How to Identify & Remove 4.7HO Camshafts 

Thank you. I am working on more videos that involve air and fuel delivery.

Agradecido

Yeah I love Pick-A-Part. Save me a bunch of money and and where can have so much fun for a dollar admission

@@martinbuilt If it wasn't fun, it'd be work!🤣

Yeah I need to talk to my guy and see if he can water jet some of these out.

they are interchangeable, there is a slight improvement in the chamber and runner design

Fløw Franco Is your turbocharged 4.7 a aftermarket kit or something that you put together yourself? Would like to see some video on it like a walk-around under the hood

+martinbuilt I put it together by simply sourcing everything. this was in November of 2017 I have since then removed the turbocharger due to a blown up exhaust impeller. I am planning on purchasing aftermarket internals and buying a supercharger kit along with the TD2 tuner.

martinbuilt Yo Martin, I have something you may wanna check out. Its related to the #10 wire (yellow/green) once cut it disables torque Control. There is a video uploading as i type this but i recommend you look into it. Maybe make a video on it or something. Anyways cheers.

@@flwfranco2821 👌👌👌

True. I found an ho from a 2003 jeep. I got the whole engine and rebuilt it. Why take just the cams??? Cant see the logic in it.

Love my too, got it at Harbor Freight. Got both the 3/8 and 1/2" drive. Like the fact they easily fit in the tool box.

@@martinbuilt I bought mine off a traveling tool salesman years ago. Didnt expect much for $35 bucks and the cheap looking handle, but it turns out its tough as hell. I've put alot of pressure on it at full length and it didn't even flex. I like the push button socket release too

@@edjackson4389 here is a video where i break the head of the 3/8 drive ratchet off. You can start at 8:00 minutes. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-_N8LKA_0ow0.html Harbor Freight warranted it.

Thank you, Phil yeah it's a shame that engine only had 113k. Well I do know the later model cams and intake work great on the earlier 4.7 I was at Pick-a-part today pulling the heads of a 08 4.7 but unfortunately the right bank no.1 cylinder dropped a valve seat.

@@martinbuilt That sucks, I know 4.7's and 5.7's both have the issue with valves dropping seats, early 5.7's anyway. I was under the impression earlier 4.7's and overheated 4.7's (multiple times / severely overheated 4.7's) were the ones most prone) dropped valve seats. I worked for Mopar dealers for a decade and 1/2 among others, along with being a Mopar fan, older and newer. Never did discover a set in stone 100% absolute for sure answer anywhere (even from other guys along side me on the line) if the later 4.7 HO heads were needed to get the 305+ hp out of the 4.7 motors, or if the cams/intake, exhaust, induction/throttle body/reprogram were all that is required to get to the 305+ hp level. The shame is that Mopar never released support for a under hood roots type supercharger, or other power adder (not NOS) for the 4.7, only the 5.2, 5.9 and 5.7 Hemi's. 4.7's wind up pretty high for a truck motor, have aluminum heads and overhead cams, which make them more responsive to mods versus the push rod OHV design. I want to up level horsepower on both my Y2K WJ and Durango 4.7 4WD' trucks. I'm checking out all your other videos and posts, including the Doug Thorley block hugger headers, 3" exhaust all the way, LS throttle body, and whatever other hidden nuggets I've yet to discover. It's nice to see someone old school who is interested in doing it the right way, along with showing interest in the venerable 4.7L, which is a pretty tough motor. Makes almost as much or more power than a similar sized old school 273 small block when compensating for old school SAE at the crank, no accessories, vs. modern more accurate net rated horsepower. I already did the software mod on the trans to get 5 speed out of the auto trans when I was still at Dodge, along with other drive-ability related upgrade programming using the DRB. Having the 5th gear with 3:55 gears (Sure Grip 3:73 in the Durango) helps out a little, though mileage round town is seldom over 16 mpg, with 21-22 all highway at 70 mph. My Durango needs the both manifolds removed, typical 4.7 broken manifold bolts, as well as the y-pipe flange bolts and flanges rusted and gone, though still in place. The manifolds are starting to tick under load where the bolts are missing. Makes sense to put the Doug Thorley block hugger headers on versus new bolts, shields, gaskets and exhaust logs. I can relace the y pipe flanges is the Y-pipe is reuseable with the headers, if not, then so be it. If you have any suggestions for bolt on power to wring the most HP/Torque from the 4.7 in my WJ and Durango, by all means I'm all ears. Not too many of us out here interested in getting more out off the venerable 4.7, everyone seems to want to swap in a Hemi or a LS motor that's HERESY I SAY!. I do all my own work, as I'm semi retired. Thus everything budget related is a big bonus. I love both my Mopars and plan to keep them forever, even when we end up with a newer-used Mopar. My wife wants a newer Hemi powered Charger, a 2015 or newer, she prefers the later model front end and grille. Me, I'm looking for a Hemi Challenger, perhaps an SRT 8, or something with the Scat Pack, newer than 2011, as there is far more potent aftermarket and bolt on support, regardless of which Hemi you pick. Of course, you cannot go wrong with a new Durango either. Honestly, I mean reallt...500 horsepower stock, in a 4WD SUV? It simply doesn't get any better than that. The same applies to the newer breed of SC SRT-8 Grand Cherokee Hemi's. .. they are simply road monsters iron fist in a velvet glove... I love your videos. I love the old-time can-do attitude, ... doing it right,.. making it work, and not simply taking the easy way out, purchasing a new car, or simple off the shelf parts, wherever available, but not so much us 4.7 guys which is what caught my eye about your videos.. We old timers came up in a different time with a different mind set, one where you actually had pride, skills, ability and built things, rebuilt them, or actually repaired the broken parts/components, not just swap in new parts,.. guessing at the problem. My 23 Y/O daughter is currently in Lincoln Tech's 13 month auto tech course, just like I took, some 40 odd years ago. She wants to follow in my footsteps and believes in the very same ethics that we do. You fix the problem, diagnose it properly, not simply throw parts at, keep on guessing,.. shotgunning parts till its fixed, or the light goes out. Not too many youngin's coming up today who are interested in actually diagnosing and fixing the problem correctly, not simply throwing the part at it google or RU-vid says to.

Cam sensor on front of right head. Crank sensor on right side of rear section of block. Both 3 wire sensors.

I'm glad you liked it and found it helpful, thank you for watching.

No that doesn't sound right at all. Makes me wonder if that cam had been changed out at one time and they installed a non HO cam in its place. Perhaps that engine had a lifter go bad and when the rocker came out it damage the camshaft. And then was replaced with a non HO cam

@@martinbuilt that is kind of what I thought. Do you have or know anyone with a driver's side HO cam for sale? I replaced the other one already and have my motor apart 😣

@@r.blanco7520 I don't know of anyone that is willing to break up a set.

@@martinbuilt do you know anyone selling a set? If so, how much? Thanks for your help.

Y@@r.blanco7520Blanco, you can contact me here I can help. facebook.com/Martinbuilt-2351766611763181

well that's to bad, the two largest differences between the two engines are the camshafts and the pistons. Of course changing pistons is not practical, you may as well find an HO engine like I did and swap but, you can start with a set of HO cams.

@@martinbuilt tjank you for your reply I might just run it till I need a new motor and put the correct one

A cam swap on a 4.0 would be more involved. You would have to remove the cylinder head, the harmonic balancer, timing cover and timing chain set. Your 99 is considered a HO motor even though it isn't labeled as one.

Oh, I see. Honestly didn't realize all that would end up going into it. Just a curious thought. Comforting to know though. Still has plenty of pep. I love how I really don't have to mess with it all that much. Really simple.

yep...the 4.0 is a very reliable engine

Papa Savage Well that sucks about the cylinder head and everything. I hope everything works out with that LS swap. I just recently borrowed an LS part and put it on my 4.7 and I had the holy cow effect. I'm working on the videos for it. Took it up to a hundred and twenty yesterday in absolutely no time flat I was super impressed. Now I got to get a programmer cuz I am running a little lane when you step into it. Not dangerously lean just lean for a performance aspect. Well let me know how it turns out.

martinbuilt wait you've done a 4.7 to 5.3 swap? What all did you do and your Jeep is like a 03 right? Mines a 01 quad cab Dakota. There used to be some guys doing it but it was years ago now its just Brian Esser it seems like. I'd love to know more information on brackets mounts and clearances and any changes that will need to be made. Other than obviously mounts transmission transfer case and engine

Papa Savage sorry to get you all excited there. No I did not do a 5.3 swap. What I did do is took a part off an LS motor and adapted it to the 4.7.

martinbuilt wait what what did you even adapt from a 5.3 to fit a 4.7 that made any kind of gains? I am kinda lost at what that would even be

That could be bad this is considered a interference engine which means if the timing chains and sprockets are not in the correct position that valves can actually make contact with the pistons.

And how would attaching a vice grip to the camshaft help in removing the Cam gear

@@martinbuilt It would prevent it from jerking under pressure of the springs. Take a look at the official Chrysler video at 0:58 ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Sw42KzY83bY.html

Well this isn't how I do it normally but this is at a Pic a Part salvage yard and all I am interested in are the camshafts.

@@martinbuilt I totally get it. Thanks for creating an informative video.

On the cylinder heads there will be an HO that is elevated on the cast, if it is an HO engine. If there is nothing there, then it is a non-HO. Another sign that it is an HO is the harmonic balancer is much heavier duty.

Answer to your question is yes you could install camshafts from an 08 4.7 and install them into your 06. By the way the 08 is not considered a HO engine even though it does produce more horsepower. You can also install the 02-04 HO cams in your 06 as well..

@@martinbuilt his question about the lifters and mine about the rockers. Do they have to be changed as well? I personally have a 05 Dakota.

The same oil that I'm using. I'm surprised it has done this since new. It would always make me wonder if the next time I was to start the engine will it be the last. I guess I'm saying change them.

It has never concerned me as it goes away but now seeing this video showing them failing with no sludge worries me so I will change them Thanks again Martin And yup I use Mobil 1 in all my vehicles 4.7 5.7 and 6.1 hemi

@@3gencamaroguy Your welcome, let me know how it turns out.

Very welcome

In your situation you can either use the sprockets you already have or you can use the ones from the Cherokee.

no, the lifters (lash adjusters) are all the same from 99-07. They are even the same ones found in the Ford 4.6 and 5.4 engines.

The HO engine has a steel crankshaft, full floating wrist pins, higher compression Pistons, a unique harmonic balancer, HO intake manifold, HO camshafts and HO cylinder heads and knock sensors. Yes you can install HO cylinder heads on a non HO engine you can pretty much swap anything on to a non HO engine.

i have a 132k 4.7 overland and dont want it to die...

prob worn valve seals

if your Durango has an NGC ECM, yes if it has a JTEC ECM you would need to change the reluctor wheel on the crank and the right cam gear

Yes, the HO cams will work with your ECM . You should see approximately a 15 horsepower increase.

Muhammad Ayyad the cams are different. Did you use a micrometer to measure the lobes there's a .030 inch more lift on the intake lobe. The HO heads also have a different design combustion chamber. Now when measuring the intake lobe you will not see 30 thousands of an inch because the rocker arm gives you some of that lift. The rocker arms are the Same by the way.

The HO's have quite a few differences. Detonation sensor bosses in the valley, different rods (full floating pins), combustion chamber shape is different, valve springs are bigger, exhaust valve is different, main bearings, crank (forged), pistons, cams, crank balancer, intake, intake tract (airbox and housing) are all unique to the HO, higher flow injectors, has knock sensors, uses different plugs and PCM programming is different.

What is it about the exhaust valves that are different? The non HO motor does have the Detonation sensor bosses in the valley. I wish mine was an HO

I believe it is the material that is different. I think I meant to say the bosses were not tapped or used. I was looking for HO parts until my friend rolled his 04 5.7 Ram 4x4, I am trying to get the entire powertrain from him for my 04 GC. In the meantime my non HO has 140,000 on it and runs perfect, stock besides a fuel rail modification and higher flow injectors.

What fuel rail mofification did you do?

The tone Wheel (cam sprocket) are the same part number, no issue.

Yes that would be a direct swap.

Great thanks for getting back to me so quickly! I recently bought this truck from the original owner and the reason he said he was getting rid of it is because the dealership he went to told him the 4.7L is an accident waiting to happen so he bought a brand new truck and sold me this one privately because the dealership supposably was only going to give him $1,500 trade in value on it and the truck is basically Factory new condition!

@@desertfox1097 why can't I find those deals. That's a Unicorn

yeah I know, I was actually trying to find a Dakota regular cab 2 wheel drive manual transmission with the 4.7 in it but I don't think they even made them did they? I wanted to make a stoplight to stoplight racer out of one but everyone has been telling me these 4.7 engines are total junk and I should swap it out with a 5 7 Hemi which would be a direct fit. sounds like too much work to me LOL

@@desertfox1097 I was just thinking about your truck. I think if it was me since the truck has such low miles on it I would not touch the heads as of yet. Start with improving the exhaust system and then go with the 08+ camshafts and intake manifold with at least a 70 mm throttle body. Of course I'm fond of the 75 mm throttle body that I have on mine. Also for peace of mind I would get the ATI damper this would make a good insurance policy for the bottom end. Then yet a can tune or dyno tune and you should be looking at over 300 horsepower.

You need a need head...

Do I need to replace the timing assembly when I take apart

I don't have a blueprint or anything like that but here's a video I did on how to build your own. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-X0bXNI6kr_o.html

2008-2013 4.7 If the 4.7 has dual spark plugs per cylinder, as your truck has, it will interchange with your truck.

@@martinbuilt That’s what I thought! But after seeing your video It may just need a head or heads.. which would be cheaper for me to do. I had the tick for awhile would go away when warm and then it got louder truck smokes some here and there more when it’s just idling for awhile and then it’ll clear out when your drive it, but has like no power! Anyways him going to pull a valve cover and inspected maybe I can spend $590 on a brand new head and head bolts because they are throw aways and then some new lifters on the other side or vise versa or both 🤷‍♂️ thanks man!

@@charlieweatherwaxjr105 Pull the valve covers to see if there is anything obviously wrong and then I would do a leak down test on each cylinder. I'm going to do a video on leak-down testing. I'll try to have it out by Friday.

@@martinbuilt I did and pulled a few lash adjusters not good to much play. Now I’m trying to order them but I cannot find anything for 2013 ram 4.7 I can find all the old stuff like 02-03-04- up to like 07? Are they all interchangeable in all the 4.7’s?

L Pro-ceo the difference in the cylinder heads is in the combustion chamber. The camshafts by themselves will probably net you a 7 to 15 horsepower gain.

Yes I have a up coming video that will cover that spacer with the 2008 intake manifold.

Yes NEVER waste your hard earned $ on a TB SPACER! They do absolutely nothing....unless you're gonna use the spacer to spray nitrous oxide!

use your computer it will work just fine, I've done many mods including the 08 camshafts, and still haven't tune it and it runs great.

07 are a non HO engine, the 08 with dual spark plugs per cylinder those cams are even better then the HO's . I will be installing the 08+ soon. As far as the HO cams those can be found in 02-04 Jeep Grand Cherokee only but you must check the VIN

Yeah, I know they're latch adjusters but, everybody calls them lifters, 4.7 never came with solid lifters. But they are available through airram.com

@@martinbuilt If I have a dog with a 4 legs and a long tail, and I call his tail a leg, how many legs does he now have? The answer is 4. From what the specs say, the HO comes with solid lash adjusters, and no lifters since it is not a push rod design, but an SOHC. I can proves this by taking one of those lash adjusters and pressing it in a vice. You will see it is solid and not hydraulic. I will bet you $500 if you take that engine apart, you will find a dropped valve seat was the cause of the carnage.

@@akonitony2 I know that they're latch adjusters just everybody calls them lifters you still know what I meant by calling it a lifter. And I'll take that bet. if it had solid latch Adjusters there would be some way of adjusting them.

@@akonitony2 wrong where's the $500?

@@80weir Where's the video?

The 08 and later camshafts have a solid shaft where the ho cams are Hollow shaft , so you'll notice a big weight difference and the 08's part number is right in the middle of the camshaft laser printed

It will fit the standard 4.7 here is a video ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-URrQ9sMgLJs.html

They didn't make an HO until 02 and only in a Jeep Grand Cherokee in some Limited models and all Overland's Look carefully at the ridge, a non-HO cam will have a single 9mm wide ridge and the HO will have a double ridge the second one is only 2.37mm wide.

@@martinbuilt thank you, I double check

yes it will, happy hunting!

Yeah you most likely did. I've made several the third one I made was using a Chevy 454 throttle body 75 mm

High Output

junglejonny1000 Well you'll hear talk that you're going to gain 20 horsepower from the HO cams. I believe it's more like 7 to 10. I did not feel a 20 horsepower gain.

So it is useless to swap for ho cams ?

Yes you can install the HO cams in your Dakota. That will make a noticeable Improvement

Thnx . I plan on putting the same lashers u got from Air ram is ther any adjustment or are they good to go out the box?

Any timing need redone after the ho cams n lashers in?

@@brianmiller909 as long as you install the wedge in the timing chain before removing the cam and cam gear you'll be alright.

Dakota Guy05 if you're up to doing the swap yes I would do it.

I believe the only difference is the springs with the cylinder heads

I do have a set.

martinbuilt how much for a set? Are they good condition? I’m in VA

@@tylorrandomly547 300 plus 20 for shipping. In excellent condition.

martinbuilt got a fb or something to make the deal?

@@tylorrandomly547 facebook.com/Martinbuilt-2351766611763181

The HO engine had 30 more horsepower. It also had a steel crankshaft. Higher compression Pistons, better design combustion chamber in the heads and some programming in the PCM

Higher flow heads.. Different intake.. High flow injectors.. Forged steel crankshaft... Floating wrist pins... Intake is less restrictve. Tri metal main bearings! Dual knock sensors.. Pcm calibrated different. Valve springs... Platinum tipped plugs... Dome pistons. ALOT.

@@martinbuilt I bought a rebuilt HO engine. It has 30miles then developed a lower end knoçk. $3000 engine I scored for cheeep. I was told that it's bored .20 over. I want to know how likely it is that it still has high compression pistons, and the HO cams. How could I tell? If I can avoid separating the heads that would save me the gaskets. I'd like to fix the knoçk and install it into my 03 ram quad cab. As purchased the engine is complete minus cam timing sprockets, chain, it has a set of broken valve covers just for attempt at contamination prevention. The missing parts went into the sellers replacement engine. I have a new chain and guides on hand in box, and I have several old heads with gears and complete core motors with gears also. Everything is new and pristine, I hope the bottom end isn't too terrible. It's still loaded in my van. The question, can I Identify the camshafts and the high compression pistons design with the oil pan and valve covers off?

Left (2002-2004): P/N 53021411AB (superseded by P/N 53021411AD. Right (2002-2004): P/N 53021412AB (superseded by P/N 53021412AD

Thank you. Did you also change to HO springs or just run the cams??? Also I cannot find these cams in ANY junk yard. Could I pay you to pull a set for me???

@@Scott83016 I did not change the springs, engine ran great with the non HO springs, no valve float. I have a set of HO cams available. You can contact me at facebook.com/Martinbuilt-2351766611763181

@@martinbuilt I messaged ya boss

Thank you!

There was no dropped lifters or valves so ill go monday and gets the heads too

You scored...the valve size is the same, the spring rate is higher on the HO heads.

yep I guess you have to mention a product. I should have broke out a can of WD-40 and sprayed it on all the hardware or something like that. Or mentioned Crane Cams or Isky, Competition Cams, TRW or all the above.

I just remembered I had 2 products of Safety Kleen in the back ground of the last 4 minutes of the video. I should have used them.

seems theres no consistency to the algorithm that determines monetizing. Just google and YT screwing the pooch.

Michael Laverty Well go ahead and check out comp cam or any aftermarket camshaft manufacturer see if anybody makes a competition cam for 4.7 no such thing in fact the only way you can get a performance cam is to take a HO cam and have it reground.