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YJs with V8s

8K views 45 replies 14 participants last post by  daddyjeep 
#1 ·
Just as the title says, let's see YJs with V8 conversions!
 
#7 ·
Engine is from a 95 dodge ram 2500 automatic I bought the computer wiring harness and all bolt on accessories for $350 engine had 102k miles on it. You will need a dodge Dakota v6 bell housing, 5.9 flywheel manual transmission crankshaft position sensor, 91-92 dodge dakota fuel rail they can be found in some v8 grand Cherokees. Center dump headers, advanced adapters motor mounts or Novak, some wiring skills and a wiring diagram but all in all I think I'm about $1000 into the hole swap. I dove it down the road the other day and it runs so smooth lots of power and all my gauges work its like it was made to fit.
 
#20 ·
Oh I see your running a 42 or 46rh or automatic transmission so your starter is on the passenger side which lets you run stock manifolds. I'm running an ax15 manual so my starter is on the drivers side. Where the manifold would dump right into it. What are you doing for running gear?
 
#22 ·
I just read your whole build thread. Thats one kick ass rig. Is it driving yet? Got anymore videos of after the exhaust is done? And how much wider is the bronco 9" then the 35? My uncle is the president of b&g performance and they can tune your pcm to remove torque management. It cuts ignition timing when you step on the gas to remove power so you get a smoot acceleration.without it you can roast the tires easily.
 
#25 ·
I haven't been spending much time in the shop, summer is always tough. Still no exhaust. My build thread is current, no behind the scenes work going on. I was under the Jeep the other day and realize that I need to build a new Y pipe too. It sits too low and is causing issues clearing the tranny cross member.

Does your uncle have a PCM he would sell me? You can get me the family discount right?
 
#27 ·
Lol yea probably not he actually said i should go obd2 since the tuning capabilities are much better. I tried looking for a cheap 5.9 manual transmission computer and couldn't come up with anything so im using an automatic transmission computer at the moment. After doing the swap i think early obd2 would have been just as easy to do if not easier. But maybe down the road when i get aroumd to building a new harness ill go obd2. I wonder what stand alone ignition systems would work with this swap?
 
#28 ·
93 wrangler with TBI 350, 700r4 and Chevy 208 t-case all out of a 92 silverado 1500 doner truck.


For the tranny I used a Lokar 10" floor shifter and fabbed up this bracket and cover for the transmission tunnel, pic was in the makings of the Brkt


And I reused the stock jeep boot
 
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