high psi with ARP studs

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Aug 27, 2008 | 10:04 AM

Big Bird WS6

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From: Iowa

high psi with ARP studs

will arp studs hold 18psi on a 377ci motor? thanks

Aug 27, 2008 | 10:47 AM

sevanseriesta

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From: Gardner, KS

it depends on prep and head gaskets, nothing is guaranteed

Aug 27, 2008 | 11:31 AM

Big Bird WS6

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From: Iowa

Prep? head gasket is a 4.130 cometic .051 thick.
????????????????
any help thanks

Aug 27, 2008 | 12:08 PM

Z06PSI

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From: Thomson, GA

Prep is how even of a deck on both heads and block. How clean was it when you lay the heads on and the most important is tuning!!!

Aug 27, 2008 | 12:12 PM

Fireball

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From: Cecil County Raceway!!!

read this thread I started...

https://ls1tech.com/forums/forced-induction/973763-what-power-level-has-people-pushed-water-4-bolt-setup.html

Aug 27, 2008 | 01:37 PM

Big Bird WS6

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From: Iowa

well deck is milled flat. and heads are AFR. so how flat is that? lol

Aug 27, 2008 | 01:56 PM

Phil99vette

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From: Port Tobacco, MD

I'd like to see you with some thick deck heads, L19 head studs and a 5 layer MLS gasket. The L19s will resist stretching better than the 8740s.

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Aug 27, 2008 | 04:22 PM

Pro Stock John

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I've seen a number of LS2's and iron blocks take 18 psi and to say 700-800rwhp power levels with ARP studs. www.LS1Speed.com has done a bunch.

Aug 27, 2008 | 04:34 PM

#10

Big Bird WS6

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From: Iowa

L19s what is this? like is this an ARP thing? or what?

Aug 27, 2008 | 04:46 PM

#11

Phil99vette

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From: Port Tobacco, MD

L19 is a fastener Material from ARP that is stronger than the 8740s.

Aug 28, 2008 | 01:15 PM

#12

Big Bird WS6

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From: Iowa

ok called arp special parts and they helpd me out. **** these L19's are pricey.

got to love it

Aug 28, 2008 | 01:16 PM

#13

Fireball

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From: Cecil County Raceway!!!

I have std studs and have hit 20 psi

prolly near the limit...pushed maybe an ounce of water into the overflow...

Aug 28, 2008 | 01:24 PM

#14

Big Bird WS6

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well for like 150 dollar differecne i will just get L19

Aug 28, 2008 | 01:25 PM

#15

Fireball

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From: Cecil County Raceway!!!

Quote:

Originally Posted by Big Bird WS6

well for like 150 dollar differecne i will just get L19

be careful of hydrogen embrittlement...and don't touch them with bare hands

Aug 28, 2008 | 01:30 PM

#16

67Firebird455

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Thanks Fireball, never knew about hydrogen embrittlement, thought you were joking, just looked it up... very interesting topic! Will keep that in mind!

Aug 28, 2008 | 03:27 PM

#17

Big Bird WS6

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From: Iowa

Quote:

Originally Posted by Fireball

be careful of hydrogen embrittlement...and don't touch them with bare hands

yeah that is what they told me. he recommended i wear gloves and keep them well oiled?

Aug 29, 2008 | 01:16 AM

#18

LilJayV10

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So you can't touch those studs with bare hands?

Wow that's some crazy ****!

Aug 29, 2008 | 08:20 AM

#19

Big Bird WS6

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From: Iowa

yeah something with the rust easy. even just the mosture on your hands will start the rusting problem

Aug 29, 2008 | 11:37 AM

#20

brobards

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You guys ever had problems removing the L19s? On the Supra heads they sometimes warp the head when you torque them down which can make them a PITA to remove