05-02-2018, 03:33 PM
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Join Date: Jan 2014
Location: SouthEast of Denver
A small block Chevrolet is a common swap. Depending if you want fuel injection or the simplicity of a carb, I'd look for a wrecked 4X4 truck and use the motor, transmission and transfer case (as long as the TC front drive runs under the driver).
Before I even started a project like that, I'd research the cost and begin saving my nickels and dimes. Advanced adapters has a lot of what you'll need.
If you plan on building a FI rig, be sure to get the brain and complete harness from the donor vehicle. A FI setup from Howell is in the $1500.00 range. An aftermarket radiator for SBC in a YJ is $350.00-$500.00. You'll need two custom made driveshafts plus a sturdier rear axle. And a bunch of other stuff, but that's just for starters.
If I were to plan on such a conversion, I wouldn't put a wrench to my Jeep until I had everything I needed sitting in my garage and another couple/few Grand in the bank.
As stated above, a SBC is a common swap. I'm partial to small block Fords because the distributor is on the front of the motor (if you plan on a carbed setup).
A V8 Mopar swap probably has plenty of fans.
The least expensive swap will be a 4.0 from a Cherokee XJ. Rusted/wrecked XJs can be had for a Grand or so with low enough miles that you should get years of use from the drivetrain.
Good Luck, L.M.
"Wrangler....It's not just a vehicle, It's a lifestyle".
1987 YJ-4.2L-Standard Shift- Re-manufactured Carter Carb-2" body Lift-31X10.5X15 BFG KOs-190K Miles No back seat.
HEI distributor with computer and all related relays and wiring removed.
12K Badlands winch with dual batteries.
Warn front bumper. Matching imitation Warn bumper on the rear.