chevy 350 swap
- Thread starter sittin_high
- Start date
John D
NAXJA Member # 788
- Location
- Rockford, Mi
5.3L/4L60E
That IS a loaded question... there were many parts that were easy, there were many parts that were a real pain. Nothing that can't be worked through if you want to do it though.
Definately not a weekend project, like projectTK said... plan it as a winter project. I did mine from March to September this year. It could have been faster, but I have a life and I like to do things with cash not credit
That IS a loaded question... there were many parts that were easy, there were many parts that were a real pain. Nothing that can't be worked through if you want to do it though.
Definately not a weekend project, like projectTK said... plan it as a winter project. I did mine from March to September this year. It could have been faster, but I have a life and I like to do things with cash not credit
wolfpackjeeper
NAXJA Forum User
- Location
- 500' and 500KCAS, RAF lakenheath
I would go with the 5.3 truck option, find a wrecker and you can get more ponies for less dough
5.3L/4L60E
That IS a loaded question... there were many parts that were easy, there were many parts that were a real pain. Nothing that can't be worked through if you want to do it though.
Definately not a weekend project, like projectTK said... plan it as a winter project. I did mine from March to September this year. It could have been faster, but I have a life and I like to do things with cash not credit
JEEP PORN!
- Location
- WA state
This is a good start considering the truck engines are cast iron VS alum. (can take more abuse/boost).
I would recommend, if possible, to go with a LQ 4/9 6.0L truck engine. These are basically the same as LS2, but cast-iron as I stated already. The LQ4 has a lower CR, but the same power. Swap on either a stock or FAST LS style intake, andyou are rocking with no mods necessary, unless you choose to do so. A pro-charger would fit nicely (=
John D
NAXJA Member # 788
- Location
- Rockford, Mi
Not everyone lives in an emission tested area... Otherwise, there are lots of people who have done "emission legal" swaps into vehicles. Just depends on how you go about it. I would guess a carb'd V8 swap into an '01 would be begging for trouble in the emissions area.
Wow
NAXJA Forum User
- Location
- Over there!
Where I live if you have a pre OBD-II computer, they just put the sniffer in your tailpipe. You can pass with a carbed V8 as long as it's running efficiently enough to pass and you have a cat installed, which isn't hard these days. They don't check under the hood, they only use a mirror to look for the cat. I recently got an address outside the emissions boundry here and my first project is to remove all the emissions crap from my vehicles.
An all aluminum 330+hp 5.3L engine would be SO sweet in an XJ...
(import one of those 4 cylinder "Super Cherokees" from China and drop a 5.3L in it.....oh my god that would be cool)
An all aluminum 330+hp 5.3L engine would be SO sweet in an XJ...
(import one of those 4 cylinder "Super Cherokees" from China and drop a 5.3L in it.....oh my god that would be cool)
John D
NAXJA Member # 788
- Location
- Rockford, Mi
He said it was in an '01, OBD-II is '96 up. The carbed V8 is going to have a very difficult time if not be impossible to be emission legal in an OBD-II car.
Emissions aren't crap, they're a good thing. If you can figure out how to work with them you will be better off. Besides not stressing every year about your sniff test... remember its you and your friends/family that are slowly crawling down the trail sucking in all the bad air coming out of your Jeep.
John D
NAXJA Member # 788
- Location
- Rockford, Mi
I had trouble with everything! Kidding... sorta. Michigan doesn't have any emission testing at this time. The only trouble I had was an O2 circuit (I run all four) problem which I fixed, and EVAP stuff which I am still working through. I am running single exhaust and a single cat so I am trying to figure out a way to program out one of the downstream O2 sensors and have the computer look for info from one. It stands to reason I will get slightly better fuel managment with one downstream O2 sensor making corrections. The EVAP stuff I don't think will be real bad I just haven't gotten around to it yet. Lots of info over here http://www.ls1tech.com/forums/conversions-hybrids-28/ A lot of 5.3L stuff comes up in there.
Wow
NAXJA Forum User
- Location
- Over there!
Most of the country does not live in an emissions controlled area.
No, the emissions crap on my Jeep, and especially my old trucks, is crap. It is poorly designed, old, and worn out. If I remove all this crap the engine will run more efficiently and get better gas mileage. I'd be willing to bet I could still pass a sniffer test too. I'm not stressing about anything, like I said, I don't have an emissions test.
wolfpackjeeper
NAXJA Forum User
- Location
- 500' and 500KCAS, RAF lakenheath
this is where someone is supposed to chime in and say that it is a federal offense to remove regulatory emissions control components from an application that was designed to utilize them...
because, you know, it is.
because, you know, it is.
Yeah he would know too since he built his. Oh yeah I just went there.
I guess you're that someone.
Wow
NAXJA Forum User
- Location
- Over there!
So I guess it's a federal offense then to put a V8 in an XJ, period. But then again, I don't care in the slightest...
(if someone calls the feds and says I took off my cat, I doubt they are going to come investigate)
wolfpackjeeper
NAXJA Forum User
- Location
- 500' and 500KCAS, RAF lakenheath
That is horrible logic, why would the government have any regulation about putting a v8 engine into a Jeep Cherokee? Thats just silly. As long as the V8 has emissions equipment that is compliant to the level required of the vehicle you should be kosher. If you want to get real high speed you could decide which platform, the vehicle or the drivetrain had more stringent regulations and follow those to minimize any hassle.
I do doubt that the feds would care if someone called them. Depending on how populated and cash-strapped your county is, I would not put it past the local boys in this day and age though. Technically any shop that notices the problem is obliged to report it. I doubt it will ever affect your life, nor do I care. I will point out that unless you are an expert in thermodynamics and vehicle emissions designs, the chances of you knowing more than the designers is pretty small. You may also want to have a diagnostics shop equipment compliment handy in order to test your theories.
Wow
NAXJA Forum User
- Location
- Over there!
I have, for example, a 1979 Chevy truck with the 350, and a RIDICULOUS emissions system. Even the manufacturer, and the EPA, would both agree that it is a horrible design today. It uses a ridiculous smog pump, using extra HP/gas to pump air into the exhaust stream, even though I don't have a cat. (from the factory)
With a modern carb/intake setup, good exhaust system, and a generally well tuned engine you should be burning cleaner than that system did in 1979 without it. Especially if you're using 10% ethanol gas, like most of us are, instead of leaded, as recommended in the manual. That used to be the old trick to pass an emissions if you couldn't - add some alcohol to the tank.
The stock emissions system in an XJ isn't much better, especially in the older ones.
wolfpackjeeper
NAXJA Forum User
- Location
- 500' and 500KCAS, RAF lakenheath
yes but how do you know? I can stand around all day and spout stuff off about how it "should" work. Reality may be something entirely different. For example, I agree with you on the smog pump issue. Running a properly tuned truck on the right grade of quality gas, through a functioning system is worlds better than running a badly adjusted carb on craptastic gas. But how do you know that the system's emissions efficiency could not be improved with a modern designed High flow converter?
Then end scenario, is that you are going to be spending a grand or two in order to get any sort of swap in a functioning well. What is another hundred bucks for 2 magnaflow bullets? Their effect on performance is going to be marginal, and it helps to give our sport a better image. It also smells much better.
Then end scenario, is that you are going to be spending a grand or two in order to get any sort of swap in a functioning well. What is another hundred bucks for 2 magnaflow bullets? Their effect on performance is going to be marginal, and it helps to give our sport a better image. It also smells much better.
Wow
NAXJA Forum User
- Location
- Over there!
It's not the converter that's the problem. It's all the extra crap attached to the engine and other things before the cat that make problems and solve none.
x2. If you are going to put this much time and effort into doing an engine swap, you might as well atleast TRY to have some sort of emission equipment.
Otherwise you will just have some sloppy hill-billy install.
If you look at John's install he has done a very good job of fixing up his emmisons equipment and he has a VERY clean install.
