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  1. #1

    chevy swap? jeep body swap?

    Im trying to decide if i want to swap the 350 into the YJ, or shorten the frame on the '84 chevy shortbed and put the jeep body on it? any suggestions are welcome!!

  2. #2

    Re: chevy swap? jeep body swap?

    Less work to put the GM drivetrain into the YJ.

  3. #3

    Re: chevy swap? jeep body swap?

    plus the GM 1/2 ton frame's are prone to cracking around the steering box and motor mounts and rotting out in the rear.

    Lastly, a jeep body on a chevy frame looks like a 1/2 arse POS IMHO

    put the 350 into the yj frame, the frame is plenty strong enough.
    It used to be a jeep Thing,
    But all that stuff broke

    -Johnny-


  4. #4

    Re: chevy swap? jeep body swap?

    I've been weighting the options here. i really think putting the jeep body on the chevy frame is the most cost effective way to go. im still up in the air with it tho, if anyone has any pictures of it i would love to see them.

  5. #5

    Re: chevy swap? jeep body swap?

    if your going ta put it on a chevy frame u might as well just set it on a full size blazer frame the 350 swap into the yj is fairly simple and the frames hold up very well to a 350 with no problems
    my jeep is dead

  6. #6
    Join Date
    Aug 2009
    Location
    Evergreen,Colorado
    Posts
    1,520

    Re: chevy swap? jeep body swap?

    Quote Originally Posted by registration45 View Post
    I've been weighting the options here. i really think putting the jeep body on the chevy frame is the most cost effective way to go. im still up in the air with it tho, if anyone has any pictures of it i would love to see them.
    how is this more cost effective
    first off swapping a motor and trans is cheaper and easier than all the modifying it will take to get jeep body to fit chevy frame and more time consuming
    I installed a 4.3 ,sm465 , into a 3b in about 8 hrs and I was by myself doing it .cost me under $1000. and that includes the donor truck and all parts motor mounts ,adapter for transfer case and all the other odds and end parts I used and when I finished I made another $300.scraping the donor
    I had a cj on a blazer frame when I was younger it looked and drove like crap
    but to each is own like my granddad always said
    ALL I OWN ARE JEEPS!

    54CJ3B ,76DJ5RHD , 81DJ5RHD, 88XJ , (It's)93XJRHD(Alive), 06KJ ,

  7. #7

    Re: chevy swap? jeep body swap?

    i personaly woundnt put the jeep on the chevy frame !!!!! do the motor swap u will like it so so much better and it will perform awesome here is a pic with a 383 stroker sbc in a cj
    Attached Thumbnails Attached Thumbnails chevy swap? jeep body swap?-part951289397864791.jpg  

    my jeep is dead

  8. #8

    Re: chevy swap? jeep body swap?

    another 350 swap... yawn.

  9. #9

    Re: chevy swap? jeep body swap?

    Quote Originally Posted by volaredon View Post
    another 350 swap... yawn.
    yeah i don't care about your opinion..... anyway i guess im going with the 350 into my frame. I got this truck from a buddy, it's a worked over 350 punched.040 over rebuild 2 years ago. its a 1/2 ton body on a 3/4 ton frame and axles. i don't care how far the axles stick out, i'm runnin' it. I can make sick wide fender flares, I would still like to see pics if anyone has them of this swap!

  10. #10
    Not really sure which way you decided to go. You've only said "putting the 350 on my frame"... hopefully this means you're using the jeep frame. The chevy frames, as stated earlier, are VERY weak, and unreliable around the steering box mount. I have cracked three separate frames in that very spot not even doing anything all that serious as far as wheeling goes. If you're looking for cost effective, you'd be much better off using the jeep frame in the long run, but if you insist on using the chevy frame, they do make a weld-on plate for that area for the very reason that it cracks so easily. But really, that only goes to show you that its a major and well known problem .... just my .02... take it for whatever its worth to you. Good luck. Let us know how it all turns out.
    Roads? Where we're going, we don't need...roads

  11. #11

    Re: chevy swap? jeep body swap?

    Here's a 91 TPI motor from a corvette ZR1 in a YJ:
    Attached Thumbnails Attached Thumbnails chevy swap? jeep body swap?-100_0328.jpg  

    chevy swap? jeep body swap?-100_0320.jpg  

    chevy swap? jeep body swap?-100_0343.jpg  

    chevy swap? jeep body swap?-rear-side-view-ds.jpg  

    chevy swap? jeep body swap?-100_0322.jpg  


  12. That is effffing sick!!! Great rig!!

    Sent from my iPod touch using Jeepz

  13. #13

    Re: chevy swap? jeep body swap?

    Quote Originally Posted by 56cj5 View Post
    That is effffing sick!!! Great rig!!

    Sent from my iPod touch using Jeepz
    ever do a 4 wheel burn-out on asphalt?? he he he he

  14. #14
    I did a 283 chevy small block and a turbo 350 in my 92 yj and it was simple enough.....
    Attached Thumbnails Attached Thumbnails chevy swap? jeep body swap?-forumrunner_20110503_015830.png  

    chevy swap? jeep body swap?-forumrunner_20110503_015923.png  


  15. #15
    Here's a quick video of er revin.......

  16. #16
    Quote Originally Posted by rubn1out
    Here's a 91 TPI motor from a corvette ZR1 in a YJ:
    Ooooooooo that's purrdy.......... maybe I can see it out on a trail some time......

  17. #17

    Re: chevy swap? jeep body swap?

    Quote Originally Posted by timbekk View Post
    Ooooooooo that's purrdy.......... maybe I can see it out on a trail some time......
    Originally Posted by 56cj5
    That is effffing sick!!! Great rig!!

    Thanx fellas....I'm building it for a buddy of mine...he wanted a "hotrod Jeep" lol....he may do a few small trails....but i seriously doubt he'll topple anything larger than a coke can lol.

  18. #18

    Re: chevy swap? jeep body swap?

    283 SB... Thats Cool.
    It used to be a jeep Thing,
    But all that stuff broke

    -Johnny-


  19. #19

    Re: chevy swap? jeep body swap?

    Quote Originally Posted by timbekk View Post
    I did a 283 chevy small block and a turbo 350 in my 92 yj and it was simple enough.....

    what kind of mileage do you see with your motor/transmission swap?

    i figure that my 79 step side with a stock 350 and turbo 350 got 14mpg with the ac on, in that body and frame. a jeep wrangler has to be lighter then a 79 chevy truck so i would hope that gas mileage increases a bit from the stock 4.2 (for me). i am happy when i get 14 with no ac in my wrangler.
    no more jeeps at this time. next time it will be a cj with a v8

  20. #20
    Quote Originally Posted by superj

    what kind of mileage do you see with your motor/transmission swap?

    i figure that my 79 step side with a stock 350 and turbo 350 got 14mpg with the ac on, in that body and frame. a jeep wrangler has to be lighter then a 79 chevy truck so i would hope that gas mileage increases a bit from the stock 4.2 (for me). i am happy when i get 14 with no ac in my wrangler.
    if I keep my foot out of it "wich is hard to do at times" im around 13-14 but its not a stock 283....... And if 4wd is in it goes down.. Thats why I bought a 97 xj with a 3 inch lift and 31s to drive daily

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