post #1 of Old 04-08-2004, 09:12 PM Thread Starter
ST33LR4T
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Join Date: Mar 2004
Posts: 13
Reanix block vs HO block

i am currently running a 94 4.0L HO block in my yj. i have a line on a 89 4.0L reanix block.

i want the 89 to build a stroker with so i have as little downtime as possible.

can i use the 89 in my yj? ive been told the blocks are pretty much the same...ive also been told the mounting points on the reanix are different then the HO.

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post #2 of Old 04-12-2004, 10:38 AM
75SV1
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Quote:
Originally Posted by ST33LR4T
i am currently running a 94 4.0L HO block in my yj. i have a line on a 89 4.0L reanix block.

i want the 89 to build a stroker with so i have as little downtime as possible.

can i use the 89 in my yj? ive been told the blocks are pretty much the same...ive also been told the mounting points on the reanix are different then the HO.
I can't definately state on this swap. If your vehicle was a Cherokee or Comanche, the reverse of this swap has been done. I bought a 95 4.0L HO block off a guy out of a TJ(for the head). He had an 01 block sitting there he couldn't use. He said the motor mounts wouldn't bolt up. I think on that engine, they didn't drill and tap some of the bosses towards the front of the engine. I am not sure if they have those bosses on the 87-90 Renix blocks, or if they are drilled. During that time, the Wrangler used the 4.2 (258).
Tom
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post #3 of Old 04-13-2004, 08:36 AM Thread Starter
ST33LR4T
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ive had one shop tell me its different, then ive had another shop plus some other people tell me it will swap. so im gonna take my chances and pick one up.
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