New engine vs rebuilt
#1
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New engine vs rebuilt
So i've made up my mind that ima do something with the engine. It's just the stock 242 but it's running very heavy and has almost 300k miles on it so i figure its time to do something about it. I'm stumped if i should just get a new 242 or rebuild the one i have already. I know if i rebuild i'll probably have to send it to the machine shop for a good do over. What do you guys suggest. Oh and i have thought about a 350 or a 383 stroker but i don't see a use in upgrading the size. I'm tight on gas as it is.
#2
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Year: 1987
Model: Cherokee
Engine: rebuilt straight 6
if you know what you are doing and can do the rebuild yourself it will save you a ton of money. even if you send it to a shop for machining.
but a new one is much easier. and if its actually new not cheapy from a totaled jeep. its much more reliable and will last longer.
my .02
but a new one is much easier. and if its actually new not cheapy from a totaled jeep. its much more reliable and will last longer.
my .02
#4
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the thing with rebuilding is is that once i have it out it's probably gonna stay out for a month or two because of work school ect. But if i get a new engine i can put back a weekend and just swap it out. And does a stroked 4.7 really make that big of a differnce? it'll cost a couple extra hundred bucks *im a cheapo, probably shouldn't have bought a jeep* and i'm not sure if a little more torque would be worth that.
#5
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Here is the thing with a new one though:
How much longer will you REALLY keep her for? How much longer will her body hold up for? How bad is the rust NOW? Honestly, if you rebuild it the right way, its as good as a new one. And lets be perfectly honest for a moment: Will she still be going strong in another 300K?
PS: In my opinion, a stroker is overkill. Whats the point? Its an XJ, not a Camaro. There are very few people who really need a stroker in an XJ, and even then, do they really need it? Why not put a supercharged twin turbo with 250hp shot of Nitros on it too.
How much longer will you REALLY keep her for? How much longer will her body hold up for? How bad is the rust NOW? Honestly, if you rebuild it the right way, its as good as a new one. And lets be perfectly honest for a moment: Will she still be going strong in another 300K?
PS: In my opinion, a stroker is overkill. Whats the point? Its an XJ, not a Camaro. There are very few people who really need a stroker in an XJ, and even then, do they really need it? Why not put a supercharged twin turbo with 250hp shot of Nitros on it too.
#6
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Here is the thing with a new one though:
How much longer will you REALLY keep her for? How much longer will her body hold up for? How bad is the rust NOW? Honestly, if you rebuild it the right way, its as good as a new one. And lets be perfectly honest for a moment: Will she still be going strong in another 300K?
PS: In my opinion, a stroker is overkill. Whats the point? Its an XJ, not a Camaro. There are very few people who really need a stroker in an XJ, and even then, do they really need it? Why not put a supercharged twin turbo with 250hp shot of Nitros on it too.
How much longer will you REALLY keep her for? How much longer will her body hold up for? How bad is the rust NOW? Honestly, if you rebuild it the right way, its as good as a new one. And lets be perfectly honest for a moment: Will she still be going strong in another 300K?
PS: In my opinion, a stroker is overkill. Whats the point? Its an XJ, not a Camaro. There are very few people who really need a stroker in an XJ, and even then, do they really need it? Why not put a supercharged twin turbo with 250hp shot of Nitros on it too.
"There is never enough horsepower......just not enough traction."
#7
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Year: 1990
Model: Cherokee
Engine: The venerable 4.0
My plan (not now my engines in pretty Damn good shape 130000) is to get a jy motor and build it (stroker) on the side. That way I can take my time and my jeep won't have down time.
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#8
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Year: 1998
Model: Cherokee
Engine: 4.0L HO
U can bet a reman motor has been thru a machine shop so if u want your overhaul/rebuild to be successful, your old block/head need to be machined to get max benefit from the new parts.
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Year: 2000
Model: Cherokee
Engine: 4.6 Stroker
Here is the thing with a new one though:
How much longer will you REALLY keep her for? How much longer will her body hold up for? How bad is the rust NOW? Honestly, if you rebuild it the right way, its as good as a new one. And lets be perfectly honest for a moment: Will she still be going strong in another 300K?
PS: In my opinion, a stroker is overkill. Whats the point? Its an XJ, not a Camaro. There are very few people who really need a stroker in an XJ, and even then, do they really need it? Why not put a supercharged twin turbo with 250hp shot of Nitros on it too.
How much longer will you REALLY keep her for? How much longer will her body hold up for? How bad is the rust NOW? Honestly, if you rebuild it the right way, its as good as a new one. And lets be perfectly honest for a moment: Will she still be going strong in another 300K?
PS: In my opinion, a stroker is overkill. Whats the point? Its an XJ, not a Camaro. There are very few people who really need a stroker in an XJ, and even then, do they really need it? Why not put a supercharged twin turbo with 250hp shot of Nitros on it too.
edit: Also, my Jeep is 10x better in sand. Before it just didnt have enough umph to make it up most sand hills. Now it powers up them. So there are plenty of reasons for a stroker.
Last edited by stroked; 08-09-2011 at 11:02 AM.
#11
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Year: 1990
Model: Cherokee
Engine: The venerable 4.0
Originally Posted by djb383
U can bet a reman motor has been thru a machine shop so if u want your overhaul/rebuild to be successful, your old block/head need to be machined to get max benefit from the new parts.
#13
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Year: 1990
Model: Cherokee
Engine: The venerable 4.0
Oh and you HAVE to have the head milled. Good to get the block done too. I would go for a good 3 angle valve job as well.
#14
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The body is good in shape, little to almost no rust. She's beat up a little from the trails *haven't taken her to any tough trails* I'm thinking about doing the stroker. As far as how long i want to have the jeep. As long as she lives she will be driven. *hopefully for years to come* If the body breaks down its nothing i cant fix with a good welder and some spare time. And twin turbos and a shot of nos doesn't sound too bad either. Even tho i'll probably never do it.