Engine Compression Question?
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Freshman User
Joined: Jul 2003
Posts: 25
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From: Columbia Station, OH
Engine Compression Question?
What is the desireable compression for my '67 352. It has almost 77,000 miles on it, and I checked the compression yesterday and I there is 150 psig on all 8 cylinders.
Just wondering of this is a good number.
Thanks!
Just wondering of this is a good number.
Thanks!
Postmaster
Joined: Feb 2003
Posts: 4,043
Likes: 4
Sounds pretty good to me. And if all cylinders were close to the same value that's also good. Most shop manuals don't give a PSI reading for compression testing. Too many variables like cam timing etc. But they do spec that all cylinders must be within a % of each other. I think it's like 10% variation.
