bumpin_records

iTrader: (19)

hi horsepower guys FI of course do u have to run 1/2 inch head studs to be on the safe side? Do i need them for 900+ horses

TwnTrboCE

iTrader: (43)

Sent you the PM back. But for everyone else. I don't believe you need them. The clamping force isn't the problem. We have ran both with multiple gasket styles. Still push water. Just something you learn to deal with with big HP LS? motors.

nitrorocket

iTrader: (12)

I run the standard 12 point head studs with MLS gaskets. I make about 800-850 rwhp on 93 and have never pushed water yet!

Navy David SS

iTrader: (13)

Agree. I don't have them on my nearly 1k hp engine. Run ARP head bolts with Cosmic gaskets. Knock on wood, so far so good. I don't have nearly the number of track trips as TwnTrboCE. Maybe next year

David

DJ's Z

iTrader: (10)

X2...

bumpin_records

iTrader: (19)

well thanks guys if i dont need em then i can use money elsewhere thanks again.

smokinHawk

iTrader: (48)

there is no safe side for 900+hp

TrakDay

iTrader: (7)

Thats what I was thinking. Anything goes at that point!

67camaro

iTrader: (28)

Back up! Does anyone know a price figure for the 1/2 inch studs and all the machining necessary? This is for a factory LS7 block and heads. Can it be done to just one bolt, to repair a damaged thread? Thanks.

Turbo LS1 SS

iTrader: (7)

i have heard the L19s have as good clamping ability as the 1/2" studs, but dont quote me on that. we have them on one of our F1C cars, and they seem to be holding up

DanZ28

iTrader: (5)

Price on the 1/2" studs is $300, not sure on the machining. I'd just do a helicoil for 1 damaged one.

Kurt from W2W said 1/2" studs for 1200hp plus engines.

Dan

DrTurbo

iTrader: (3)

Yes the L19's are awesome, and that is what the supra crowd is not using. Only problem with them is the price.

Turbo LS1 SS

iTrader: (7)

$4-500

prob less money than 1/2" studs + machining

DanZ28

iTrader: (5)

Some other problems are they are special order, takes 6-8 weeks to get until they make a new batch or your lucky to find someone that has them still. The other odd thing is when I called ARP (special order dept) said the only batches they made were ARP2000 and not L19, so i don't know what the deally-o there is, someone is mixed up.

Dan

DrTurbo

iTrader: (3)

Yeah we called as well and for some L19's and told they could not make them. Then we spoke to another guy and he said they could. I can't figure out who the hell to talk to sometimes over there.

DanZ28

iTrader: (5)

Definately call the special order dept. There is only two guys that work in that dept, so you have a 50/50 shot at getting a different answer, lol. They wanted me to basically do all the measuring and engineering on the what I wanted made like they never made them before. I asked them to just copy the 2004 up studs but in L19 material. They are going to make a new batch (don't know if L19 though), but I doubt we see them before Feb. There is no part number for them that I could get, and you never know they even make them unless you call.

Dan

Inspector12

iTrader: (29)

It was about the same $250 for the studs and $150 for the machine work of course they were already there doing the motor also. I think the L-19's are around $450.

67camaro

iTrader: (28)

Thanks for the info. Can somebody please tell me if it can be done(1/2" stud) to just one bolt, to repair a damaged thread?

TS6

iTrader: (41)

As mentioned before, just helicoil it.


I run 1/2" studs on mine. It sure as hell can't hurt!

Inspector12

iTrader: (29)

Yes I have done it and it can be done if you don't want to do all of them ARP will sell you a single etc...