Who is running a Mopar 5.2?

[Dmntxn77]

I've decide to swap one in my Chief... Who else has done it? What kind of tips do you have for me? AND... Please post pics!!
:thumbsup:

Here is my donor, its a 1993 Grand Wagoneer (woodgrain removed)...
http://i4.photobucket.com/albums/y130/dmntxn77/93%20ZJ%20Grand%20Waggy/WhiteZJ4.jpg


Since its a 93 model it has the OBD1 controlled 5.2L. It runs great and I have already installed:
Accel 300+ Digitial Ignition
Accel Coil
K&N FIPK
Mopar Performance ECU
Bored & Ported TB

...It should push the Chief around nicely!

[pineymike]

My son has been beating the crap out of a '93 grandcherk for a year now the thing takes a lickin' and comes back for more, It's been under water numerious times(thats when he changes the oil) and just genrally run hard&put up wet! It'll run on it's side&standin' on it's rear bumper! His latest is comuting 100mi a day to school! It's not the most fuel efficent motor but boy is it tough!Are you using the trans&case out of the GC I've though it would be a good choice&get and over drive too.Good luck have fun!!

[fulsizjeep]

Member name Rainman has a 5.2 in his GW.
http://www.ifsja.org/forums/vb/showthread.php?t=79083&highlight=rainman
I have not heard much about it in a while. You might ask him.

[mattmopar440]

The 5.2 a good motor but a turd in performance I would go with a 5.9 more power and same block still just as reiable :thumbsup:

[Dmntxn77]

Thanks for the link Flint. I posted in that thread a couple of times, and still forgot about it. In fact, since both my posts are about the same, I must have even forgot about it between posts.. :rolleyes2:

And, I dont agree with the 5.2 being a turd. I am very pleased with the power that I get out of mine. Its rated at 220hp 285ft/lb trq. Plus all the goodies that I have on it have added a fair amount on top of that. Plus, I MIGHT put on some other parts that were in intended for my Jeep 5.9 which include:

210x cam
Mopar Performance M1 Intake
2.02 EQ Heads
Harland Sharp Roller Rockers

I have driven both a Durango and a Ram with the 5.2 and I wasnt impressed, but the one in the Jeep feels good. It probably has something to do with the weight difference, which wont matter much with the gearing that I have in my Chief...

[Eugene 1]

The 318 Magnum is hard to beat. check out www.hughesengines.com (http://www.hughesengines.com) they are the people to talk too. they back their product and they know what they are talking about.

[shackwrrr]

dont know bout the magnum ones but the the early 318s had forged bottm ends and the 360 had cast. Ive heard of many taking 318s up to 8000 rpm stock and still wanting more

[Eugene 1]

Magnum are cast crank, but very strong if he wanted he could get a crank from a 70s motor

[jdaniel83]

I'm not a Mopar man but like DmnTxn77 said I have driven a Ram and Durango with the 318 in them and was not impressed at all. That being said I think if the motor is in the right vehicle with a few improvements it should be a good and semi-powerful powerplant for a Cherokee. Plus you'll get the added efficiency of MPFI so I think it will be a good swap. Good luck.

[jeepjerry]

My friend had a 98 Grand Cherokee with the 5.2 and that thing was fast!! It had plenty of power, i think they are great engines. He outran a couple of 5.9 cherokees with that thing. Dont know what was going on with his, but i was impressed.

Its hard to judge the power out of Dodge trucks since they are oversized and seem to be geared crappy. It should work well for you.

[mattmopar440]

I have driven both a Durango and a Ram with the 5.2 and I wasnt impressed, but the one in the Jeep feels good. It probably has something to do with the weight difference, which wont matter much with the gearing that I have in my Chief...
Thats what I get for being a dodge fan :D big bulky trucks with small engines I was in a camper van with a 318 in it thank god it had a fridge or you would starve to death before you got to the next town :eek:

[Stuka]

Well, if it was cheap/free I suppose I would run one. It has EFI, etc. But you are going to lose low end torque over an AMC 360. The 318's shorter stroke really hurts it there. Similar to the 304.

I don't think you would be happy with the performance in an FSJ.

But they are reliable engines, you can pound on them, and they keep going.

[Dmntxn77]

I dont doubt for a second that I will be pleased with the performance in my FSJ. This 5.2 is better in every way than any AMC 360 that I have owned...

Max torque is reached at a higher rpm, but with my Klune/205, I am not really worried about being able to find a gear that works.

Plus, with the 42re thats behind the 5.2, I will have a crawl ratio of 71.55:1 instead of 64.71: (with the 360/th400). AND... On the highway I will be only running 1886 rpms at 70mph instead of 2887 rpms...

It seems like a win win to me...

[jeepjerry]

You cant beat the multi-port fuel injection. Dodge was ahead of everyone else on that, chevy didnt use true multiport until what, '99. Vortec 5.7s are multiport, but they suck compared to having a fuel rail with 8 injectors.

[YellowJeep]

You cant beat the multi-port fuel injection. Dodge was ahead of everyone else on that, chevy didnt use true multiport until what, '99. Vortec 5.7s are multiport, but they suck compared to having a fuel rail with 8 injectors.

Hmm..pretty sure Chevy had multiport in 85 that had 8 injectors. They had the LT1 in 92 which was an already the 2nd revision of multi-port when dodge was still running throttle body on their V8 stuff.

Regardless, I think there are better engines to pick for a FSJ than a 318. If you are going to do that swap, just start with a 360. It's like running a 305 instead of a 350.
I would like to see someone try the mopar 4.7 engine or a supercharged 4.3 chevy.

[Dmntxn77]

Regardless, I think there are better engines to pick for a FSJ than a 318. If you are going to do that swap, just start with a 360. It's like running a 305 instead of a 350.


Yeah, which is also like running a 5.3 instead of a 6.0.... Right?? :p


There is always something better out there and just because the Magnum 318 isnt the bigest Mopar made, its still a huge step up over the AMC 360..

[mattmopar440]

I would like to see someone try the mopar 4.7 engine not till the get the overheating problems work out :D Hmmm headgaskets fun!!!!!!!!!!!!!

[red mistress]

I AND... On the highway I will be only running 1886 rpms at 70mph instead of 2887 rpms...

...


Hey glad to see ya working on Chief again.
Agree.... with all the gearing options you have, even a AMC 258 would be plenty of power for crawling around.
Something to be said for a free and reliable motor.

If UR brave enough spin the 42"s to 70 MPH :eek: they're going to swell up to 44"er's.

[Dmntxn77]

Hey glad to see ya working on Chief again.
Agree.... with all the gearing options you have, even a AMC 258 would be plenty of power for crawling around.
Something to be said for a free and reliable motor.

If UR brave enough spin the 42"s to 70 MPH :eek: they're going to swell up to 44"er's.
If I get brave enough to spin the 42"s up to 70 MPH, then I bet the tires will be towards the bottom of the list on the butt pucker meter... :eek:

I just used that as a reference. However, I do fully intend on keeping it street legal and driving it to the river here... :thumbsup:


BTW, I forgot to mention the main reason for this swap... My Klune-V will bolt right op the 42re that is behind the 5.2. So, not only am I getting a better motor than the AMC 360 (even though mine is top notch), I will also be saving $550 on the Klune adapter/tailshaft required to fit the Klune to the TH400, plus the cost of the rebuild to get the tailshaft in there... AND... I get to sell my 360 and my propane set-up since I wont need it anymore. That puts me up a grand instead of down a grand. :thumbsup:

[jeepjerry]

Hmm..pretty sure Chevy had multiport in 85 that had 8 injectors. They had the LT1 in 92 which was an already the 2nd revision of multi-port when dodge was still running throttle body on their V8 stuff.

Regardless, I think there are better engines to pick for a FSJ than a 318. If you are going to do that swap, just start with a 360. It's like running a 305 instead of a 350.
I would like to see someone try the mopar 4.7 engine or a supercharged 4.3 chevy.

oh yeah, forgot about the tuned port.....but i was thinking about the truck lines. the tuned port was only in camaros/firebirds and corvettes.

I dont know why im talking up dodge though, every dodge truck ive driven is a dog compared to a chevy truck.

[YellowJeep]

Yeah, which is also like running a 5.3 instead of a 6.0.... Right?? :p

There is always something better out there and just because the Magnum 318 isnt the bigest Mopar made, its still a huge step up over the AMC 360..
Step up? Yeah if it has EFI, otherwise no point in the swap.

More like running a 4.8 instead of a 5.3 :p

[jdaniel83]

There is always something better out there and just because the Magnum 318 isnt the bigest Mopar made, its still a huge step up over the AMC 360..

I don't know that I'd go so far as to say that the 318 itself is a huge step up from an AMC 360, but with the setup you are talking about it is certainly an upgrade. Like it was said in another post you'll lose some low end with the 318 but like you said with the gearing difference you should be ok. Plus you'll get better highway performance so it should work out nicely.

Oh and the '99 Chevy's didn't come with the 5.7 unless it was the Classic model or the motor was specially ordered. '99 was the "redesign year" and the first year for the previously mentioned 4.8, 5.3, and 6.0L motors which were the first truck models offered with the MPFI in the GM line. And the '99 and up models did have the "fuel rail" MPFI design that were on the Dodge motors. And even the '96-'98 Chevy Vortec motors had better HP/Torque/MPG ratings than their Dodge/Mopar counterparts even though they didn't have the MPFI in those years. And I'll have to agree with you JeepJerry, every Dodge truck I've ever driven was a dog compared to a Chevy with the exception of the early Cummins diesels compared to the Chevy diesels of the day.

But before this turns into a Chevy vs. Dodge thread I'll revert back to the original post, the 5.2L swap you are looking into sounds like a good swap and I imagine you'll be very happy with it. Good luck on the swap.

[Rainman]

Member name Rainman has a 5.2 in his GW.
http://www.ifsja.org/forums/vb/showthread.php?t=79083&highlight=rainman
I have not heard much about it in a while. You might ask him.

You haven't heard anything about it because nothing else has happened to it yet:rolleyes:

Sadly, life has gotten in the way of my jeep but the forecast for fall is looking better.

[Eugene 1]

oh yeah, forgot about the tuned port.....but i was thinking about the truck lines. the tuned port was only in camaros/firebirds and corvettes.

I dont know why im talking up dodge though, every dodge truck ive driven is a dog compared to a chevy truck.

LOL. i would own 318 over a 350,360,401!

[jeepjerry]

LOL. i would own 318 over a 350,360,401!

Im sorry.....:p

I would run a 290 over a 440...:thumbsup:

[Dmntxn77]

You guys are killing me...

[mattmopar440]

Im sorry.....:p I would run a 290 over a 440...:thumbsup:
I watch you tongue there buddy :cool: dont get much better then a 440

You guys are killing me...
Slowly :)

[jeepjerry]

Dont get me wrong, id rock a 440 6-pack all day long.....:drivin:

But, Im just an AMC freak!!!....:thumbsup:


Robert, you've already got the 5.2 and know its good, so run it!!!...:fsj:

[mattmopar440]

I agree with you on that I would never put a 440 in a Jeep I would put one in a RamCharger 401's are for jeeps 440's are for dodges :thumbsup:

[Dmntxn77]

Robert, you've already got the 5.2 and know its good, so run it!!!...:fsj:


I am... "Should I run it?" was never the question. Ive already decided to run it. Also, I have owned it for about 4 years, and am the one who put all the bolt-ons on it. I know that it has plenty of power, so once again, that wasnt my question.

I just wanted to know who else has done it and what kind of problems they ran into along with any tips that they have.

[Dmntxn77]

Ok, I might be changing my mind already...

If I win an ebay auction that I am watching, I wont be swapping the 5.2 in the Chief... Instead, I will be swapping the Chiefs' axles/wheels/tires onto the ZJ... :eek:

[red mistress]

Ok, I might be changing my mind already...

If I win an ebay auction that I am watching, I wont be swapping the 5.2 in the Chief... Instead, I will be swapping the Chiefs' axles/wheels/tires onto the ZJ... :eek:


Boring...who wants to see a ZJ on 42's.

Kimosabe...says build the Blue Chief, and U will be brave warrior. :D

[Dmntxn77]

Boring...who wants to see a ZJ on 42's.


:lol: sooo true.....

[Dmntxn77]

You know what... Disregard this whole post... Red Mistress is right. No one wants to see a ZJ on 42"s anymore then anyone wants to a 5.2 in a FSJ...

Ive got the go ahead from my wife, and I am keeping, and finishing, all three of my Jeeps... No more motor swaps, no more parts for sale, and the For Sale sign in my 5.9 Limited has come down...