Head studs - a different perspective

[ford141]

So, i'm in the middle of a complete teardown on my motor. I already ordered a set of ARP studs and have them here in the box. The dilemma that I now have is how in the world I'm going to torque them down to the required 275ft-lbs when I reinstall the heads? I have access to a practically brand new calibrated torque wrench (neighbor's) but it only goes to 250ft-lbs. I didn't want to spend the $4-500 for a bigger torque wrench that can do 275 since I'm already over budget. I'm wondering if I should try to sell the ARPs and take a loss on them and go with a harder stud that requires less torque and borrow my neighbor's wrench? It seems like I could save a little bit by not needing the torque wrench.

 

[Crack85]

Losing money either way u do it....just depends on how much u want to lose.

 

[Mdub707]

Can't rent one from someone or find someone who has one to borrow?

 

[capt dong]

rent or borrow or youre defeating the purpose.

 

[madman1234509]

If you sell you're going to take a hit, then you're going to buy studs that were more expensive then the arps. I'd try to find one or rent, or just bite the bullet and buy one. Don't buy one that just maxes out at 275 either.... because they tend to not be accurate when they are maxed or almost maxed

Or just put a pipe on the one you have and crank them down Lol jk.

 

[sootie]

If you sell you're going to take a hit, then you're going to buy studs that were more expensive then the arps. I'd try to find one or rent, or just bite the bullet and buy one. Don't buy one that just maxes out at 275 either.... because they tend to not be accurate when they are maxed or almost maxed

Or just put a pipe on the one you have and crank them down Lol jk.

LOL ....while breaking out the check book for a block!

 

[ford141]

I don't know anyone who has one, my best connection (neighbor) has the 250ft-lb wrench. The retarded Auto parts stores around here (Advance Zone) are worthless when it comes to tool rental. They don't have any heavy duty stuff (they only have what they sell on their shelves) and most of those tools are broken when you get them. I got a clutch fan removal tool from them to take the fan off and 2 of the wrenches in the set were already broken, and it didn't fit anyway.

I'm just trying to avoid dropping $500 on a torque wrench that I'll probably only use once. I have a pretty well equipped shop and I consider my tools an investment, but it seems a lot for a rare tool especially when I'm already over budget (stupid broken pistons).

 

[CoreyMS]

Where are you located, maybe someone here is near and will let you borrow?

 

[duddy]

Just make yourself a torque extension. you can make a arm to extend your torque wrench.
got to this sight, is has a picture and shows how to calculate a adapter to use.
http://www.belknaptools.com/support-library/extensions-calculator/

Just keep in mind that the extension needs to stay direct in line with the torque wrench. The calculation changes at 90 degrees and 45 degrees. At 90 degrees, the torgue used versus torque applied does not change, but just one degree from that point and you will not be accurate.

I have taken breaker cars to make these in the past and use several at work, you just need a sacrificial socket to cut and weld to the breaker bar. I will try and find some pictures.

 

[duddy]

And for the offset odd angle

 

[CAT35niner]

Where are you located? You can get a torque multiplier. Or you can figure out the degree it takes to go 25ftlbs and just go the extra degree from 250.

 

[B585Ford]

If you sell you're going to take a hit, then you're going to buy studs that were more expensive then the arps. I'd try to find one or rent, or just bite the bullet and buy one. Don't buy one that just maxes out at 275 either.... because they tend to not be accurate when they are maxed or almost maxed

Or just put a pipe on the one you have and crank them down Lol jk.

:whs: you don't want to be at the max of the wrench. I am sure you are already aware that over-torqueing can cause a cracked block.

 

[ford141]

I'm in western Pa, just north of Pittsburgh.

I'm aware of the cracked block problems, and I'm extra leary about overtorquing because I can't afford a block right now. That's why I was thinking of going to a stud that requires a lower torque rating. What does an Extreme head stud need for torque?

My neighbor's torque wrench does have a degree indicator on it (for Duramax studs) if I knew how far to take it to get to 275. But I'm so scared of overtorquing.

The torque extention idea might be a possibility.......

I looked at torque multipliers, but for the prices I saw I might as well buy a bigger torque wrench.

 

[capt dong]

buy it. use it. sell it and make your money back.

http://pittsburgh.craigslist.org/tls/4428583409.html

 

[ford141]

Hmm, nice find! I'll call about that!

 

[Stroked777]

I believe extreme studs are 165 ft lbs

But you will lose your azz on the arps and the extreme studs are more. Not sure how much more but it would be better in the end to get the proper torque wrench. And I find my self buying speciality tools that I though I would use one and then find me using them more than I thought I would

 

[TXAG07]

Extreme stud final torque is 220 or 230 for the 6.4. Your probably going to spend about $200 more for them. For that, I'd put another tool in the chest and save yourself the hassle of selling your arps.

Also, I believe there is builder or two on here who have used like 250 max and even lower in the weak areas in efforts to prevent cracking. I'm not saying to do it, I just know it's been done with success.