideally you would like your head .040 to .050 from the piston. Measure how far down the piston is below the top of the block.
 
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