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Click on image for the lowdown. 
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7 members (HandyAndy, MickeyP, Gdads51, k2handyman, chevy51truck, Otto Skorzeny, 1 invisible),
60
guests, and
1
robot. | | Key: Admin,
Global Mod,
Mod | | | Forums66 Topics128,049 Posts1,055,699 Members48,426 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
| | THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Dec 2008 Posts: 1,922 'Bolter | | 'Bolter Joined: Dec 2008 Posts: 1,922 | The quick rule-of-thumb (not science!) is static compression ratio X between 15 and 20, but it's going to be wrong with a hot cam.
8:1 = 120-160 psi, etc. | | |
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