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Mod | | | Forums66 Topics128,015 Posts1,055,334 Members48,419 | | 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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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: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | Weeds, This is out of my league, but the Power Pack heads (on 265s and 283s) topic has come up a few times recently. Here is a little information. Looks like 9.25:1 compression ratio with flat-top pistons (vs 8.0:1). | | |
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