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Technical 1941 Chev. interchange

Discussion in 'The Hokey Ass Message Board' started by da dodge brother, Jun 2, 2014.

  1. da dodge brother
    Joined: Apr 2, 2010
    Posts: 406

    da dodge brother
    Member
    from wisconsin

    Will main body parts, roof, doors,etc, interchange from 1941 through 1948 Chev. Are those body parts the same on Olds, Pontiac or Buick . Thanks for any info ...
     
  2. chubbie
    Joined: Jan 14, 2009
    Posts: 2,361

    chubbie
    Member

    Lot of the parts are the same. rear fenders, roof, 1/4's, trunk lid, dash, seats, glass,floors, rear end, engine, drive line, some parts are the same in the front end. The doors will bolt on but they are different. the fire wall/cowl changed. Never tried to use BOP body parts. I used seats, window reg/door parts, dash/ radio, rear window and trim off of a pontiac.
     
  3. ems customer service
    Joined: Nov 15, 2006
    Posts: 2,651

    ems customer service
    Member

    your asking a big question, there is a lot of mis-information on this topic along with alot of tales, to get a correct answer we need to know exactly what your trying to do, and what car are we working with and body and style numbers from firewall tag, and where the parts are coming from. if your not carefull you can end up with a bunch of parts that do not fit right

    the ems guy
     
    Model T1 likes this.
  4. There are 3 models in the Olds family, at least 2 in the others, and not much interchanges between models. As was stated, you kneed to know exactly what you are working. The Olds I am sure on , since I have 2 of the models in 1941 sitting at my place.
     
  5. da dodge brother
    Joined: Apr 2, 2010
    Posts: 406

    da dodge brother
    Member
    from wisconsin

    Here is the situation. Local fellow rodder had his 1941 Chev. 3 Passenger coupe stored for the winter and the sheds roof collapsed and really messed up the roof. Rest of the car minor damage but roof needs replacement. What I'm looking for is what years and models of the coupes would interchange. It will be just like chopping a top but leaving it stock height ...
     
  6. George Miller
    Joined: Dec 26, 2008
    Posts: 413

    George Miller
    Member
    from NC usa

    My first car was a 41 chev station wagon. The wood was bad. I put a 41 Pontaic two door body on. It fit nice, but I think the rear fenders had different trim.
    I think only the small Pontiac body was the same, but that was 60 years ago.

    Might add I cut the body at the windshield pillars. So I used the chev fire wall and dash.
     
    Last edited: Jun 3, 2014
  7. mgtstumpy
    Joined: Jul 20, 2006
    Posts: 9,248

    mgtstumpy
    Member

    In 1940 I believe GM introduced:-
    • Short wheelbase 'A' bodies (Chev, Olds and Pontiac);
    • Intermediate longer wheelbase 'B' bodies (Olds, Buick, Cadillac, Pontiac); and
    • Long wheelbase 'C' bodies (Olds, Buick, Cadillac).
    My 'B' body 46 Olds 76 is the same platform as other GM marques (Buick, Caddy, Poncho and Buick) but has a different firewall, other idiosyncrasies and pressings. I have an interchange manual here as well as a master parts book that have been very helpful. You need to stay with your 'A' body platform as the others are totally different in many respects with limited, some or no interchange.
     
    1971BB427 and 33sporttruck like this.
  8. Hnstray
    Joined: Aug 23, 2009
    Posts: 12,355

    Hnstray
    ALLIANCE MEMBER
    from Quincy, IL

    "A" body GM Coupes built as Chevy, Pontiac and Olds, '41 thru '48 are the same roof. Buick used the "A" body coupe in '41 & '42 only and it is the rarest, Chevy, the most plentiful.
     
    1971BB427 and 33sporttruck like this.
  9. 33sporttruck
    Joined: Jun 5, 2012
    Posts: 530

    33sporttruck
    Member

    mgtstumpy and Hnstray have it pretty well covered. Your replacement roof should be from a Chevy, Olds or Pontiac. Good Luck, Jeff
     
  10. 1950ed
    Joined: Jun 3, 2006
    Posts: 142

    1950ed
    Member

    I you need some garnish moldings , I have some.
     
  11. jazz1
    Joined: Apr 30, 2011
    Posts: 1,568

    jazz1
    Member

    IMG_2367.jpeg Ancient thread but are 1941 Chev coupe fenders and hood going to fit to a 1948 coupe.
    Im already familiar with the door hinges being different.
    Thanks
     
  12. 1971BB427
    Joined: Mar 6, 2010
    Posts: 9,540

    1971BB427
    Member
    from Oregon

    Garnish moldings also vary a lot! Not just the embossed designs, but also the physical size! Even the 1/4 window garnish moldings are different depending on whether the 1/4 windows slide or are fixed.
    My '39 Chev coupe is a Sport Coupe with sliding 1/4 windows and the garnish moldings are 1" smaller in height and length, and have a slot pressed into them for the operator. Same for 1940, but post WWII I think all had sliding 1/4 windows.
     
    jazz1 likes this.
  13. jazz1
    Joined: Apr 30, 2011
    Posts: 1,568

    jazz1
    Member

    I bought what i was told is a ‘41 coupe cab only locally(turns out its not…location of hinges in door indicates later model) so i bought a ‘41 coupe for parts from Hamber to complete the car prior to learning this little bit of information..Now wondering what kind of a dogs breakfast to make ‘41 fenders fit on ‘48 coupe.
    The cab i got locally got one ugly stub ifs ,,,i have another frame to replace that mess. Needs a few patches but easy enough to deal with
    I dont see much difference in the cowl from the cornfield ‘41 to the later model coupe in my shop other than the bracket on driver side of cowl in middle pic IMG_2367.jpeg pic..the later model cab IMG_0034.jpeg
     

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    Last edited: Sep 1, 2024
  14. jazz1
    Joined: Apr 30, 2011
    Posts: 1,568

    jazz1
    Member

    This IFS was installed in 1968, guy must have lucked out as the stub would be ‘67 or ‘68 vintage but still one ugly install.
    The estate the body came from provided me with a bare frame that the car will be set on eventually
    image.jpg image.jpg image.jpg image.jpg image.jpg image.jpg
     
  15. jazz1
    Joined: Apr 30, 2011
    Posts: 1,568

    jazz1
    Member

    I was about to repair a frame for the car…the debris came out of the hole i cut…it seems mice nested in the frame rails,,,check various mounting holes on top of the frame and yep…debris 4” deep both rails. I want the frame rails cleaned out….maybe pour some diesel fuel in there and burn the debris…otherwise i will be replacing the bottom plate to clean it out.
    Rear 24” of one rail is the worst but repairable IMO IMG_2856.jpeg IMG_2858.jpeg
     

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    Last edited: Dec 28, 2024
  16. jazz1
    Joined: Apr 30, 2011
    Posts: 1,568

    jazz1
    Member

  17. BJR
    Joined: Mar 11, 2005
    Posts: 10,887

    BJR
    Member

    To clean out the frame compressed air is your friend.
     

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