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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!
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| | | | Joined: Aug 2008 Posts: 15 Apprentice | | Apprentice Joined: Aug 2008 Posts: 15 | Hey Guys
Today I pick up an 84 gmc crew cab long box (not much of a stovebolt) my question is I have a 69 gmc 1 ton, the 84 has a rebuilt 454 (in super cond) what are the chances this motor will fit and if so how much trouble to do so, the 84 is a four wheel drive with a four speed my 69 is also a four speed.. but two wheel drive plus less stuff under the hood.. | | | | | Joined: May 2006 Posts: 8,351 'Bolter | | 'Bolter Joined: May 2006 Posts: 8,351 | It'll fit just fine, GM offered the big block as an option for that year truck, although that one would have been a 396. You just need the correct motor mounts. Should bolt up the existing bellhousing and trans fine. Use the 454 flywheel, though, as the 454 is an external balance engine.
Bill Burmeister
| | | | | Joined: Aug 2008 Posts: 15 Apprentice | | Apprentice Joined: Aug 2008 Posts: 15 | Thanks Longbox55
That great info | | |
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