Does anyone have blowby specs for LS motors? There are blowby meters that in combo with leakdown and compression give a better overall view of what the engine is doing. I'm looking for the range of acceptable blowby in in of mercury or CFM that kind of thing.

Thanks!

 

What machine are you attempting to measure atmospheric pressure with?
Why not just do a leak down test.

Anything over 15% is rebuild territory with the ideal new engine being 2-4%