Socket Cap Head Bolts for your Cummins | Parts Bin EP 23 | Power Driven Diesel

In episode 23 of the Parts Bin, Todd and Tony discuss socket cap head bolts and using them to upgrade the head fasteners on 12 and 24v Cummins engines. These Power Driven Diesel head bolt kits are ready to ship, you can order them through the website or click on the links below:
12v Head Bolts: powerdrivendiesel.com/product...
24v Head Bolts: powerdrivendiesel.com/product...
Power Driven Diesel is a specialty performance shop engaged in the engineering and development of high performance turbo diesel technologies.
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powerdrivendiesel.com
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[@jeffh6971]

this is one reason why i love you guys, budget products for the budget guys as well as everybody else. thank you. love the channel, love the content.

[@thefumminspagerpope4452]

I’ve ran a set like this on my 12 valve for 3 years and it has 500,000 miles on it with stock head gasket. They are a great option for a budget!!!

[@adrianlaverick8040]

I loved the honesty, about the coatings, as well as the washers and that those will be updated in future. PDD is always top on my list for cummins parts when I have someone asking

[@pddofficial]

Thanks Adrian!

[@savagefabrication795]

We have been running this style since 2014 on a lot of our customers trucks. From a good friends 600 whp vp truck to our 13mm p7100 work stock pull rig. No issues.

[@pddofficial]

Nice! Having these hold the power of a puller is amazing!

[@Wandering_Horse]

Used to run same 12.9 bolts as a budget solution for the turbo BMW guys on the old M20 6cyls. We used the factory head bolt washers which where virtually identical to the washer you provide. And yes, chamfer always goes against radius on the underside of bolt head, basic mechanics 101. Also besides the size issue of standard washers is you need a hardened washer to hold the torque load. A standard washer will crush and continue to due so through heating and cooling cycling leading to loss of torque and subsequent failure of head gasket. I especially appreciate all the research and testing that went into this product, even selecting the correct socket tool to go with the bolts. Excellent work 👍🏼

[@colinlawrence2186]

Hi guys once again an awesome video real world solutions Without breaking the bank really appreciate the time and effort you put into making these videos As always God bless you and keep safe in these troubled times 🙋‍♂️🇬🇧

[@bdjm8595]

More goodness from PDD, you guys are awesome!!

[@ms.karihart2983]

Awesome work guys

[@GaragebuiltDiesel]

Ran these for a long time from fastenal. They do work good for a budget

[@mustangdemon87]

Same here. Put them in at 118k miles now sitting at 485k miles. Work and hold 40psi zero issues

[@cesare8020]

First comment, woot. Keep up the awesome work. Yall have given me an appreciation for diesel engines.

[@mustangdemon87]

Can you make these for the thermostat housing mounting for the heads!?!

[@user-el4ii7zq6l]

Running some from mighty Diesel for years compound 64 71 12 over s480 seen 80psi original head gasket just switched one by one

[@pddofficial]

You are living life on the edge! Keep the timing very conservative or you will have head gasket issues!

[@Ironwind1972]

Just bought some for my Cummins Ramcharger swap.

[@pddofficial]

Awesome we love the Ram charger!

[@Thepriest39]

How did you run your torque test? Did you measure bolt stretch? 125 ft. Lbs is nothing. A standard impact Allen socket will work just fine for install. Get a set from Harbor Freight. I used them for sawmill maintenance for years. Never broke one using an Ingersoll Rand 1/2” and 3/4” impact gun. I might look into installing a set of these. 2001 with 99500 miles. 67mm c/w & t/w turbo with .010 X 7 injectors and Quadzilla adrenaline V2 tuner.

[@mvcg-cl4cr]

Whats a ballpark on max psi these bolts can handle? I know that drive pressure is what lifts heads, but humor me.

[@bigbear3977]

Curious what kind of coating you guys decided on!? You mention trying multiple options, what was the consensus!!?

[@ratherbefishing4225]

Well I can’t prove that the bolts failed but I put a set of these in my 12v and 3000 km later I’ve got coolant running down the side of my block. Pulling the head off and going with ARP studs. Thought I was well within the limits they’re talking about with a single 62mm turbo and 5x12 injectors, the usual mild work on my 215 ppump🤷🏻‍♂️ had the head resurfaced and thoroughly checked out before putting it all together so I don’t know what went wrong.

[@skylargehle531]

I don't know if thay looked in to it i instead cap bolts on my truck and I messed the old head bolts and the hole in the block and using a bottom tap was able to buy bolts that were 15mm longer than the factory head bolts to get into unused threads in the block.

[@pddofficial]

If bottom tapping occurred on every engine, some of the bolts can be made longer. However, this product was designed with ease of install as a major objective and bottom tapping the block with the head installed is not easy.

[@awashbowler]

I would be pretty skeptical of running a set of these if longevity is what you are after. Normal SHCS are NOT engineered to the same standards as high load automotive fasteners. Stock head bolts have a special thread form that controls the root radius of the thread to remove stress risers. SHCS have a normal thread form that can allow for a very sharp radius in the root of the thread. Stock head bolts are also subject to a multitude of tests including thermal and fatigue tests. SHCS are subject only to a tensile test. While all 12.9 SHCS should be the same on paper, we know that the standards for that grade of fastener allow for a variety of different manufacturing options that would all produce a different performing fastener. For the little money these cost, I would still choose the stock head bolts because they have the extra thought put in to ensure that they last for their intended application.

[@bernhard8540]

I quit buying chrome socket any things anymore because the impact versions are way stronger and can be used the same ways

[@chrisgraff2103]

can you swap these out one at a time safely or do I need to pull the head off? If someone can share the best way to do this that would be mega awesome. i am looking to add more power and I want to get ahead of any issues on my rig.

[@pddofficial]

YES WE DO THE ONE AT A TIME METHOD ALL THE TIME AS A SEASONED HEAD GASKET HOLDS GREAT

[@chrisgraff2103]

@@pddofficial ohh sweet thanks guys. I’ll be putting an order in for these and looking at what to do with my clapped out turbo lol. Ohh btw why do you not ship transmissions to California? I may need to order one and I am pre smog here.

[@njdevi11]

What "import" head studs did you test that was junk? Did you test the xotic studs?

[@92powerdiesel61]

It'd be nice to see how they stack up.

[@randommxname202]

Ive wondered the same thing

[@randommxname202]

@@mvcg-cl4cr where does it show them testing the xotic studs? I dont see them anywhere in the video

[@92powerdiesel61]

@@randommxname202 I don't think they want to stack up against them. They get too much of a markup with the ARP and IFG studs. They're selling something here that The Mighty Diesel has been for years at a much, much lower price.

[@92powerdiesel61]

@@mvcg-cl4cr I'm glad your so sure. China makes most of the world's industrial equipment if the studs are spec'd to be competitive and the QC is good they will do just as good as any domestic product.

[@whatchu_talkin_john_willis]

just tumble polished?

[@pddofficial]

No, tumble polishing would do nothing for corrosion resistance, plus it would likely mess up the threads if you tumbled them until all the black oxide was removed.

[@jasontruman1215]

Tony must be Dauntless89 on cumminsforum.com?

[@dante04srt]

Ding ding ding

[@mustangdemon87]

Funny how we can tell who is who from just talking online! Haha

[@MxASage3030]

I've got quite a few of his how-to/walkthrough threads saved. Been a MASSIVE help with the restoration of my 95!

[@jason86768]

Tony was a great help and source of knowledge during the rebuild of my 12 valve. Thanks again Tony!

[@me53317]

Any plans for 6.7s?

[@andrewnemecek4898]

Just bite the bullet and do head studs for a 6.7

[@randommxname202]

@@andrewnemecek4898 yeah for sure

[@randommxname202]

They said they have them for 24v's too though so that covers 98.5-present i believe

[@pddofficial]

These work on 6.7's!

[@farmerjohn5850]

Will it hold with 50 psi of boost

[@pddofficial]

Depends on how much timing you're running and where in the RPM range it's making 50 psi. 50psi at 2k RPM needs studs for sure.

[@greerjosh]

Can these head bolts be reused?

[@pddofficial]

Yes

[@amospgarcia9152]

Why didn’t you ask Gale Banks?!!!

[@2eyedjack433]

Yeah let's see what she has to say!

[@amospgarcia9152]

Gale Banks is the only one that knows anything about diesels. Change my mind!

[@jaydunbar7538]

@@amospgarcia9152 can't change willful ignorance.

[@jaredjolly6400]

I love these guys, but is it just me or are they stoned in every video?lol

[@pddofficial]

Its all the diesel fumes!

[@bigdreamsonsmallacres]

I will listen to anyone with a bad ass beard like that. Tell me more you bearded god.

[@highmellow8071]

Really hides his stretch marks well