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Mod | | | Forums66 Topics128,089 Posts1,056,004 Members48,430 | | 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!
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#74533 03/09/2007 4:40 AM | Joined: Feb 2007 Posts: 52 Wrench Fetcher | | Wrench Fetcher Joined: Feb 2007 Posts: 52 | How do I figure out what engine I should have in my 55 1st 3/4? I know that it should be either a 235 or 261 but which one?
Kenny B. | | |
#74534 03/09/2007 4:43 AM | Joined: May 2006 Posts: 8,351 'Bolter | | 'Bolter Joined: May 2006 Posts: 8,351 | If it's still the original engine, it'll be a 235. If you can get the numbers that are stamped next to the distibutor, they can be decoded either at American Classics site (see link above) or by one of us 'Bolters if it doesn't come up there. That's the best way to certain of what you have.
Bill Burmeister
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#74535 03/10/2007 2:40 AM | Joined: Mar 2004 Posts: 3,068 'Bolter | | 'Bolter Joined: Mar 2004 Posts: 3,068 | My book says that a 235 was the only choice for the 1 ton 55.1 pick-up, as long as it's still the original engine that is,
Scott | | |
#74536 03/10/2007 5:07 AM | Joined: Feb 2007 Posts: 52 Wrench Fetcher | | Wrench Fetcher Joined: Feb 2007 Posts: 52 | The engine that was in it was a GMC schoolbus engine, do not know which year or anything else. I knew that I wanted to get the correct engine so I sold that one. Now it is a Flintstone truck.
Kenny B. | | |
#74537 03/10/2007 5:31 AM | Joined: Jul 2006 Posts: 187 Shop Shark | | Shop Shark Joined: Jul 2006 Posts: 187 | I think you should have a blown 572CI big block. lol | | |
#74538 03/10/2007 3:32 PM | Joined: Aug 2005 Posts: 1,186 Shop Shark | | Shop Shark Joined: Aug 2005 Posts: 1,186 | Hey Kenny, You should be looking for a 235 to be original. The 261 was not an option on a 3/4 ton. That being said, I would find a 261 and put it in the truck. Most people would never know the differance just by looking at it. | | |
#74539 03/11/2007 11:32 PM | Joined: Feb 2007 Posts: 52 Wrench Fetcher | | Wrench Fetcher Joined: Feb 2007 Posts: 52 | 5Wests That engine is going in my 73 Fiat 850. LOL while rolling on floor.  Kenny B. | | |
#74540 03/13/2007 4:28 AM | Joined: Jul 2006 Posts: 187 Shop Shark | | Shop Shark Joined: Jul 2006 Posts: 187 | If you can't squeeze it in the Fiat, you can donate it for my Burb. Good luck finding your 235 if that's the route you go. | | |
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