2.5L to 4.0L Engine swap...

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docboy209

NAXJA Forum User

Location

Selkirk, NY

• Apr 7, 2008

• #1

One of my co-workers blew up the 2.5 in his '95 Wrangler. He got a 4.0 w/tranny and electrical/electronics. He ran into a problem with the motor mounts. The brackets welded to the frame rails are about 7" too far back, and are about 1/2" too wide. The engine is against the firewall using the 4.0 rear crossmember. Anyone else run into this? Got any ideas besides cut and reweld the mounts?

 

old_man

NAXJA Forum User

Location

Loveland, Colorado

• Apr 7, 2008

• #2

Not framiliar with the Wrangler, but I did a 2.5L to 4.0L XJ and all I did was bolt in the 4.0L mounts instead of the 2.5L mounts.

 

Jeff in VA

<---respect

Location

Richmond, VA

• Apr 7, 2008

• #3

YJ frame horns are welded to the framerails, XJ/MJ's are bolted. You will need to cut off the 2.5 horns and weld the 4.0 horns on in the correct spot.

Jeff

 

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docboy209

NAXJA Forum User

Location

Selkirk, NY

• Apr 15, 2008

• #4

Jeff in VA said:

YJ frame horns are welded to the framerails, XJ/MJ's are bolted. You will need to cut off the 2.5 horns and weld the 4.0 horns on in the correct spot.

Jeff

Click to expand...

Thanks Jeff. That's what he did. Had to fab new horns because the frame bends upwards where he needs to weld them.