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  #1  
Old 12-05-2005, 06:55 AM
BradN BradN is offline
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I am looking for options to replace the engine in my wife's '90 GW. Since it is the vehicle she takes the kids to school in every day, my primary focus is dependability.

Here are the options that I have come up with:

Option 1 - Rebuild current engine and add fuel injection.

Option 2 - Install fuel-injected Mopar crate engine ($$$$)

Option 3 - Install replacement 360 crate engine

Option 4 - Install crate engine from another manufacturer (GM 350, etc.)

What do you think the most cost-effective solution would be? If other ideas, please let me know.

Also, what are some good sources for crate engines.

Thanks in advance!

Brad
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Old 12-05-2005, 07:01 AM
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I would get a motor out of a wrecked grand cherokee (mopar fi magnum 360 or 318) and a 4wd 727. Easy and good used magnum motors are cheep.
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  #3  
Old 12-05-2005, 07:06 AM
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most cost effective solution would be option 3 with option 1 being the next best.
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Old 12-05-2005, 07:15 AM
case case is offline
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I agree. Mopar would be more work.
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Old 12-05-2005, 08:23 AM
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All motors are about the same as far as reliabilty goes. It's the little stuff that bolts on (and around) the motor that goes haywire. So any motor in a Jeep will have the same 'Jeep-issues' over the long haul, IMO. So staying in familiar territory makes sense to me - ie. AMC 360 rebuild. After everything is running right I would then go to add the EFI.
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  #6  
Old 12-05-2005, 08:26 AM
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A '87 to '95 TBI Chevy 350 is a nice easy swap, then you can go to a GM tranny like a 700R-4 if you have at least the 3.31 gears.

If you want any easier than that, stay with the AMC motor.
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  #7  
Old 12-05-2005, 09:08 AM
BradN BradN is offline
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OK. If I decide to get a 360 crate engine, what are some good sources?
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  #8  
Old 12-05-2005, 09:44 AM
Woodro Woodro is offline
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I just put a 360 crate engine in my 89 GW, got it from Advance 3yr/36K mile warranty. Had an oil leak at the time cover (Advance covered having it fixed) After several small things, appears to be running good. Knock on wood...

I tried to save some money by having some guys do it on the side, not the best idea in the end. Let someone that knows what they are doing install if for you. Good luck
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  #9  
Old 12-05-2005, 10:30 AM
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Save a fortune by doing the install yourself. It's not hard, just time consuming.
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Old 12-05-2005, 10:33 AM
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oh yeah, do you have emissions testing? Most, if not all, FI systems for a 360 are not emissions legal.
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  #11  
Old 12-05-2005, 10:55 AM
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i thought the edelbrock efi set up was 50 state legal
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  #12  
Old 12-05-2005, 11:46 AM
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I think these things at base units are not emissions legal. You have to make them compatible with exisiting smog equipment. I'm pretty sure that's what Edelbrock means. Also, when you buy FI, you are warned its not legal but you can easily make it legal if your hookups are right. And, if you've read enough threads, you can fool most inspections with a throttle body.
Just for kicks, BradN, what'd the Mopar FI engine price at?
Brent
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  #13  
Old 12-05-2005, 01:38 PM
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My plan is to have two intake manifolds. One with all the smog crap and stock carb installed 'ready to go' as a modular setup for testing days.

Normally I'll run a different setup with another style maifold and someday EFI.

BTW I thought the Howell EFI setups were 50 states legal.
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  #14  
Old 12-05-2005, 02:13 PM
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"OK. If I decide to get a 360 crate engine, what are some good sources?"

Look into Hesco too. Especially if you want to turn the 'wick' up a bit on a motor. And don't discount the idea of subing in a 401 either. It looks like a 360 on the outside but runs a much bigger game inside.
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\'84 J10 Pioneer -- Edelbrock headers, Intake. MSD 8778 Ignition. MC 4-bl carb. 1970 "319" 51-CC heads. Comp cam. 401/727 B&M truck-shifter (floor), 3.73:1 gears. 31\"x12.5\"x15 ProComp A/T tires on M/T Classic II 15x10 wheels. Rear swaybar. Bucket seat conversion & redone interior. Interior roll bar and 4-point harnesses.
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  #15  
Old 12-05-2005, 03:03 PM
BradN BradN is offline
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Woodro - I am not familiar with Advance. Do you have a link to their website?

Brent - The MSRP for an EFI crate engine through a Mopar dealer is between $6000 & $7000.

The County I live in is not subject to emissions testing, yet. However, I don't think it is too far down the road.

One of the reasons I am contemplating a new engine with EFI is to get rid of some older technology emissions junk if I can. I am a relatively big guy (6'2", 250 lbs.) and everytime I work on the thing, the air tubes rip me to shreds.
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  #16  
Old 12-05-2005, 03:04 PM
BradN BradN is offline
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BTW, Thanks again for all the input!
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  #17  
Old 12-05-2005, 03:18 PM
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I did all the work myself (~ 8 week-ends, I'm slow)

replaced with with $1300 long-block (reused timing and valves covers) $250 edelbrock intake $900 TBI system.

Still tuning out a few bugs, but the driveability of the GW is night & day. OK, I'm comparing a 130K carb with a new TBI, but what a pleasure ! Idle is an almost perfect 600rpm.

While you do it yourself, you can replace a lot of parts that are cheap, but that a "professional" would not replace because it doesn't have the time to wait for yet another hose. Basically everything which is in rubber - hose - has to be replaced.

Take your time, and 3 tubes of hylomar, and you could get it done.

Good Luck !
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  #18  
Old 12-05-2005, 10:50 PM
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The edelbrock site states not for use on emissions controled vehicals.

Of course, so does a lot of stuff...

But depending on where you live and how close they check and what the definition of 'emission controlled vechical is....'
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