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Click on image for the lowdown. 
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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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For helping keep this great
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on the Internet for over 30 years! and not clogged down
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If I stay at a compression ratio of 8.5:1 I should be find.
I know the cyclinders walls are smooth,had to replace head gasket awhile back.Engine has flat top pistons,small valves.
The truck was own first in the sixties by a natural gas company.
No telling how many times this engine has been rebuilt.
Jimmy
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