Poor Mans Stroker Keith Black 424 Hypereutectic

[Seniorgreenpants]

So I have been trying to research as much as I can. So far my budget build is based as tightly as I can to the Poor Mans Build. This is going into a stock 2001 cherokee

Jeep 4.2L 3.895" stroke crank
Jeep 4.0L 6.125" rods
KB424c.030 27.5cc Dish (the dish is worse than a d because of detonation )
CAM Stock 01 OEM
DIY Port and Polish 57CC Cylinder head
Mopar/Victor 0.043 Gasket
Deck Clearance .003-.007
Injectors Bosch 12 pintle 0280156161 22.8lbs @43.5 lbs
Exhaust Stainless steel shorty style headers
62mm throttle body

Should I get a cam shaft? It seems that the budget build doesnt "Need" it. Im trying to make this Bullet Proof and avoid staring at a CEL.

I found Info about other Keith Black pistons just havent seen any info on these ones yet. Hoping to keep price down. I know that i cannot get everything i want buy not spending money.

[SkylinesSuck]

I would do at least a mild cam. I had the largest cam Comp made on a stick ecu and it didn't throw a code, so that's not an issue.

[Cheromaniac]

Get a set of custom pistons from Russ Pottenger that'll give you a tight quench and a CR of ~9.5:1.
The poor man's build doesn't "need" the stock cam. The idea is that you simply reuse your old one to save yourself some money. However by now, most will have racked up over 100k miles so it's probably better to replace it, and Russ can offer you a lightly modified CompCams 68-232-4 cam that'll work with the stock valve springs.

[Seniorgreenpants]

Financially I need to be based around the price point of the Poor Mans Stroker.

If I get pistons and rods from russ im adding 600 to my total over all parts build. I get having a tight quench but I was going to have my block decked anyways due to what is my perception of a previous owners battle with overheating. My factory head came back fine.

I have been talking to russ, he is a wealth of information.

With the factory cam im at 9.02:1 static and 7.79:1 dynamic

If I use the 68-232-4 Im At 7.74:1 dynamic

If I use russ' grind i jump to 8.56:1 if im using the calculator correctly and a IVCA of 33* unsure if that is correct. pardon my ignorance.

Is the nitride coating a necessity? If I Use proper cam break-in shouldnt that be okay. I have heard of cam lobes being wiped out but would the coating prevent that completely, or does it just mitigate it some what?

Also lastly besides arp rod bolts and new head bolts, should I be looking at any other valve train component replacement? springs, keepers, push rods, valves? (again trying to be frugal)

Thanks Jeep Strokers.

[RockyMtn96XJ]

Old thread, but I'm looking at these pistons also, but in a 0.020 over.
Anyone have anything good or bad to say about this?
I have my NEW 258 crank, using my 4.0 rods, etc... Ready to get this stuff to the machine shop...

This is my first post here, but I've been on another jeep forum for a few years, and been reading up on strokers for a good while also.

Motor is out and just need to get the old crank and rods/pistons out, cam, etc. Head is disassembled and thats getting checked out, lapped if necessary, etc...

I'm using the modified poor mans recipe.

I will add a cam if money and time allow. I wanna get this going before the snow season starts here in Colorado. My Camaro doesnt do well in the snow

[75SV!]

There's a new KB piston. I'd check out Cleggs Stage 2. So, a full stroker for the same price.

[RockyMtn96XJ]

I'm having trouble locating the new pistons.... do you have a part number?

[RockyMtn96XJ]

Is it the KB438 that are new? Theres only one or two places that are selling them, Clegg for $379, and Summit for $316, but says "will ship from manufacturer on the 7th". I'm perfectly fine with the delay, just want to make sure I'm getting the correct pistons from them for $63 cheaper. This is a kit with rings.

I'm getting some conflicting info on them as well. Th clegg website says theyre a 9.3 CR, but the UEM website says theyre 8.8 CR. Same pin height of 1.353 and dish of -21. The summit website doesnt say. I live a mile up in altitude and would like to make sure I get a piston for good CR. NOT a -27 dish!!

[75SV!]

Can't really answer the question. I did see some other sets. Here's one on EBay:
https://www.ebay.com/itm/265657207970?m ... 5a406b62c3
9.6;1 CR. ???

[RockyMtn96XJ]

Yeah thats them that I'm finding. I believe thats the route I'm taking ASAP.

Thanks for that info of the new pistons!