I6-cylinder swap questions

will a '76 CJ I6 engine bolt up to a '73 304 V8 bellhousing?

what size is a stock '76 I6?

 

Yes, all the post-71 AMC I6 and V8 bell patterns are the same. Motor mounts are differnt though.

258 cid (4.2L).

 

thanx Tim

 

nifty idear there

just had a brain fart and thought hmmmmm, i already have a rebuildable
I6 that could be adapted to FI, and it has a bellhousing on her that would accept (i think) NP435

now.....if i 'member correctly, the 4.2 crank added to a 4.0 makes a stroker......like i said, IF i remember correctly

 

Yes 4.2 crank + 4.0 block = 4.5 or 4.6 stroker, depending on the overbore. Here's a good place to start: http://www.jeep4.0performance.4mg.com/stroker.html
There's a Yahoo strokers group that has a lot of good info too.

Folks have adapted the 4.0L MPI to the 4.2L without buying the spendy Mopar MPI kit. There's a discussion group about putting the 4.0L into CJs and Wranglers on the JU (?) board... it's been brought up here before. Maybe somebody wil fill in the address, or a search should turn it up.

 

thanx for that link Tim! used to have it saved when i had my XJ w/ 4.0 but after a few PC crashes and selling the XJ the link has been long gone.

 

Rockcrawler.com has a 4.7 stroker right up as well. You need the crank and rods from the 258 to make it work.