Breaking down our Jeep XJ stroker Build

[@jojii]

Would love to see a follow up video going through all the non engine parts of the build, including the new suspension. Thanks for sitting down and talking about the build.

[@willnewberry2347]

Can we have a dyno run? Would love to see how much power the stroker is putting down.

[@keithlucas6260]

You can expect at least 240 horsepower to 300 depending on actual compression numbers.. Stage 2 and 3 on these engines are making it a 4.7 with horsepower numbers at 400 to 700 depending on added components. Just remember to remove all the drive train components and upgrade to one ton units along with the suspension.

[@michaelw.5921]

700 hp? I’m hopeful as a Jeep owner but very skeptical. There is just no way given dimensions

[@MedicatedOMO]

@@michaelw.5921 It has been done several times with great results.

[@moparedtn]

All I know is whatever *Davin* gets into next, I'll be there as always, watching. Best damn show on Hagerty, period. *Thank You* Hagerty for putting him on his own show! P.S. Scrolling back through the comments from viewers in the live chat, I know one thing: I'm never going to visit the American Cherokees USA KZbin page. (You're welcome "Jeepers Delight"). - Ed on the Ridge

[@jimfuller5309]

I have a 300,000 + 95 Cherokee with the 4.0 still runs great but would love to do this to it!! Super cool!

[@TheOrgfatty53]

Any thoughts on selling the Jeep? Loved the attention to detail and very interested if it needs a home!!

[@jwszewczyk]

I'm not one to be too concerned with "engine" or "motor" and I also use them interchangeably. I am however one of the "I'll never use an orange Fram filter again" due to a bad experience with the material coming apart internally. Baldwin, Wix, Napa which is Wix, or an OEM will continue to get my money. Even if it is just peace of mind.

[@larryshipman248]

Super interesting. Amazing how easy you made it look,

[@EvilMouse068]

Hey Davin, is there any way I could get your build list on this or is there somewhere I could go to find it? I've been wanting to do a stroker on my 4.0 for awhile now.

[@michaelatkin9649]

Do you guys have a parts list and list of parts machined so we can copy this?

[@biggnschristopher1378]

Updates are great but it's all about to sit down keep up the good work guys

[@jgrieve3282]

Toledo brand make a non magnetic lifter install/ removal tool that is perfect for straight six motors, makes the job of removing varnished lifters a lot easier.

[@fm9572]

As a rule, I go with OEM filters. Even if 'they're all made by the same company,' OEM filters have a patent on the check valve in the filter. They tend to use a coil spring mechanism at the top of the filter, instead of a poppet valve at the bottom for the relief valve, so that if there is ever a need for the bypass function to continue flow to the engine, you aren't getting the sludge and dirt on the outside of the filter circulating (as much) thru your engine until you can change filters. That, and Motorcraft filters tend to cost less than even the walmart brand filter, despite having a superior design.

[@michaelw.5921]

Hold on, you are located in Michigan? Where?!?!?

[@exothermal.sprocket]

I've got no issue with Fram filters, so long as you buy the top notch Fram, about $8 called "Ultra Synthetic" fiter, with the prefix "XG". I've seen many "brands" of filters cut open and all the elements and parts compared. The basic Fram is very poorly constructed in comparison to many others. But what do you expect with $3 or whatever they are. Fram XG filters I would put in the same camp as a Purolator Pure One, or K&N, or Bosch, or Wix. You pretty much get what you pay for in filters, usually $8-12 per filter gets you great quality.

[@michaelmyers2471]

Davin, As to the Wolf question, the emblem on your dash is from a high-end line of kitchen appliances - stoves, etc.

[@pboyd4278]

Great job!

[@sidneysanders5726]

As for the fuel pump, unless you are running over 400hp you dont need a "bigger" fuel pump. Stock is fine

[@efanclublolsmaforlife2501]

You are correct motorcycle .. uses the power from an engine. Engines make power motors use power so an engine with all the accessories including the drive out put trans an such makes a motor

[@sidneysanders5726]

I hope your machine shop knows about the taper of the flywheel. If he grinds it out then for some reason the clutch shudders when engaged. My wrangler has this problem and it has the same engine.

[@Motorcycle_Man]

lol I'd say they know just about all that's possible to know about these

[@Thousand_yard_King]

Owned a 1991 XJ, fixed a lot of issues with it, but what surprised me is how bad the gas mileage was on it, for a 4.0L stock straight six, that thing got worse gas mileage than my 7.4 l V8 on my truck!! Never make that mistake again

[@sebastiancv4595]

how much miles per galon?

[@jonathanlindsey858]

I had a 2003 Grand Cherokee with the 4.0, it was all stock and I could easily get 24 mph hwy on cruise at 70mph.

[@timcervinsky]

Do you have any thoughts of swapping in an electric fan? If so, I have a AC bracket with the fan shaft machined off and it is powder coated silver. I may be willing to ship it for the cost of shipping.

[@sidneysanders5726]

Alot of the reason why the fan is offset is due to not enough room in the front of the engine. The 2.5 engine has the more traditional fan on water pump set up cuz of all the room they have on front

[@brucewells7754]

Hi guys - question you had in this clip for long headers ? Yes just installed some on my jeep Xj - Coby exhaust Made here in New Zealand

[@sidneysanders5726]

What cam spec did yall use for that 4.6L stroker??

[@rogeruttecht7648]

Davin, if you ever feel the need to rebuild a 2.5 liter Triumph TR6 engine. I'd haul it up there to Michigan. I have a 72 Triumph TR6 insured through Hagerty. She runs okay but it's not real inspiring and I want to rebuild it, add some compression, a torque cam or fast road cam and make it fun.

[@gebeme11]

Once the engine is broken in, please do a dyno test.

[@nuffsaid8082]

It's beautiful

[@skyadsAu]

Good jobs guys - Only comment I would make is that, it is common for the stock header to crack, I would recommend a new one if you have the stock one off

[@josephreisinger33]

But with the brake in oil, I would still mix up the quarts then pour it in. Call me crazy but when I put in mobile one, I shake every quart . If you don't, look at the bottom of the bottle. Some of the additives are still at the bottom. Just saying. As always gentlemen, great video. Can't wait till the next one!!!

[@Rickyboy707]

I had a Fram filter explode on my 1965 Mustang. Luckily I have an oil pressure gauge, saw the pressure drop, and shut off the engine immediately, saving it. I contacted Fram and spoke to a representative about my incident, and he would not take responsibility for a defective filter. I now use Purolator filters with no issues since then. I won't use Fram filters any more.

[@brarautorepairs]

Not all Fram filters are bad. I bought a Fram oil filter and it has an OEM filter inside with the OEM marking removed.

[@exothermal.sprocket]

Go with the most expensive line of Fram, prefix "XG" or called Ultra Synthetic. I've seen them taken apart and they are quality inside. I'd put them in the same category as a Purolator Pure One, Bosch, Mobil, or the like. Figure $8-12.

[@robertelks1799]

Is there an actual RO parts list of exactly what you used?

[@notgerardjoseph]

John is the audio man confirmed hahaha

[@jeepjeffy04]

I want first dibs on buying it when you get tired of it!🤣

[@nathrak]

Where is the dyno video for this!?

[@andrewf8486]

Did you need to tune the computer?

[@robertwilson9012]

What is going on with the snowball race car ????

[@cowboybebopwuwho5588]

I know this is an old video but I'm getting ready to take my 4.0 block to the engine shop for machine work can yall drop a link for the build sheet so I can compare it to mine

[@timothyearp631]

My opinion: changing the cam to a roller set-up may have been worth it just to avoid having to use a high zinc oil, my reasoning is that zinc kills catalytic converters, and you just replaced the cat.

[@Whopoopedinmypants]

Thats just for cam break in. Can run conventional oil after that.

[@jamesford2942]

Roller cam in a 4.0 can be problematic. The lifter bores are short and they don't have the side support needed for roller.

[@snidewhips]

I have had a used rod bolt fail. I let honda down over 8$ at the time

[@MatthewBerginGarage]

Torque is force and horsepower is how fast it can make that force.

[@davidwpaul3815]

Torque wins the race, Horsepower sells the car.

[@P1toman]

How can I get a balance pulling and spacer Min 34:40

[@P1toman]

Buy

[@rogermartinez78]

Covid with your buddy!

[@rroop1973]

how about "motor oil". it's been called that for years!

[@4931lmon]

You should have gotten a nice header.

[@chash7335]

After I watched the entire Jeep series, you guys let me down by not providing closed captions.

[@matsinkal]

A stroker engine sounds perfect for a jeep owner they are all stokers :)

[@EliezerMessias]

Trabalho top..

[@retiredafce3373]

Fram lol. A guy on KZbin trashed Fram for a while because he opened up a few and found moisture in some. But Fordbossme on KZbin swears by them.

[@colin5064]

Hey guys just like to remind you that you are talking to a world wide audience, not every viewer lives in USA. My point being that not every country around the world, have loads of people with Jeep knowledge. You appear to take this for granted at 1.04 inti this video by your comments.

[@YvngCheese]

I do agree they lacked some info, but they also gave a lot mor than they left out. However, how do you think anyone gets knowledge on jeeps. I'm in the US and I wasn't born with all this extra knowledge on jeeps. I gained it by watching videos, joining forms, reading, and buying jeeps. They should however do a detailed writeup on everything they did and post it online for people to use and reference. Something like a manual.

[@ZeGermanHam]

Someone get these guys some tea with honey, pronto!

[@merrittmcdowell8675]

Torque gets you there horse power keeps you there is the saying

[@overlandingjohn1277]

At video time 17:15. at the motor in the camshaft region right below the "N" in the penzoil logo. I see a pretty visible vertical crack. Was this addressed and if not/so why is/was it not a concern?

[@paulfortune641]

God...break in lube...another thing to seriously consider is after all this labor of love to create a breathing beast...it's alive!!!!. Why would you short change yourself on the initial fire up to potentially score surfaces before the oil pump can even do its job effectively...

[@stevec5280]

They don't have all the parts now. Y'all advertised this stuff and now it's sold out.

[@ianharrington3546]

Do a toyota with a 22r in it

[@Riptidevulture]

Ouch! These stock rockers are so inefficient!

[@ericmuhlbeier8023]

Never run an adjustable rocker

[@MrKnoxguy101]

I hate it for our brothers up North that have to deal with all that halite they put down on the roads during the winter months, eating your good vehicles down to nothing. I’m down South but on more than one occasion have seen underneath vehicles from up there and the damage it does is unbelievable. I’ve seen cars from up there that were only 8 to 10 years old, where their subframes were just literally crumbling to nothing. Sway bars will be missing because all that remains of where the mounts were would just be thin, jagged pieces of rust. It looks like someone dug up an old frame out of the ground that had been buried for 20 years and built a vehicle on it. I’ve never seen anything like it.

[@carlthor91]

Yes, one company makes most of the filters, but, and there is always a but. It is the standard they use (cost for their customer) that governs the quality. Fram is crap. Sorry, do your own teardowns to verify.

[@gregj.gotham4402]

An engine runs with gas. A motor runs by electric.

[@CaptainMirro]

What about motorcycles?

[@zenriderx]

example- steam engine runs on external power (as does an electric engine) A motor creates it's own power internally. But the two terms are now a days, interchangeable, but for the most part have reversed their original operational denotation. (In fact both definitions now use the other as examples)

[@kanewalton4248]

First

[@rgiordano8224]

Like Tom Cotter presentations. I 'll pass on other productions.

[@lacolello6644]

Davin stop pissing around with this shyte..get on with the 440 and the old racer