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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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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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| | | | Joined: Jan 2008 Posts: 77 Wrench Fetcher | | Wrench Fetcher Joined: Jan 2008 Posts: 77 | OK, I've read all the info on this site and many others. The engine in my 5700 has a casting number on it --3738307 and the code above the starter seems to be 00N4. I thought the first one was supposed to be A-L ? Spare engine is 3835911 and 00N3. Blocks look different from each other, but both have 4 screws on valve covers and low water pumps. I put alternator bracket kit on the first engine and had to space out the mount because it hit another boss in the block below it. The other engine uses a bracket the bolts to the block just above the oilpan mount. Help Mr. Wizards !!! What do I have? | | |
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