registration45
New member
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!!
chevy swap? jeep body swap?
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Bounty__Hunter
Super Moderator
Less work to put the GM drivetrain into the YJ.
registration45
New member
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.
83-cj-7=383-stroker
New member
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
54cj3b
New member
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:shades:
83-cj-7=383-stroker
New member
registration45
New member
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!
tjlboise
New member
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.
rubn1out
New member
ever do a 4 wheel burn-out on asphalt?? he he he he:lol:
rubn1out
New member
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.
superj
Well-known member
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.
