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Labor Day Putting down your wrenches or time for
MORE wrenching? 
Plenty of places to share. | | Click on image for the lowdown. 
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| | | Forums66 Topics128,010 Posts1,055,299 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: Jul 2005 Posts: 8 Junior Member | | Junior Member Joined: Jul 2005 Posts: 8 | Can someone tell me a web site that will tell me what engine I have in my 66 SWB? I do not believe it is what came as stock. The block casting # is 3877178C GM25. I think it may be from a '62 possibly a 235? I have been on this site since last summer in the lurking mode, but have learned alot from you guys about my 66. Thanks, Rick
Never read the small print...There is no way you're gonna like it!
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