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Click on image for the lowdown. 
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| | Forums66 Topics128,051 Posts1,055,762 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!
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| 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!
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| | | Joined: Feb 2020 Posts: 47 'Bolter | | 'Bolter Joined: Feb 2020 Posts: 47 | Mine were 118cc. 104cc after removing .080 of the head. Also shaved the block .020 To bring the pistons level to the block. Never calculated compression ratio.
just retired and finally making headway on my project truck. 1940 GMC AC152.
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