Stroker - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ General Discussion Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 12-09-2008, 06:27 AM   #1
Jeeper
 
Join Date: Aug 2008
Posts: 588
Stroker

hey im looking to build a stroker motor out of my 4.0l.....anybody here do that yet.......let me know some specs if so
thanks
-jake

__________________
"its a jake thing you wouldnt understand"

01 tj, custom 4 link f/r, no track bars, 44/9"combo and some 39 tsls on rockathons
flattietj is offline   Quote Quick Reply
Old 12-09-2008, 07:06 AM   #2
Jeeper
 
Join Date: Oct 2008
Location: Lanna, Jawja
Posts: 153
what size? I have a few recipes

Never Monday is offline   Quote Quick Reply
Old 12-09-2008, 07:08 PM   #3
Jeeper
 
Join Date: Aug 2008
Posts: 588
i was thinking the 4.7l....have you actually done it before? i know its doable i just wanna hear from sombody that its worth it
__________________
"its a jake thing you wouldnt understand"

01 tj, custom 4 link f/r, no track bars, 44/9"combo and some 39 tsls on rockathons
flattietj is offline   Quote Quick Reply
Old 12-09-2008, 08:31 PM   #4
Jeeper
 
GrnTJ's Avatar
 
Join Date: Jul 2007
Location: Pinckney, Michigan
Posts: 1,497
Send a message via AIM to GrnTJ
I built my buddy a 4.7 last year. I would deff. say its worth it, if for nothing else, the gains in the torque alone. That things is a beast (300ft/lbs+) but it doesnt do so good on regular so keep that in mind. Your gonna wanna run premium to keep it from pinging. There is a lot to talk about when it comes to strokers so let me know a little more about what you want to know. Give me some specific questions and I will answer them for you. Also, check this place out:
Jeep Strokers • Homepage
__________________
99' TJ-SOLD

Without a Jeep for now...
GrnTJ is offline   Quote Quick Reply
Old 12-09-2008, 08:47 PM   #5
Jeeper
 
Join Date: Oct 2008
Location: Lanna, Jawja
Posts: 153
absolutely worth it. I'm not a fan of a 4.7 for the first build. I worry about future rebuilds and like to keep an overbore in reserve.
Never Monday is offline   Quote Quick Reply
Old 12-09-2008, 09:20 PM   #6
Jeeper
 
jdhallissey's Avatar
 
Join Date: Aug 2008
Location: Gurnee,IL
Posts: 5,104
Send a message via AIM to jdhallissey
Is there a bigger inline 6 you can buy? I was trying to search it, maybe find like a 5 liter then bore it over to a 5.5 or whatever along with toss the old heads back on it and make it a huge monster
jdhallissey is offline   Quote Quick Reply
Old 12-09-2008, 11:00 PM   #7
Jeeper
 
emev0l's Avatar
 
Join Date: Oct 2008
Posts: 198
Quote:
Originally Posted by jdhallissey View Post
Is there a bigger inline 6 you can buy? I was trying to search it, maybe find like a 5 liter then bore it over to a 5.5 or whatever along with toss the old heads back on it and make it a huge monster
There was a 4.2 used prior to the 4.0, you actually use the 4.2 crank in the stroker builds.

"There's no replacement for displacement."

The more cubic inches, or liters, there more power there is to be made. Longer connecting rods, mean more leverage, more leverage means more torque. There is so much more to a stroker motor than just using longer rods and using a crank with rod journals spaced farther than the main journals but it is the basics.

There are other options like using late model V8 motors. There fuel injected and backed by 4 speed automatic transmissions with deep first gears and .75 4th gears. You could gain 5 mpg on the street with a swap like that. There are even companies that modify your stock 4.0 wiring harness to work with the new motor.

It all depends on what you plan to do with your Jeep, and how much money you want to pour into it. If it's off road only, and it never makes it over 55mph, and your not worried about mpg, then throw some 5.13s in it and call it a day, but if your driving it on the street, and you want a lot more power and fair gas mileage, and you don't mind pouring thousands of dollars into your Jeep to get it, than a late model V8 swap might be right for you.

If your on a budget, stroking the 4.0 or buying a supercharger will get the job done. The stroker will be cheaper but the supercharger will be easier.
emev0l is offline   Quote Quick Reply
Old 12-10-2008, 06:29 AM   #8
Jeeper
 
Join Date: Aug 2008
Posts: 588
im not worried about mpg.......i already have 5:13s and 39" tires....and i want to save the weight of a v8.....i will be v8ing my buggy.....my jeep already weighs 4800 so i dont wanna add to much more.........i wanna do the stroker on a budget so i can throw a two speed atlas in there too
__________________
"its a jake thing you wouldnt understand"

01 tj, custom 4 link f/r, no track bars, 44/9"combo and some 39 tsls on rockathons
flattietj is offline   Quote Quick Reply
Old 12-10-2008, 06:38 AM   #9
Jeeper
 
Join Date: Oct 2008
Location: Lanna, Jawja
Posts: 153
If you want a budget build stroker. Consider a 4.5
Never Monday is offline   Quote Quick Reply
Old 12-10-2008, 08:17 AM   #10
Jeeper
 
Join Date: Aug 2008
Posts: 588
what kind of honest to god torque/hp specs will i gain.....is it gonna be noticeable.....i dont wanna dump a grand into it and have the same power.....everything i read online seems to be that it will gain alot but i just wanna hear from somebody that has done it that it actually will
__________________
"its a jake thing you wouldnt understand"

01 tj, custom 4 link f/r, no track bars, 44/9"combo and some 39 tsls on rockathons
flattietj is offline   Quote Quick Reply
Old 12-10-2008, 06:34 PM   #11
Jeeper
 
GrnTJ's Avatar
 
Join Date: Jul 2007
Location: Pinckney, Michigan
Posts: 1,497
Send a message via AIM to GrnTJ
Jake-Like I said, my buddys stroker that i built for him is at 300ft/lbs maybe a little more. It also puts out about 270 hp. You will deff. notice that kind of change. Here is a little run down of what Id suggest you build it with:
4.2 Cranks
4.2 Rods
bored .030" over
.030 over speed pro hyperuectic pistons
port and polished head w/ 3 angle valve job
your choice of high performance cam (Id suggest Crane, its what I used)
26 lb Ford Racing injectors
melling high volume oil pump
headers (help it breath a little)
62mm bored throttle body
Intake of some kind
Intake manifold from a 99+ year 4.0 (best flowing design available)

There are a lot of ways you can do this and certain things can eb changed up a bit. This is by no means a full list at all but jsut to give you some ideas. You rognna have to have some block work done besides being bored over too. You'll have to have the deck milled to get the proper quench height and everything but you should really check out that site I linked in my first post. That will answer all your questions.
__________________
99' TJ-SOLD

Without a Jeep for now...
GrnTJ is offline   Quote Quick Reply
Old 12-11-2008, 04:46 AM   #12
Jeeper
 
Join Date: Aug 2008
Posts: 588
give me rundown on the budget of that build
__________________
"its a jake thing you wouldnt understand"

01 tj, custom 4 link f/r, no track bars, 44/9"combo and some 39 tsls on rockathons
flattietj is offline   Quote Quick Reply
Old 12-11-2008, 06:36 AM   #13
Jeeper
 
emev0l's Avatar
 
Join Date: Oct 2008
Posts: 198
Quote:
Originally Posted by flattietj View Post
im not worried about mpg.......i already have 5:13s and 39" tires....and i want to save the weight of a v8.....i will be v8ing my buggy.....my jeep already weighs 4800 so i dont wanna add to much more.........i wanna do the stroker on a budget so i can throw a two speed atlas in there too
I'm going to have to look the weights up again, but I think it was only a 50-100lbs more than the 4.0
emev0l is offline   Quote Quick Reply
Old 12-11-2008, 01:45 PM   #14
Jeeper
 
GrnTJ's Avatar
 
Join Date: Jul 2007
Location: Pinckney, Michigan
Posts: 1,497
Send a message via AIM to GrnTJ
Im pretty sure he isnt going to do a V8, sounds like he is set on a stroker, which imho is a bit cooler than throwing a V8 in there. Anyway, it probably cost around 1K total Id say.
Depends on where you get the parts from and what kinda deals you can find really so I cant give you a break down of the budget for sure but heres some estimated costs:
4.2 crank $150-$200
4.2 Rods $120
cam $200
block work $120
injectors $100

To be honest dude, you just gotta look arund at prices. I cant really remember what I spent last year but you can find deals if you look around. Especially on the rods, crank, and injectors. And those are probably gonna be the most expensive things besides the header. Pistons I think I paid $20 a piece on summit
__________________
99' TJ-SOLD

Without a Jeep for now...
GrnTJ is offline   Quote Quick Reply
Old 12-11-2008, 08:02 PM   #15
Jeeper
 
Join Date: Aug 2008
Posts: 588
i was actually hoping you would give me a detailed list of what you did so my 4.0 would have the specs that you listed from your buddies....and the reason i dont want to v8 my jeep is b/c it is not as simple as just dropping a v8 in if your gonna do it right....im not gonna put a junkyard motor in my jeep....im not buying a $500 radiator......i dont like ford motors and ive already got a driver drop so a chevy DT is out......I personally dont like mopar motors at least modern ones b/c they are to damned expensive im sure these reasons will get bashed but ive put v8s in jeeps before and i know what it takes and it is not worth it unless ur willing to do it right(as in spend alot of jack)
__________________
"its a jake thing you wouldnt understand"

01 tj, custom 4 link f/r, no track bars, 44/9"combo and some 39 tsls on rockathons
flattietj is offline   Quote Quick Reply
Old 12-11-2008, 09:25 PM   #16
Jeeper
 
jpdocdave's Avatar
 
Join Date: Mar 2008
Location: beach park, il
Posts: 8,162
Images: 7
i wouldn't mind hearing your combo of parts grn that worked well. i know we've talked about the stroker i'm building before. but i will be buying parts soon. any parts that work and others that won't? wrist pins pressed right onto the other rods ok? which bearings worked? regular 4.0 bearings?
__________________
"The danger to America is not Barack Obama but a citizenry capable of entrusting a man like him with the Presidency. It will be far easier to limit and undo the follies of an Obama presidency than to restore the necessary common sense and good judgment to a depraved electorate willing to have such a man for their president."
http://mybroadband.co.za/photos/data...re_cowbell.gif
jpdocdave is offline   Quote Quick Reply
Old 12-11-2008, 09:28 PM   #17
Jeeper
 
emev0l's Avatar
 
Join Date: Oct 2008
Posts: 198
Quote:
Originally Posted by flattietj View Post
i was actually hoping you would give me a detailed list of what you did so my 4.0 would have the specs that you listed from your buddies....and the reason i dont want to v8 my jeep is b/c it is not as simple as just dropping a v8 in if your gonna do it right....im not gonna put a junkyard motor in my jeep....im not buying a $500 radiator......i dont like ford motors and ive already got a driver drop so a chevy DT is out......I personally dont like mopar motors at least modern ones b/c they are to damned expensive im sure these reasons will get bashed but ive put v8s in jeeps before and i know what it takes and it is not worth it unless ur willing to do it right(as in spend alot of jack)
Very true, if you don't do it right which is expensive, you will just regret it. A proper V8 swap is very expensive, then again so is a set of build axles.

I can only see a V8 swap being worth the money, if you plan on keeping it for a very, very, very long time. I will most likely keep my Jeep until there's nothing left, so I don't mind pouring money into it. If I were only going to keep it for 5 years I wouldn't put much money into it, because your never going to get the money you put into a Jeep out of it.

I tend do go overboard on most things, honestly a stroker build will be more than enough for almost everyone. I like the extra power, I like the better gas mileage (only worth it if you keep it a very long time to offset the cost of the V8 swap)

I think my ideal swap would be a late model fuel injected Chevy 350 with 350-375hp backed by a 4L80E overdrive trans, I would be able to keep the 4.11 gears in the axles and run 35" tires. The Jeep would get better gas mileage than stock on the expressway, and would have all the power you need off the road.
emev0l is offline   Quote Quick Reply
Old 12-12-2008, 12:53 AM   #18
Jeeper
 
GrnTJ's Avatar
 
Join Date: Jul 2007
Location: Pinckney, Michigan
Posts: 1,497
Send a message via AIM to GrnTJ
humph, fine I will do some searching again I guess. I shouldnt of opened my mouth

dave- Yea, the pins that those speed pro pistons came with pressed in like butter onto the 4.2 rods. No problems at all. For the bearings your gonna want to use some new Clevite 77 main bearings for the 4.0L block. If you get the 4.2 main's then they wont go in right because the groove that keeps them from spinning is centered on those and offset for the 4.0L. Cam bearings would need to be for a 4.0L obvisouly but the rod bearings (if you decide to replace them, I got the crank and rods fro the same motor which had recently been rebuilt so I reused the bearings for the rods) will need to be for the 4.2L since your using a crank and rods from that engine.

Farily complete break down:
-4.2 crank
-4.2 rods
-Clevite 77 4.0L main bearings
-4.2L rod bearings
-4.0L cam bearings
-Comp cam (I meant comp cams before when I accidently said crane)
-new summit brand lifters
-melling high volume oil pump
-ford racing 26lb injectors (these plug right into the stock harness)
-home brewd 62mm bored throttle body (you can do this on a lathe if you have access to one)
-3 angle valve job and valve seat grinded
-head port and polished
-block hot tanked, decked to set quench height, and bored to match pistons (I went .030" over)
-Speed Pro Hyperuectic pistons (like I said, .030" over in my case)
-engine enamel of your color choice
-New Flow Kooler water pump
-header of your choice (or the stock manifold if you wanna be cheap)
-brass freeze plugs
-Cloyse timing set
-Comp Cams valve spring and retainer kit (I used the stock stuff but Id suggest this if you can afford it)
-new thermostat (Id go for a 180* unit)
-new copper cap and rotor
-new 8mm plug wires
-some nice shinny new plugs
-finally, a full 4.0L gasket kit (make sure it comes with valve seat gaskets or just buy them seperate since most kits dont)

My brain is fryed and its late. If I think of more I will throw it up but that is the basic just of it. Most of that stuff can be found on summit but I siggest hunting for deals on the crank, rod, injectors, oh hell...anything you can find a deal on I guess. Check ebay religiously and you'll spend a lot less like I me. Thats the best way to go. Very few things need to be gotten through an actualy mail order/store. Lastly, if need some links to hard to find parts let me know.
__________________
99' TJ-SOLD

Without a Jeep for now...
GrnTJ is offline   Quote Quick Reply
Old 12-12-2008, 07:16 AM   #19
Jeeper
 
jpdocdave's Avatar
 
Join Date: Mar 2008
Location: beach park, il
Posts: 8,162
Images: 7
thanks man
__________________
"The danger to America is not Barack Obama but a citizenry capable of entrusting a man like him with the Presidency. It will be far easier to limit and undo the follies of an Obama presidency than to restore the necessary common sense and good judgment to a depraved electorate willing to have such a man for their president."
http://mybroadband.co.za/photos/data...re_cowbell.gif
jpdocdave is offline   Quote Quick Reply
Old 12-12-2008, 07:30 AM   #20
Jeeper
 
Join Date: Aug 2008
Posts: 588
yeah thanks......this is exactly why i startd this thread.....to find someone who has had good luck w ith building one and see what they did.....whey you look it up online there are so many options its tough to know which way to go.....thanks again
__________________
"its a jake thing you wouldnt understand"

01 tj, custom 4 link f/r, no track bars, 44/9"combo and some 39 tsls on rockathons
flattietj is offline   Quote Quick Reply
Old 12-12-2008, 07:33 AM   #21
Jeeper
 
Join Date: Aug 2008
Posts: 588
Quote:
Originally Posted by emev0l View Post
I'm going to have to look the weights up again, but I think it was only a 50-100lbs more than the 4.0
100 lbs is alot considering all the tools and spare parts i already carry......i think that the drivetrain combo you would run with a v8 would be much heavier than a jeep(more than 100lbs)
__________________
"its a jake thing you wouldnt understand"

01 tj, custom 4 link f/r, no track bars, 44/9"combo and some 39 tsls on rockathons
flattietj is offline   Quote Quick Reply
Old 12-12-2008, 08:13 AM   #22
Jeeper
 
emev0l's Avatar
 
Join Date: Oct 2008
Posts: 198
Quote:
Originally Posted by flattietj View Post
100 lbs is alot considering all the tools and spare parts i already carry......i think that the drivetrain combo you would run with a v8 would be much heavier than a jeep(more than 100lbs)
Here's a link to a motor swap fourwheeler did, it's a 5.7 Hemi. The 5.7 only added 57lbs.

The transmission swap to a 4L60E will add about 40lbs. If you were really worried about the weight the 700R4 weighs 5lbs less than the AX15.
emev0l is offline   Quote Quick Reply
Old 12-12-2008, 11:38 AM   #23
Jeeper
 
GrnTJ's Avatar
 
Join Date: Jul 2007
Location: Pinckney, Michigan
Posts: 1,497
Send a message via AIM to GrnTJ
No problem. Let me know if you run into anymore questions but its not really that hard, just tedious. Its a lot of work but its worth it for sure.
__________________
99' TJ-SOLD

Without a Jeep for now...
GrnTJ is offline   Quote Quick Reply
Old 12-12-2008, 07:00 PM   #24
Jeeper
 
Join Date: Aug 2008
Posts: 588
Quote:
Originally Posted by emev0l View Post
Here's a link to a motor swap fourwheeler did, it's a 5.7 Hemi. The 5.7 only added 57lbs.

The transmission swap to a 4L60E will add about 40lbs. If you were really worried about the weight the 700R4 weighs 5lbs less than the AX15.
how about a compatible tcase.....im not gonna replace a junk chain driven with another and im sure as hell not keeping the 231.....i would run a 205 if running a chevy drivetrain and then i would have trouble adapting a ford passenger drop tcase to match with my built up hp d44....all in all i have a thousand reasons why a v8 is not for my jeep
__________________
"its a jake thing you wouldnt understand"

01 tj, custom 4 link f/r, no track bars, 44/9"combo and some 39 tsls on rockathons
flattietj is offline   Quote Quick Reply
Old 12-18-2008, 10:19 PM   #25
Jeeper
 
Join Date: Aug 2008
Posts: 588
anybody feel comfortable with a motor that two of the ears(for bolts) need welded back on.....buddy of mine has an 01 4.0l motor with 70k on it for 250 with said problem.....ive got a buddy that owns a shop that specializes in welding cast and am just wondering about other peoples opinions on using this as a basis for my stroker
__________________
"its a jake thing you wouldnt understand"

01 tj, custom 4 link f/r, no track bars, 44/9"combo and some 39 tsls on rockathons
flattietj is offline   Quote Quick Reply
Old 12-19-2008, 12:04 AM   #26
Jeeper
 
GrnTJ's Avatar
 
Join Date: Jul 2007
Location: Pinckney, Michigan
Posts: 1,497
Send a message via AIM to GrnTJ
Whats wrong with using the 4.0l thats in your TJ now? I probably wouldnt risk putting all the $$ and time into an engine that needed the ears welded. Thats just me and I think you can find a similar deal if you look around some more. Try to find a blown engine that threw a rod through the oil pan or something and go from there. You can get those for super cheap at scrap yards and you need to replace the rods and crank anyway. The only extra part you'd need from a noraml stroker would be a new oil pan. And Id say you could get something like that for usually about 100 bucks too. No matter how strong a weld is Im not sure Id trust it when it comes to such a high cost build. My 2 cents
__________________
99' TJ-SOLD

Without a Jeep for now...
GrnTJ is offline   Quote Quick Reply
Old 12-19-2008, 11:40 AM   #27
Jeeper
 
jpdocdave's Avatar
 
Join Date: Mar 2008
Location: beach park, il
Posts: 8,162
Images: 7
i dunno, if he really specializes in welding cast, and its just for the mounting holes, nothing more critical i'd make my decision on the cost. is your buddy doing it for free?

if it is welded properly, it will be as strong, or stronger than originally. and if your buddy specializes in it, he will know if it will work well or not.
__________________
"The danger to America is not Barack Obama but a citizenry capable of entrusting a man like him with the Presidency. It will be far easier to limit and undo the follies of an Obama presidency than to restore the necessary common sense and good judgment to a depraved electorate willing to have such a man for their president."
http://mybroadband.co.za/photos/data...re_cowbell.gif
jpdocdave is offline   Quote Quick Reply
Old 12-19-2008, 07:06 PM   #28
Jeeper
 
Join Date: Aug 2008
Posts: 588
he owns fortin ironworks here in columbus and they specialize in welding cast iron.......i understand the interest in a higher mile 4.0l that threw a rod but this one is complete with the same dis system and all............i think itll be worth it but ill probably offer him 150 first
__________________
"its a jake thing you wouldnt understand"

01 tj, custom 4 link f/r, no track bars, 44/9"combo and some 39 tsls on rockathons
flattietj is offline   Quote Quick Reply
Old 12-19-2008, 09:06 PM   #29
Jeeper
 
Jrzymilitia's Avatar
 
Join Date: Jul 2008
Location: Toms River...Jersey shore
Posts: 501
Mt be a stupid question but..Do they make a stroker kit for a 2.5l motor..I wouldnt think so but just asking
__________________
* New Jeep *
2000 TJ
6cyl 5 speed
3.73 Gears
4" Rough Country Lift
2" Skyjacker Body Lift
ARB Front bumper
2 IPF Fog Lights
35" Hankook
Dick Cepek DC-1's
Flowmaster Catback
Safari snorkel
Full Audio system
Jrzymilitia is offline   Quote Quick Reply
Old 12-19-2008, 10:41 PM   #30
Jeeper
 
GrnTJ's Avatar
 
Join Date: Jul 2007
Location: Pinckney, Michigan
Posts: 1,497
Send a message via AIM to GrnTJ
Yea, Id say if it comes with everything then go for it and hope you can get it for cheaper than 250 becaue I dont think Id pay that much for it but might as well go for it since you already found it. I do agree that a proper weld can be stronger than the original casting. If your buddy can do it farily cheap and you dont end up spending too much for the motor itself than go for it.

Jrz-Unforutnatly, there is no stroker kits for a 2.4l. Just about the only way to get decent power from a 2.4 is to install a supercharger on it. This is impractical because, although they make them for the motor, its more cost effective to just install a 4.0l instead. But if you want to keep your 4 banger for some reason then Id look into the supercharger, but again, its basically a flush of money considering the other options for the price.

__________________
99' TJ-SOLD

Without a Jeep for now...
GrnTJ is offline   Quote Quick Reply
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
rebuilding your engine?? Get Stroked!!! jeeper95yj YJ General Discussion Forum 6 01-01-2014 04:47 PM
Wanna Make my jeep beast in the engine department ! Wrangla416 TJ General Discussion Forum 63 08-04-2010 02:41 PM
4cyl stroker? herbert.weaver YJ Tech Forum 15 01-16-2009 12:31 PM
Stroker build 4.0l sahara TJ General Discussion Forum 6 03-25-2008 08:42 PM
YJ TRANSMISSION OPTIONS w/ STROKER jpdocdave YJ Tech Forum 8 03-12-2008 10:48 PM



» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 07:46 PM.



Jeep, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC