update on my 4cyl to 6cyl swap
I just wanted to give a update to my 4 to 6cyl swap.. Many people have asked for an update so I thought I would start a new post
Most people say it is not worth it because it is the same work to swap a V8. I am going to have to disagree with this, it is much easier and cheaper to use the 6cyl instead of a GC V8.
I bought a wrecked 97 Sport, 6cyl 5 speed. I used the engine, computer, trans, tcase, cluster, exhaust and driveshafts.
I had to weld in new motor mounts(Hardest part), rest was beyond easy, there were no wires to cut, no driveshafts or custom harness's..
I paid $1500 for the parts TJ, sold my 4cyl,tcase,trans, seats, and AC Setup for $1300 and I still have the windshield frame, tailgate, axles, soundbar, seat belts, and rollbar left.. So I broke even or made a few $$.
I bought the following parts:
Motor Mounts $70
Clutch $150 (not needed but easier when it was out of TJ)
Oil for motor, trans, tcase, axles $79
Exhaust Manifold $125 (just because they all crack)
Other than the motor mounts, all the plugs were the same and just swapped computers and it started right up. No check engine lights, no problems..
Had I of gone with a V8, I would of had to get a harness made or figure out the wiring, get a shifter, have driveshafts made, and get a new radiator.
I do know you get an extra 100ft of torque with the V8.
As for the way it drives, it is like a race car compared to my 4cyl.. With the 4cyl and 31" tires, it could not even make it up hills without downshifting to 4th and then it would stay the same speed if I floored, not I can speed up while in 5th gear.. The parts TJ had 3.07 gears and mine has 4.11 so even after upgrading to 33" tires the speed on the cluster is still off by 10MPH @ 60mph(says 70 when going 60)..
I have gone through 1 tank of gas, not sure the mileage because of the cluster being so far off and I have been on it more than normal, but I am guessing 15 to 18MPG...
So, while I agree a GC V8 would of been nice, it would of been much more money and more work and the I6 with 4.11 gears has more than enough power for 33" and I am sure 35", plus I like the manual and most V8 swaps I have seen require an auto trans....
2007 Rubicon Unlimited
SRT8 6.1L Swap Auto
RE 4.5" Long Arm
37" Cooper STT MT 17" Rims
Currie G2 D60 Rear, ARB 5.13
Mopar bumpers rear DVD, LockPick, MyGig, Sirius,
Full Soft Doors
2005 Inifinti G35 4 Door 6MT
Stillen Stage 3 Supercharger