|03-17-2012 09:09 PM|
|cvdenson||You could try this out: Leigh Performance Machine|
|03-15-2012 07:16 PM|
|Captainrichhill||Thanks : (|
|03-15-2012 03:01 PM|
Yes, unfortunately you have a TBI model. The 4.0 throttle body was made for MPFI intakes, not your single injector style.
Remove the intake pipe from the throttle body. If there is a big injector inside, the 4.0 swap won't work.
|03-15-2012 01:00 PM|
|Tyewilly||The 4.0 throttle body will fit '91+ 2.5s with mpi, unfortunately it won't fit '87 - '90 2.5s with tbi.|
|03-15-2012 11:31 AM|
4.0 throttle body upgrade compatable???
I have a 1990 YJ with the enimic 2.5l. I've been reading about the 4.0 TB upgrade and what I can tell is that if you have the 4 bolt intake then you can upgrade, if you have the 3 bolt intake then you can't.
Here's the skinny, I just looked at mine and it looks like it has 4 bolts but they are not symetrical spacing. They don't look like the hole will line up on the 4.0 TB's that i've seen for sale.
o o 0 0
0 0 0 0
My TB pattern 4.0 TB pattern
Any ideas if I would be able to make the swap???