So what is your setup?

Newbies, and basic Stroker Recipes... Get started with your first stroker here!!
User avatar
Cheromaniac
I live here
I live here
Posts: 3208
Joined: March 8th, 2008, 12:58 pm
Stroker Displacement: 4563cc
Vehicle Year: 1992
Vehicle Make: Jeep
Vehicle Model: Cherokee
Location: Cyprus
Contact:

Re: So what is your setup?

Post by Cheromaniac »

My set-up's in my sig. Runs on 95 octane RON without pinging even in 115*F heat. Would I change anything? Yes, two things:

1. Use the '96+ stock cam with 1.7 roller rockers (more torque at lower revs, as if I don't have enough already!)
2. Use longer 4.0 rods with custom hypereutectic pistons for zero deck clearance, keep CR the same at 9.25:1.
1992 XJ 4.6 I6 - 5MT - Stroker build-up, Stroker "recipes" Sold
1995 Mustang GT - 4AT - Modded Sold
2006 Mustang GT - 5MT - Modded Midlife Crisis Car :mrgreen:
stroked'73
Making Progress
Making Progress
Posts: 79
Joined: March 30th, 2008, 1:35 pm
Stroker Displacement: 4.6L
Vehicle Year: 1973
Vehicle Make: Jeep
Vehicle Model: Wagoneer
Location: Montpelier, Vermont

Re: So what is your setup?

Post by stroked'73 »

I have pretty much a simple setup. 4.0 bored .040 over, head planed .010 to fix warpage, stock pistons, 258 crank and rods. According to the calculator, I've got 9.7 CR, a horrible .100 quench, etc. I've got the compcams 68-231 cam with stock springs. Not real pretty but it works OK. It's carbureted with a quadrajet and an offy dual-port. I run 93 octane and it doesn't ping if I retard the timing enough! :( I live easily under 1000' sea level.

I would change:
- My attitude next time and not be so %&$#@ cheap!!! :doh:

- I'd dish my pistons some and deck the block for better quench for less pinging.

- Probably spend the extra cash and get the mopar spring set.

- look into getting a cam with even better off-idle power - that's where I do all my driving. Although I'm hoping the q-jet and dual-port manifold will help with the off-idle response.
1973 Jeep Wagoneer - 4.6L basic stroker, Q-jet/Offy dualport, Comp 68-231, .043" HG, 9.79 scr/8.56 dcr, crappy quench
kris
Learning to use the board
Learning to use the board
Posts: 33
Joined: March 19th, 2008, 11:33 am

Re: So what is your setup?

Post by kris »

eliv1 wrote:
tigerShark wrote: i wouldnt really call this a "stroker". youve got the standard stroke for your 258 block. cool steup though. how much overbore is that?
it is exacly a stroker, just 258 block. since it is a 258 crank, and 4.0L standard pistons (0.125" overbore) giving the displacment of 4.5L.
Well guys, this is exactly a stroker. Check your AMC I-6 history.

The 258 is a "stroker" by production. The 258 is a "stroked" 232 having the same bore but the stroke being increased from 3.50" in the 232 to 3.895 in the 258. These engines were built simultaneously and offered as the base and optional engines. The 232's stroke is longer than the 242/4.0 by .090" but is uses the same rod length so you could also say that a 4.0 is a bored and de-stroked 232.

Ill agree that boring a 258 is not usually advisable but he worked with what he had available.

Is an engine not high enough performance if the block casting came with a fuel pump opening ?
What about the rumored mexican 4.5's... A 258 crank, 4.0 bore, and a fuel pump on the side of the motor ?

Why the debate here ? I thought that was what the yahoogroup was for. ;)

kris.
User avatar
Cheromaniac
I live here
I live here
Posts: 3208
Joined: March 8th, 2008, 12:58 pm
Stroker Displacement: 4563cc
Vehicle Year: 1992
Vehicle Make: Jeep
Vehicle Model: Cherokee
Location: Cyprus
Contact:

Re: So what is your setup?

Post by Cheromaniac »

My sig. says it all. The engine doesn't ping on 89 octane at sea level.
Would I change anything now? No. I'm very happy with my stroker.
Could I have built my stroker differently? Yes. I could have used the '00 cam and timing set that came with the donor short block and added 1.7 YT roller rockers instead of 1.6's.
1992 XJ 4.6 I6 - 5MT - Stroker build-up, Stroker "recipes" Sold
1995 Mustang GT - 4AT - Modded Sold
2006 Mustang GT - 5MT - Modded Midlife Crisis Car :mrgreen:
User avatar
oletshot
Donator
Donator
Posts: 221
Joined: February 14th, 2008, 11:47 am
Location: Chicagoland

Re: So what is your setup?

Post by oletshot »

Well guys, this is exactly a stroker. Check your AMC I-6 history.

The 258 is a "stroker" by production. The 258 is a "stroked" 232 having the same bore but the stroke being increased from 3.50" in the 232 to 3.895 in the 258. These engines were built simultaneously and offered as the base and optional engines. The 232's stroke is longer than the 242/4.0 by .090" but is uses the same rod length so you could also say that a 4.0 is a bored and de-stroked 232.

Ill agree that boring a 258 is not usually advisable but he worked with what he had available.

Is an engine not high enough performance if the block casting came with a fuel pump opening ?
What about the rumored mexican 4.5's... A 258 crank, 4.0 bore, and a fuel pump on the side of the motor ?

Why the debate here ? I thought that was what the yahoogroup was for.

kris.
I still disagree, not that it really matters. If his block had left the factory as a 232, then yes, it would be a stroker, but it didn't. It was stamped as a 258, boring it to 3.875" does not make it a stroker. It's an overbored 258, splitting hairs, maybe, but the way I read it, that's the definition. If he took a 232 block, put that 258 crank in there, bored it to accept 4.0 slugs, then he would have the exact same engine he has now, but it would be a stroker.

I'm definitely NOT saying he is unwelcome. I hope evil1 doesn't feel that way.
I'm not clever enough to have a clever signature. I'll just steal yours.
'98 XJ 2-door, '94 YJ.
User avatar
FrankZ
Making Progress
Making Progress
Posts: 93
Joined: April 3rd, 2008, 6:44 am
Stroker Displacement: 4.6l

Re: So what is your setup?

Post by FrankZ »

Sinbad
Posts: 4
Joined: August 26th, 2008, 12:53 pm
Location: Fayetteville N.C.
Contact:

Re: So what is your setup?

Post by Sinbad »

First, like the site should have found it before the build.
93 4.0 original in my yj
258 crank turned 0.10 mains and throughs
.030 over bore
mopar stage one cam
matching springs
24lb injectors
surface head
valve job
plastaguage berrings
factory oil pump
I have a 01 up intake not installed yet.

Should have
decked the block

Absolutly love the power off road low end tourque is awsome. I still get 16mpg average with 33x12.5-15 4.11 gears and manual trans. It has lifted the lf tire in a turningtake off. ;)
User avatar
amcinstaller
I love JeepStrokers.com!!
I love JeepStrokers.com!!
Posts: 615
Joined: May 22nd, 2008, 11:57 pm
Stroker Displacement: 4.6L
Vehicle Year: 1980
Vehicle Make: AMC
Vehicle Model: Spirit
Location: Red Deer, AB, Can

Re: So what is your setup?

Post by amcinstaller »

any dyno numbers on any of these builds??
1980 AMC Spirit Restomod in Progress
SilverXJ wrote:Roller rockers won't help that mess you have created. Nor will God for that matter.
User avatar
seanyb505
Donator
Donator
Posts: 447
Joined: February 16th, 2008, 9:34 am
Stroker Displacement: 280ci
Vehicle Year: 1997
Vehicle Make: Jeep
Vehicle Model: Cherokee
Location: West Palm Beach Florida

Re: So what is your setup?

Post by seanyb505 »

4wt 258 crank
4.2 rods
Silvolite 2229 Pistons dished 30cc .030 over
Isky 133125/26 cam .453"/.465" lift
Crower camsaver lifters
24# injectors from Lincoln Mk VIII
Reused stock springs
Deck milled .045
Head milled .015 (total milled amount makes .060 rocker arm shims convinient to use)
.052 Headgasket
.0565 quench
8.98:1 Compression ratio
Bright Chrysler Hemi Orange Paint! (Good for 75 hp, at least)

Its not quite broken in yet so I havent fully explored the limits, but it is a very smooth running engine. First tank is premium, no pinging; I will lower the grade in subsequent fill-ups. No dyno numbers. If you want them you can pay for them.

I would change:
Not buy pistons that were already dished out, buy the same pistons new and have them dished to 26 to get 9.33 CR and take advantage of smaller quench.

I probly will change:
Port and polish spare head laying in my bedroom. Im assuming since I havent taken it above 3500 I will have valve float with reused stock springs, so Ill probly install whichever springs Isky recommends. Try to locate .043" Head gasket to get CR to 9.13. Small improvement, but improvment nonetheless.
Now I can be like all those other awesome people with more than one Jeep in their sig, but now I have to say one of them is sold:(
97 XJ 4.6
90 MJ 4.0 - sold

I want to have as many Jeeps as children. DD, offroader, drag MJ and another one. 4=4
User avatar
Heck
Donator
Donator
Posts: 57
Joined: February 15th, 2008, 6:06 pm
Stroker Displacement: 4.6
Location: McCurtain County, Ok
Contact:

Re: So what is your setup?

Post by Heck »

Well, I did get to do it differently.

Started out with stock bore and pistons, 4.2 crank and rods, and a crane cams CRN-753905 (for a lower "dynamic CR"). Just not the torque I had hoped for, lots of piston noise.

v2.0- 4.2 crank, 4.0 rods, kb944 pistons .030 over, and a mopar P4529228ab "RV" cam. This is the ticket. Now I'm worried about u-joints and axles instead of ping and piston slap.

Bottom line- $480 for pistons only sounds like a lot of money. They're really the way to go.
I NEED MORE TORQUE!

'03 Rubicon w/4.6: kb944 pistons, late 70's 4 weight crank, Mopar P4529228ab cam, 240 dur./.430 lift, barely polished head. First fire 11/14/08, no mechanical issues so far.
User avatar
SilverXJ
Global Moderator
Global Moderator
Posts: 5790
Joined: February 14th, 2008, 7:14 am
Stroker Displacement: 4.6L
Vehicle Year: 2000
Vehicle Make: Jeep
Vehicle Model: Cherokee
Location: Radford, Va

Re: So what is your setup?

Post by SilverXJ »

Heck, you think the KB944s + 4.0L rods develop that much torque than a 4.2 rod setup? KB told me that when I was asking querstions before I purchased. From what I read the longer rod will give you more torque, but I didn't think it would be that more noticable.

Also, I probably asked you this already, but what piston clearance did you install them at?
Post Reply

Who is online

Users browsing this forum: Ahrefs [Bot], Bing [Bot] and 0 guests