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Mod | | | Forums66 Topics128,162 Posts1,057,042 Members48,463 | | 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: 29,270 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,270 | The "R" probably indicates a Replacement engine code number. If it is 54 or later - find and post here these codesIf it is 53 (or, earlier), here are code locations.People can ID the head and block for you with those casting codes. You might have an interesting time registering that vehicle, if the original engine serial number was used for titling/registration (the original engine serial number was often used for titling/registration). | | |
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