cheap head studs
 

Ok, I spent the day trying to find a new source for head studs because I think 110 usd is to mutch for 9 ------- studs.
what I found so far is that im looking at a metric B7(high strength/high temp) threaded rod.
It will come in 1m or like 3ft lengths.
The size is M12 by 1.5pitch (same as the head studs in my D16A1


Im hoping that it should be pretty cheap and then we can just cut the rods to lengh and have inexspencive head studs. So these will work with any d series I guess.

He is sourcing the rods today is gonna give me a call tommorow.

He also said that if for some reason they cant find this rod that they also manufacture custome rods as requested. In which case I might be looking for a group buy to drop the cost.

anyone else interested?

Re: cheap head studs
 

d-series head studs are only like $90. If you cant afford that use your stock head bolts ur threaded rod Idea isnt going to work :S

Re: cheap head studs
 

wont work?
do u have any reasone?

I doubt arp makes them in house which means that they have to get them from somewhere and brafasco is a huge fastner company and if it can cut the price of head studs in half y not

Re: cheap head studs
 

----.. you could even resell them probably

Re: cheap head studs
 

I believe the nuts and washers are also heat treated

Id be interested

Re: cheap head studs
 

e is saposed to call me at the shop tommorow and let me know. The good thing about this is that the DOHC ZC and the D16A1 have that 1 longer bolt in the middle that wouldnt be a problem. We just cut them to fit our neads.

Re: cheap head studs
 

your using studs anyways man, they dont need to bottom out to get there required torque, all bolts will be able to stay one equal size

Whether or not arp is justified in asking as much as they do for there studs I dont know

Re: cheap head studs
 

well you have to assume that ARP is not taking a bath at $90 a set. So they are obviously cheaper, but can you get them at that price. ARP is buying them in mass.

Re: cheap head studs
 

Get some specs on tensile strength,elongation,hardness etc and compare to the ARP.That actually doesnt sound like a bad idea I just think your not going to be alot cheaper by the time you add the material,cutting etc.But do a write up anyways because home made head studs would def be original :y

Re: cheap head studs
 

what you need to do is walk around the junkyards and see if you can find a car that uses te same size stud but has a lot more of them like a v6 or v8. As ARP hoses us 4cyl people just like the rod and piston people do. Then just buy the set for the v6/8 that has twice as many as you need.

Later
Randy

Re: cheap head studs
 

Well the brafasco guy didnt call me back yet but he said that the B7 was very strong. the place we are having the problem here is that most people only offer a 1.75pitch in the metric m12. we have to have the 1.5.

Re: cheap head studs
 

ARP makes their studs in house as well as their nuts. Your threaded rod idea wont work, for good reason.

It's fully threaded. Threads are weak.
The material of most headstuds is far above that of just about any available threaded rod.

We're working on making them for the VW 20v since the only available studs for us come from Raceware at a cost of over $200 a set. We've started with 4340 Chromo solid rod. It's being ground to diameter and heat treated, then the threads are rolled on from there.

You're welcome to try your threaded rod idea at the risk of a head gasket... but chances are you'll end up paying for a set of studs.

Re: cheap head studs
 

the rod that we are getting is a ery high strength metel, it is also already heat treated. The reason its threaded all the way is because if it has to be custome made it is a lot cheaper to have them make the whole rod threaded and let me cut the lengths my self. and I doubt that we will ever just snap a stud while driving.

Re: cheap head studs
 

how does your threaded rod fit into this spec wise, ARP head studs are 8740 cromoly.

http://www.arp-bolts.com/Tech/T2_Met...ialSpecs2.html

im sure this rod is strong but remember strong is a relative term.

oh and why would ARP contract out to make bolts, thats all they ------- do..

Re: cheap head studs
 

ya i would atr least want to know tinsile strength and load capacity... 90 dollars is cheap man... dont drink for a week or two... ---- i used to drink 90 dollarsd a night in the bar 3 nights a week.... Or... save your money, its a very worthwhile investment.

DUH

Re: cheap head studs
 

so how much is all this threaded rod gonna cost ya? trying to hmt something that just isnt worth hmt-ing.

Re: cheap head studs
 

ok, the guy got back to me today, its gonna cost 137.00canadian per 1M rod

Re: cheap head studs
 

just found this
ASTM A193 Grade B7 - High strength carbon alloy steel - fu = 125,000 psi, fy = 105,000 psi
ASTM A36 - Mild carbon steel - fy = 36,000 psi
ASTM A193 Grade B8 - Class 1 - Type 304 - Stainless steel - strength designated in table
ASTM A193 Grade B8 - Class 2 - Type 304 - High strength stainless steel - strength designated in table
ASTM A193 Grade B8M - Class 1 - Type 316 - Stainless steel - strength designated in table
ASTM A193 Grade B8M - Class 2 - Type 316 - High strength stainless steel - strength designated in table



High Strength Steel Maxi-Bolts
ASTM A193 Grade B7


A. Conical Nut ASTM A193 Grade B7 UNC Series Class 2B fit for 1/4", 3/8", 1/2", 5/8", 3/4", and 1"
UN 8 Pitch Series Class 2B fit for 1 1/4"
B. Expansion Sleeve ASTM A513 Type 5 ERW DOM Tubing
C. Threaded Stud Bolt ASTM A193 Grade B7 UNC Series Class 2B fit for 1/4", 3/8", 1/2", 5/8", 3/4", and 1"
UN 8 Pitch Series Class 2B fit for 1 1/4"
D. Distance Tube ASTM A513 Type 5 ERW DOM Tubing
E. Washer ASTM A325 Hardened Round Flat Washer
F. Heavy Hex Nut ASTM A194 Grade 2H UNC Series Class 2B fit for 1/4", 3/8", 1/2", 5/8", 3/4", and 1"
UN 8 Pitch Series Class 2B fit for 1 1/4"

Re: cheap head studs
 

10 d series studs are longer then 3 feet arn't they? so you would loos money?

Re: cheap head studs
 

you still arent getting it. it doesnt matter how hard or strong the metal is. the threaded area is weak. i work on airplanes and anything that is structual cannot be threaded all the way. it has to have a shank. $90 is cheap

Re: cheap head studs
 

well after getting that price I see that the arp is good price for what u get but hey this could of turned out to to be a great idea, kinda like boosting a stock honda engine. someone has to come up with ideas to find new ----. and I agreee with what u are saying about the strength but I still dont think it would sweken the stud enuff to be a problem.

Re: cheap head studs
 

i agree on finding cheaper ways of doing the same thing, but to me the $90 isnt worth the effort

Re: cheap head studs
 

1 phone call to possible save hundreds of people posibly 50 each seems like a fair deal

Re: cheap head studs
 

Perhaps you could get someone to thread the ends of some high strength rod and get it treated. Cutting threads will drastically reduce the tensile strength of material, as well as reduce the cross sectional area. This is also bad.

Re: cheap head studs
 

Ya, or to save hassle and worries you could go for VW 1.8l Head studs on you ZC. I know they cost $ but do you really want to be replacing 120.00 USD Headgaskets everytime it blows because you skimped on something as easy as Head Studs?

Re: cheap head studs
 

I have to say good try atleast. You never know until you look. but 100 bucks just isn't that much. I'd rather just get the studs from arp not have to cut anything and know their fine.

Re: cheap head studs
 

Its a good idea but there is a big difference in strength and life between something with cut threads and something with rolled threads.

Re: cheap head studs
 

i wouldnt trust that on an expensive build but if i was doing a shitty engine that cost me $100 i would reuse my same head studs anyway.