Novak Conversions Jeep Wrangler YJ engine mounts

4.2/4.0 water pump, timing cover, AX15 transmission adaptability

Dougie87

New Member
Joined
Apr 8, 2024
Messages
7
Location
South Carolina
Do the external parts of the 4.2 and 4.0 match up? I have a 4.2 beyond rebuilding so I wanted to see if I could replace it with a 4.0 short block. Will the 4.2 timing cover, water pump, oil pan and AX15 transmission adapt to the 4.0? I don't have the knowledge of this swap, so any help would be greatly appreciated. I'm ready to trail ride! Also have HEI, want to keep that.
 
Novak Conversions Jeep Wrangler YJ engine mounts