Crawled up from the YJ gang to ask a question for a club member.
Don`t know the whole story as an 89 YJ would have a 4.2 so it is a bit difficult to figure out just what he has.
Will/can a HO head fit on a pre-90 block?
What are the issues?
I think I have an 89 4.0 engine non HO. Obviously that will not do. So. I need to find this out.
Because I thought 4.0`s came in XJ`s prior to YJ`s.
Clear as mud ??
Don`t know the whole story as an 89 YJ would have a 4.2 so it is a bit difficult to figure out just what he has.
Will/can a HO head fit on a pre-90 block?
What are the issues?
I think I have an 89 4.0 engine non HO. Obviously that will not do. So. I need to find this out.
Because I thought 4.0`s came in XJ`s prior to YJ`s.
Clear as mud ??