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Jeffreyh 05-03-2013 10:47 PM

6 for 4??
How tough is it to swap a 6 cylinder for a 4? and, is it cheaper to rebuild or replace a 4? on a 94 yj renegade I haven't done any significant engine work for 20 years... Thanks!

wrangleryj90 05-03-2013 11:13 PM

Why would you do this? And it's just as hard as any swap plus you would want to re gear axles and everything

Squirrel 442 05-03-2013 11:15 PM

Well that is a first. The trans won't mount up without a kit. Why not rebuild the 6? I don't think their is a huge diff in MPGs. What is the reason you want to swap?

Jeffreyh 05-04-2013 12:27 AM

OOPS!! I want to remove the 4 and replace it with a 6! Sorry!

wrangleryj90 05-04-2013 12:30 AM

Same thing goes with that you will need a different trans and all the wiring moved over

gunslinger24 05-04-2013 01:10 PM

From the research I've done, it's a big undertaking. Plus unless you buy a crate motor, you are probably going to want to rebuild the 6.

My plan is to rebuild my 4 banger .30 over, mild cam and a bit more compression.

Xpress 05-05-2013 09:35 AM

Everything in the driveline and wiring will have to go depending on which 6 cylinder you go with. The Transfercase will work just fine behind the 6, but you will need to change the input shaft in it to mate with the bigger transmission output spline.

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