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Car Forum / Jeep / March 2004engine swap for CJ
This has been talked about many times here but I am wonder what is the cheapest simplest engine tranny swap for a CJ that will give 200+ horsepower. I would like to stay away for electronics and computers etc.. because donor vehicles are hard and expensive to find around here. I guess anyway I look at it I will need and adapter for the transfer case. Any engine auto tranny recommendations? 350 Chevy? You can still get point distributors for them so you wouldn't even need an ignition module and parts are everywhere. Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's > This has been talked about many times here but I am wonder what is the > cheapest simplest engine tranny swap for a CJ that will give 200+ > horsepower. I would like to stay away for electronics and computers etc.. > because donor vehicles are hard and expensive to find around here. I guess > anyway I look at it I will need and adapter for the transfer case. Any > engine auto tranny recommendations? Out of anything particular, car or truck, years, did some have a better combination in terms of transmission carburetor etc... > 350 Chevy? > [quoted text clipped - 11 lines] > > anyway I look at it I will need and adapter for the transfer case. Any > > engine auto tranny recommendations? Chevrolet small block, and any of the Borg Warner or Muncie transmissions from the sixties. God Bless America, ßill O|||||||O mailto:LWHughes3rd@aol.com http://www.billhughes.com/ > This has been talked about many times here but I am wonder what is the > cheapest simplest engine tranny swap for a CJ that will give 200+ > horsepower. I would like to stay away for electronics and computers etc.. > because donor vehicles are hard and expensive to find around here. I guess > anyway I look at it I will need and adapter for the transfer case. Any > engine auto tranny recommendations? I saw a 396 short block in one once just a thought.  SignatureHarryS JAFGBR JAFTJO > Chevrolet small block, and any of the Borg Warner or Muncie > transmissions from the sixties. [quoted text clipped - 7 lines] > > anyway I look at it I will need and adapter for the transfer case. Any > > engine auto tranny recommendations? Yup, but then you begin to talk Real money, and six inch driveshafts: http://www.billhughes.com/buickV8jeep.jpg V10: http://www.off-road.com/4x4web/features/1999/03/ God Bless America, ßill O|||||||O mailto:LWHughes3rd@aol.com > I saw a 396 short block in one once just a thought. > > -- > HarryS > JAFGBR > JAFTJO Where would you find a transmission from the sixties, my local yards rarely have anything from the 80's. Also why a tranny from the 60's ? > Chevrolet small block, and any of the Borg Warner or Muncie > transmissions from the sixties. [quoted text clipped - 7 lines] > > anyway I look at it I will need and adapter for the transfer case. Any > > engine auto tranny recommendations? I don't know what your budget is, but the big 3 automakers all have "crate" engines which are all assembled, some even with carburetors. These engines are all new, not rebuilt. The Chevy 350 swap will probably be the least expensive. Otherwise any carbureted engine can be desmogged and de-computerized. As far as automatic transmissions go for Chevy, a Turbo 350 or Turbo 400 (both 3 speeds, no overdrive) will work. The Turbo 400 has bigger external dimensions, so there may be clearance issues. If you want and overdrive 4 speed auto trans, then you will need a 700R4 GM transmission. these were used in most RWD cars and 4x2 and 4x4 trucks starting in 1982. I would avoid the 82-84 models. The 85-88 models were stronger. In 1989 they changed to electronic speedometer, so you would probably want to avoid those. The 700R has one computer controlled function, which is torque convertor lockup, but this can be converted to engine vacuum/brake pedal control with a kit from Painless Wiring. HTH Chris > Where would you find a transmission from the sixties, my local yards rarely > have anything from the 80's. Also why a tranny from the 60's ? [quoted text clipped - 11 lines] > > > anyway I look at it I will need and adapter for the transfer case. Any > > > engine auto tranny recommendations? Transmissions form the sixties were stronger, except though designed to be behind the little sixes like in the TJ. Choose from the heavy duty: http://www.quiknet.com/~ke6vut/gearchart.html will hold up to two hundred horse power, more than that you'll have to choose from the Corvette and muscle car stuff like the T-10 and M-22. You may have go rebuilt and core: http://www.drivetrain.com/transmanualrebuildkit.html God Bless America, ßill O|||||||O mailto:LWHughes3rd@aol.com http://www.billhughes.com/ > Where would you find a transmission from the sixties, my local yards rarely > have anything from the 80's. Also why a tranny from the 60's ? |
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