high output intake??
11-29-2009, 08:04 PM
#1
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Year: 1990
Model: Cherokee
Engine: 4.0 I-6
high output intake??
does anyone know if you can put a high output intake on any 4.0 inline 6 or do you have to match a different head,,, any info on this would be great, thanx
11-29-2009, 08:09 PM
#2
The H.O. intakes are for the 91 and up XJs. 87-90 have the Renix system. The H.O. head will bolt up to the Renix head and you can even get them running, but it will not perform well. The ports are different on the Renix and H.O. heads and intake manifolds and they do not flow well when mismatched. The performance and fuel mileage will suffer.
11-29-2009, 08:37 PM
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Year: 1990
Model: Cherokee
Engine: 4.0 I-6
oh man, just got the xj out on its first trip and i figured that i had an intake leak and the computer was maybe trying to adjust w/more fuel, the guy i got it from put on the intake and harness, then i finished everything else. back to the drawing board i guess
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