BUSY BOLTERS Are you one? The Shop Area
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| | Forums66 Topics126,777 Posts1,039,270 Members48,100 | Most Online2,175 Jul 21st, 2025 | | | Joined: Sep 2009 Posts: 296 'Bolter | 'Bolter Joined: Sep 2009 Posts: 296 | Ok..I know our hoods are tough to realign, so on my '53 3100, Im thinking I can pull the 216 doing this: Remove radiator and frame, grill, front bumper and splash apron, and squeeze the motor between the front 2 fenders. (might have to take a couple things off the motor, but thats no big deal)
Anyone done this??
-Patrick 1953 Chevrolet 3100 261 / 4-speed / 4:11 / Commercial Red
| | | | OLTrucks Unregistered | OLTrucks Unregistered | Do it that way all the time. Works great! Mike | | | | Joined: Sep 2009 Posts: 296 'Bolter | 'Bolter Joined: Sep 2009 Posts: 296 | How about unbolting the tranny also and pulling it the same way (pull motor and tranny together)? Does it fit??
Last edited by Green_98; 04/14/2010 6:56 PM.
-Patrick 1953 Chevrolet 3100 261 / 4-speed / 4:11 / Commercial Red
| | | | OLTrucks Unregistered | OLTrucks Unregistered | I have always unbolted the trans and just pulled the engine and bell housing out together and set them back in that way. Kinda alot od weight out there with the trans hanging way out back. Mike | | | | Joined: Sep 2009 Posts: 296 'Bolter | 'Bolter Joined: Sep 2009 Posts: 296 | yea that does sound heavy.
Are tranny's hard to remove if I leave the motor intact? (in case I dont want to rebuild my tranny right now)
-Patrick 1953 Chevrolet 3100 261 / 4-speed / 4:11 / Commercial Red
| | | | Joined: May 2001 Posts: 1,878 'Bolter | 'Bolter Joined: May 2001 Posts: 1,878 | My shop manual says: "raise the engine, clutch and transmission from the chassis as a unit." I did it that way but would remove the tranny next time. Engine removal w/tranny attached. I installed the new 261 w/o tranny attached. Hood fits better now using the "au contraire" approach than it did before the engine swap. The shop manual also says to mount the engine on a stand with the tranny attached. What kind of engine stands did they use?? 1948 3/4-Ton 5-Window Flatbed Chevrolet 33 Years. Now with a '61 261, 848 head, Rochester Monojet carb, SM420 4-speed, 4.10 rear, dual reservoir MC, Bendix up front, 235/85R16 tires, 12-volt w/alternator, electric wipers and a modern radio in the glove box.
| | | | Joined: Sep 2009 Posts: 296 'Bolter | 'Bolter Joined: Sep 2009 Posts: 296 | Thanks! Good pictures btw.
What kind of modifications did you do, going from your 216/235 to the 261?
-Patrick 1953 Chevrolet 3100 261 / 4-speed / 4:11 / Commercial Red
| | | | Joined: Feb 2006 Posts: 649 'Bolter | 'Bolter Joined: Feb 2006 Posts: 649 | I would suggest removing the entire front "sheet metal" as a unit, and leave the hood in place. That will save a lot of fitting and panel alignment problems. It's been mentioned before, that the 4spd will not clear the cross member? | | | | Joined: Sep 2009 Posts: 296 'Bolter | 'Bolter Joined: Sep 2009 Posts: 296 | I think Im going to unbolt the motor and remove it...tranny is in good shape. I can always go in from underneath and get it later. Its a 3-spd. I just dont want to have to remove the sheet metal (i dont have room to store it and I dont want to scar up my nice paint job)
-Patrick 1953 Chevrolet 3100 261 / 4-speed / 4:11 / Commercial Red
| | | | Joined: May 2001 Posts: 1,878 'Bolter | 'Bolter Joined: May 2001 Posts: 1,878 | Green_98, Back in the day, they used to cut the top piece of the radiator support frame on both sides. Removing that and piece of metal with the latch hole in it allowed more room in the front to pull the engine. That's been done twice with my '48. The second time, they didn't weld it back so I took advantage of the extra room. Cuts in top radiator frame piece. I once looked at the approx. 31 AD trucks that were in the local yard and many showed evidence of cutting that radiator frame piece. The 261 slapped right in. They make a water pump adapter to better center the fan since the pumps of the 235 and '61 261 are of different types and are at different heights. 1948 3/4-Ton 5-Window Flatbed Chevrolet 33 Years. Now with a '61 261, 848 head, Rochester Monojet carb, SM420 4-speed, 4.10 rear, dual reservoir MC, Bendix up front, 235/85R16 tires, 12-volt w/alternator, electric wipers and a modern radio in the glove box.
| | | | Joined: Sep 2009 Posts: 296 'Bolter | 'Bolter Joined: Sep 2009 Posts: 296 | Very nice Wally; now that I think about it, I think mine has been cut too. I dont have a saw or welder at the house, so I'll just unbolt it! Still undecided about the 261...depends on the condition of my 216 block I guess
-Patrick 1953 Chevrolet 3100 261 / 4-speed / 4:11 / Commercial Red
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