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Click on image for the lowdown. 
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| | | Forums66 Topics128,193 Posts1,057,238 Members48,465 | | 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: Aug 2010 Posts: 182 Shop Shark | | Shop Shark Joined: Aug 2010 Posts: 182 | Which is preferred for a stock engine? From what I gather 180 degree was stock, but folks use the 160 degree to have extra protection against boil-over even though it doesn't let the engine run as efficiently. | | |
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