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8 members (cmayna, Wally / Montana, 2-Ton, GusG, FAST55, Phak1, 3B, 1 invisible),
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Mod | | | Forums66 Topics128,185 Posts1,057,281 Members48,467 | | 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: Nov 2011 Posts: 141 'Bolter | | 'Bolter Joined: Nov 2011 Posts: 141 | I swapped out the front cross member on my 1946.5 Chevrolet 3/4ton with a GMC cross member and dropped a 270 in yesterday. Since it brings it out an inch and a half I'm working through the sheet metal problems, as well as moving the radiator forward. I was wondering if there was anyone here that has done this? Looks like I will need to take some of the radiator support out to bring the hood down. Pushing it forward means the hood is too high. And cut the upper baffle back 2 inches or so. But if there is someone that has done this I would love to talk it over before I cut too much.
Last edited by 1946GMCDAN; 07/03/2016 5:06 AM.
Trombones Totem Poles And Old Trucks!
| | | | | Joined: Nov 2005 Posts: 1,554 'Bolter | | 'Bolter Joined: Nov 2005 Posts: 1,554 | In my 46 hotrod I had to move the radiator 2 inches forward. I only moved the radiaror not the frame. I made spacers to move it and remount it. I had to modify the sheetmetal piece that is just forward and above the rad. My rad is not a stock rad and is shorter than than standard. I think my 41 gmc has the rad moved forward also. Dave
Last edited by homer52; 07/03/2016 5:11 PM.
1941 Chevy"First rebuild - complete!"Follow the story in the DITY1941 GMC resting peacefully 1946/1947 Chevy Street rod on s10 frame complete 1945 GMC panel truck in line for restoration 1941 Plymouth stock complete 1941 GMC COE in restoration processRead his Project Journal1941 Chevy Coe uncertain future resting now
| | | | | Joined: Sep 2010 Posts: 1,721 back yard wrench turner | | back yard wrench turner Joined: Sep 2010 Posts: 1,721 | I put a 270 in my '38. I moved the radiator forward to the front of the cowl. I did have to modify the top piece of sheet metal, but the hood closes without issues. I'm using the stock radiator.
Last edited by Wayne67vert; 07/03/2016 1:03 PM.
Wayne1938 1-Ton Farm TruckStovebolt Gallery Forums1989 Silverado 1996 Mustang GT convertible When I die, I hope she doesn't sell everything for what I told her I paid for it! | | | | | Joined: Nov 2011 Posts: 141 'Bolter | | 'Bolter Joined: Nov 2011 Posts: 141 | Thanks! I abandoned the extension plate idea and went with the wood spacer and put the radiator inside the support 1 and 1/2 inches forward. It worked perfect!
Trombones Totem Poles And Old Trucks!
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