View Poll Results: Which Head Studs

ARP L19/H11

93.33%

Cosworth

3.33%

Magnus

3.33%

Voters: 30. You may not vote on this poll

Head Studs...

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Oct 4, 2007 | 10:02 AM

#16

GTVEVO

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From: Ozark, MO

Yep AMS, I just purchased them for that added insurance.

Oct 4, 2007 | 10:19 AM

#17

Asmodeus6

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From: Pittsburgh

Quote:

Originally Posted by kngnothg

Alot of great info here, this is what worries me about lifting the head etc. I was able to get a hold of cosworth to find out their tensile strength...

Company - tensile strength - price

AMS/TMS =210,000 - 260,000 ~$249
ARP = 190,000 ~$110
ARP L19 = 230,000 - 260,000 ~$299
Cosworth = 200,000 ~$175
Cosworth new head studs = 260,000 (estimated cost of 5% increase over current price -release date 30-45 days) ~$190
Magnus =? ~$375

I may just end up going with the AMS/TMS ...group buy or EvoM discount?

Thanks all

Rob

Good breakdown. We had this discussion on Talk a while ago. That's when the ARP L19's came about.

Oct 4, 2007 | 10:51 AM

#18

SeanC

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If you're looking for something tailored to your application, I'd choose A1 Technologies. They manufacturer fasteners for F1, Champ car and a few other racing organizations you might have heard of.

Oct 4, 2007 | 11:29 AM

#19

Asmodeus6

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From: Pittsburgh

A1 = magnus head studs

Oct 4, 2007 | 07:27 PM

#20

kngnothg

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From: Lynchburg VA

Quote:

Originally Posted by SeanC

If you're looking for something tailored to your application, I'd choose A1 Technologies. They manufacturer fasteners for F1, Champ car and a few other racing organizations you might have heard of.

Yeah, looking into those too.. So many choice, so few $$$

Oct 4, 2007 | 07:52 PM

#21

El.BlueEvo9

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From: ORLANDO, FLORIDA

ARP Is what I use.

Feb 10, 2008 | 11:01 PM

#22

MitsuJoe

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Good discussion. So What I get so far is that sealing capabilities are improved whn you o-ring the block. Very good to know!

So are the Cosworth's the same as the L19 pretty much?

Feb 11, 2008 | 12:18 PM

#23

kngnothg

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Quote:

Originally Posted by Joe's_EVO8

Good discussion. So What I get so far is that sealing capabilities are improved whn you o-ring the block. Very good to know!

So are the Cosworth's the same as the L19 pretty much?

The new cosworths (still yet to be released) are rated from 230,000 to 260,000 psi.

Still looking for the best price.

Feb 11, 2008 | 12:24 PM

#24

DTM

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From: Dulles, VA 20166

L19 is nice but standard will do the job just fine

Feb 11, 2008 | 12:24 PM

#25

mitsuboost30

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From: pa

Seems they all say the same Arp here i come

Feb 22, 2008 | 09:40 AM

#26

VIPGarage

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From: Sterling, VA

I like the L19s for anything over 600hp. $300 for great piece of mind is a steal in my book. In my years working with the 4G63 I have seen all of 3 sets of ARP'S with real issues.