4.2 carb vs 4.0 FI

[XJ junkie]

Can you put the stocker 4.0L headers on the 4.2Lcarb inplace of the manifold?

thanks

[XJ junkie]

anyone?

[XJNASH]

I think the bolt hole will line up. Not to shure how it will work with the Intake or where it will connect to your down pipe.

[Static-XJ]

You'd also have to look at combustion chamber size, and valve to piston clearance. And you'll need to get all the electronics that go with the 4L head.