Ok I know this has been covered more than it should be but I'm thinking of stroking my engine when I get the junkyard one, seeing as I was already planning on rebuilding it I figured I might as well have some fun with it. Now I've searched here and straight Google for stroker setups but I keep leaving each page more confused than before,I know there's a simple low budget 4.5l stroker using the 4.2l crank and rods, does it use exactly stock pistons or do they need to be dished? Also I keep seeing back and forth on the camshaft, stock or aftermarket? I've searched for cams and found all saying not for fuel injected or computer controlled so is this a dead end or bad information?

 

https://www.cherokeeforum.com/f2/how...troker-163783/

 

This does not help if my original post was read thoroughly, I stated I have searched and read and I just need simple versions of answers, posting links doesn't help me when I've looked at all of them. And it just shows that nobody has any real information which means they shouldn't contribute

 

Really?!?!

In the amount of time it took you to reply is very obvious that you didn't bother to click on any of the links it the thread I provided.

Did ya just get pissed because you'd actually have to read?
Click on the link and READ the other links that can be found there.

Every one of your questions will be answered if YOU put forth the most miniscule amount of effort.

 

When the subject has been covered as many times as it has its just kinda weird that you've read ALL the threads on the subject and still don't know questions that simple. Go over to jeepstrokers.com and search and read until your tired of it because theirs a lot to learn before you attempt a build.

 

I'm gonna do what I do best and do this **** my own way since it seems to be such a chore for everyone to help clarify information for someone asking for simple help

 

Ok I am going to post a link. Don't get angry its just to show you where I am getting my information since you couldn't find it.

http://jeep4.0performance.4mg.com/stroker.html

1. 4.2L crank + rods with Sealed Power 677CP pistons (not overbored). Dishing is up to you based on the compression ratio you want to run. A higher dish will lower your compression ratio

2. The camshaft is completely personal preference on whether you want to save money and what you expect from the engine. Most people that use aftermarket cams report failures because of the lobe width. Mopar 228/229 cams have wider lobes and I haven't read of any failures.

Lots of info out there just have to read and comprehend. Maybe read some more and then reread what you read.

 

I've read through that site many times, like I said I've searched and just need clarification on the questions I asked, I'm not mad at anyone I'm annoyed at the lack of human capacity to help their fellow man understand when they have trouble and that's exactly what forums were made for TO HELP THOSE THAT NEED IT not to make them feel like **** for needing help.

 

Did I not offer enough clarification? What else are you wondering about?

You asked about stock pistons and I answered with a stock replacement piston that would build your 4.5. I am not going to tell you what to dish them too because there too many variables with quench and cam. What compression ratio are you shooting for? Do you want to stay on 87 octane?

You asked about cams and I explained its up to you. What else are you wondering about the cam? It doesn't change your liter size of your motor just how it breathes.

 

Most of that wasn't directed completely at you, I would like 87 octane but worse case I can run octane booster to make up the difference if need be, the cam question is because they say not compatible with computer or FI and a can would help, I don't plan on running an extreme choppy race cam but a nice mild street cam will help, if the issue is vacuum signal to the map sensor that can be fixed but if there's more to it than that then I need help knowing why do I can decide if it's worth it or not.

 

If you are asking about exact stock pistons they will increase your compression ratio to 9.7:1 and purportedly ping with a stock cam

http://www.jeepstrokers.com/forum/vi...php?f=15&t=377

That is a thread on "Very Basic 4.5L Build"

Dino suggests the SP677CP which are now sold as Z677AP with a 17.5cc dish. With those pistons on 4.2 crank and rods you would have about a 9.2:1 which you could probably run on 89.

 

When i rebuild I am put a Mopar 229 cam from Jegs in. From my searching I have yet to find a cam failure and it should build better torque in the low and mid range.

This is a good thread on cams. Just keep in mind they are talking about a stock motor.

http://www.jeepforum.com/forum/f11/v...roker-1535588/

Also this is a handy tool and I believe all of the Cams listed at the bottom work on an FI 4.0, including the comp 231.

http://www.jeepstrokers.com/calculator/

 

a cam, depending on CR, will help a stroker breathe a little easier. i don't understand what else you want to know either...your questions and responses are as clear as mud. if you are building a stroker, but are wondering if a cam is 'worth it or not', maybe you should reevaluate the purpose of building a stroker to begin with. or just get out your wallet...

 

Worth it meaning with the headache I see regarding vacuum issues from running aftermarket compared to stock causing map sensor to register wrong. If there's a cam that won't cause such problems point me to it, it seems that there's also an issue with skinny lobes on some cams changing actual performance. Like I said multiple times I'm reading all the articles and links for this but with so much inconsistent information it makes it hard to buy proper parts, the biggest reason is that when people find what works they don't report back to let others know they work on the mentality of "I had to find it for myself so everyone else does too"

 

And just for reference this isn't my first engine build but it is my first jeep builds which has very limited upgraded parts available making this more complicated than say a Chevy 350ci