Emission Legal 5.9L V8 - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 12-24-2001, 02:12 PM
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Emission Legal 5.9L V8

I'm thinking of doing a Magnum 360 or 318 conversion on my little 4 cylinder YJ. I've looked at crate engines but they aren't exactly emission legal which doesn't help since I live in California. Does anybody know where I could find an emission legal 318 or 360? I was thinking about pulling one out of a Dodge Ram or Grand Cherokee. I'm not sure how much that would cost though. Any input would be appreciated.

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post #2 of (permalink) Old 12-24-2001, 02:33 PM
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Re: Emission Legal 5.9L V8

The CA emission law states that the donor must be in the same vehicle class and from the same year or newer. I'm not sure what class the YJ's fell into, but I doubt that the Rams would be in the same class. The Grands might work, but the 5.9 is tough to find in them (the newer body style that is). The old 360's from the full sized Grands are everywhere, but have a buch of funny emission crap on them. And again these might be a different vehicle class. You'll need to do a bit of research to mach sure that you don't end of with and "off road only" vehicle. Have you looked into a 4.3L from a blazer? Similar performance to the 4.0 but more aftermarket support and more common in the junk yard (more chevys out there than Jeeps).

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post #3 of (permalink) Old 12-26-2001, 07:31 AM
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Re: Emission Legal 5.9L V8

How much do you want to spend? I built a 5.9, and it was about $3k after balancing and $500 worth of pistons. This included the flywheel, clutch kit, and bell-housing to a NV-4500. I plan on wiring up the newer '98 fuel injection. (project on hold because of new house)

It would a lot cheaper to go with a '95 5.2 magnum. This system is exactly the same as the MPFI kit that Hesco sells, but with 2 more cylinders. The crank angle sensor is mounted to the engine block, which makes it a lot easier to adapt without the expensive harmonic balancer.

If you wanted to drive down the front range to the Springs, I could get you into a '95 18k mile 5.2 engine with AX-15 attached for $800. I think I may also have a wiring harness with all the sensors to throw in. The tranny is new, missing the shifter.

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post #4 of (permalink) Old 12-26-2001, 09:42 PM
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Re: Emission Legal 5.9L V8

The 4 cyl tranmission has smaller input shaft than the 6 cyl. There no conversion clutch plates availible for the smaller input shaft. You will need a new trans most likely. Take that fellow from Co Springs up his deal.

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