Who has a 350 swap here in CA? Have you legally BAR'd it yet? The 350 has interested me a lot, but most people that I see swap it in on this forum, don't live in the People's Republik of CA...and don't have to deal with the BAR and smog certs like we do.
I currently have a 91 YJ. It has a 2.5. While I like it, I know it's going to give up the ghost someday, and while I would love to rebuild it, I know it'd be a waste of money compared to (re)building a 350 and putting it in.
I'm a bit lost on where to start.
What generation/model 350 should I be looking at?
I know it'd need to be at least 91+. Emissions have to be from that vehicle as well, IIRC. Should I just convert to OBD1 or 2 and go from there, or stick with OBD0? I love OBD1 in Hondas, it was the easiest generation of motors/ecu's to deal with/swap/smog/tinker with. (just an example, and where I usually poke around as far as engines go..)
Transmission? I'm most likely going to convert to an automatic, i've seen 700r 4L60E, all kinds of autos being tossed around. I've currently a AX5 manual, IDK which transfer case I have...NP231?
And I'm sticking with asking in this forum, because everywhere else will say to move out of CA, or stick with rebuilding the 2.5 lol.
Headaches how? Wiring? Or Referreeing the swap? I've never really researched swapping in a 4.0, mainly because the 350 would get more hp/tq, mpg, auto so my gf would be able to drive it (she doesn't like driving manual... ) coolness factor, etc etc.
Smog headaches. I believe it has to be a newer engine than the one that came stock to be street legal. I will check into it. I've got a marine buddy that runs a smog shop in Manteca and I will be sure to ask him.
If you have OBD1 you must install something with OBD1. Same for OBD2. If the engine passes the sniff test and "if originally" it can be hooked to a computer, and still can. Then your good to go. I have never found a smog guy to fail me in SoCal because I had a motor swap. As long as it passed the sniff test and was able to plug into their computer to check the status of my CEL, and the CEL was off, then it passed.
***my experience*** a vin 5 SVT motor, swapped into a Gen 3 OBD2 Ford Escort. Never had an issue.
Infact just yesterday I junked it. Sept 1st I was hit when a no speaka ringrish "southerner" ran a red light and nailed me.
Long story short: 1st car, sold in 03, guy I sold to blew motor and dumped car, I never released liability, got it back 5 years later, swapped motor (stock SPI always blows up), drove it from 08 to sept 1st 2012, got hit, stripped good parts, said goodbye.
I know you can convert your rig to whatever. Meaning, I can swap in an obd2 motor, as long as i put all the correct emissions equipment on it. matching harness, computer, cat convertor, o2 sensors, etc etc. as long as it matches the motor going in.
I need to research WHAT 350's are available for what years. It almost seems like I can get any 350 block, put the right heads on it, intake manifold, etc, and be good to go. But I'm completely new to this motor.
To make it easier on you and your smog guy I would stick with a 91+ EFI/OBD drivetrain. Legally it must include all of the engine's original equipment including catalytic convertor, o2 sensors, EGR...etc. and since yours is OBD1 it must be able to plug into the smog dyno and show a system readiness and no fault codes.
If your dead set on a 350 then look into the mid 90s LT1 Gen2 350 found in the 92-96 C4 and the F-Bodied (4th gen) Camaro/Firebird.