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LY6 w 243 heads and LS2 flat tops? possible compression ratio

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Old 02-08-2013, 12:39 AM
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Default LY6 w 243 heads and LS2 flat tops? possible compression ratio

Anyone have a ball park on what kind of compression this thing will be at. It's a stock Ly6 that's getting LS2 flat tops and 243 heads and gm ASA cam. Heads and block surface are all stock and will not be milled.

Anyone care to guess possible horsepower with Lt's and LS6 intake and stock TB.
Old 02-08-2013, 12:48 AM
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Should be 10.9. Calculator agrees, and that's what an LS2's compression is.
Old 02-08-2013, 11:09 AM
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Should be perfect and make a nice running little combo for my sonoma. thanks
Old 02-09-2013, 10:31 AM
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What would the compression be for a stock LY6 short block with 243s?
Old 02-10-2013, 03:08 PM
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it set at 9.7:1 on 69.8cc heads so it would be in the low 10's with a 64.5cc 243s


read more about that ASA cam , I think youll change your mind
Old 02-10-2013, 04:10 PM
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The cam is nice. Everyone told me about the cam being ****. But I love it very easy to drive, did not have any problems with it. I have a 6.0 with 243 heads LT's. stall is 3000yank. Here is a vid

http://i870.photobucket.com/albums/a...s/72d19202.mp4
Old 02-11-2013, 10:56 PM
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CAMS free I pulled it out of a friends camaro. I'll give it a shot for what I'm using it for and how I drive it should be fine I also like the fact of gm valvetrain reliability.
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