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Mod | | | Forums66 Topics128,048 Posts1,055,663 Members48,426 | | 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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| | | | Joined: Oct 2005 Posts: 29 'Bolter | | 'Bolter Joined: Oct 2005 Posts: 29 | Hi Guys -
I searched the old topics and did not see an answer to this.
I have justed overhauled a military GMC 302 out of an M211 to go into my '54 GMC 350 dump/flatbed. The old engine was a 270. The old civilian bellhousing bolted on fine, but the 270 starter bumps into a small hummock on the 302 block that is not present on the 270. I read somewhere that this hummock can be ground down to allow the civilian starter to fit, but wanted someone smarter than me to comment before I grind a hole in the block of my new engine.
Thanks | | | | | Joined: May 2001 Posts: 7,438 Extreme Gabster | | Extreme Gabster Joined: May 2001 Posts: 7,438 | Yes, the hump must be ground. There is a very good discussion on the Old GMC site about that and other changes that need to be made. You'll have to register then go to the discussion forums and do a search. | | |
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