Head studs, Any one here using them?

93 Cobra needs input · 01-22-2003, 06:41 PM

I would like to get head studs for my new engine build up but I have heared you can't pull your heads off with the motor in the car. I don't care if it is hard as hell to get them off with the motor in the car but does anyone know if it can be done? Thanks

91GTturbo · 01-22-2003, 07:38 PM

I use ARP's and yes you can pull the heads with the motor still in the car. It's not that difficult, just have somebody there to help you out.

sn95gt19 · 01-22-2003, 07:50 PM

i know its next to impossible with the sn95's.........the brake booster is in the way, the only way i could get the studs in were to put the head on and then screw the studs in

93 Cobra needs input · 01-22-2003, 08:00 PM

Excellent, I was hoping that was the case. I've been told that the studs help keep aluminum heads from warping and aids in head gasket sealing. 91GTturbo do you have your block tapped for 1/2" studs? A machine shop told me that tapping 1/2'' studs on a factory block actually weakens the deck and is overkill on a stock block. Any opinions on this?

91GTturbo · 01-22-2003, 09:43 PM

Quote:

Originally posted by 93 Cobra needs input
Excellent, I was hoping that was the case. I've been told that the studs help keep aluminum heads from warping and aids in head gasket sealing. 91GTturbo do you have your block tapped for 1/2" studs? A machine shop told me that tapping 1/2'' studs on a factory block actually weakens the deck and is overkill on a stock block. Any opinions on this?

Nope, didn't do the block. I used the 7/16" to 1/2" studs (part # ARP-154-4005) with my Edelbrock heads and have had no probelms. I might mention though that I'm running out of fuel and haven't turned the boost up like I would like too. Once the new injectors and fuel pump go in, then will see.

As far as tapping the block for the 1/2" studs, I don't have any experience with it or know anyone personally who has done it. It does seem like overkill to me though, for what that's worth.

Dark_5.0 · 01-23-2003, 02:49 PM

How would a stud hold down a head any better than a bolt. What is the reasoning behind going with studs.

Just curious,

302 LX Eric · 01-23-2003, 02:59 PM

It's my understanding that a bolt only 'pulls' in one direction whereas a stud is effectively 'pulling' in both directions via the threads on each end. This effect is what makes the stud a better choice than a bolt - in high performance applications where it's needed.

E

PKRWUD · 01-23-2003, 03:38 PM

According to ARP, studs provide a more accurate torque reading. Something about the combined twisting force and pulling force that you get with a bolt throwing off the torque readings.

I could dig out the catalog, if you want, but that's basically what it says.

Take care,
~Chris

JaxTheDJ · 01-23-2003, 09:10 PM

I use ARP studs in my setup also,no problems at all removing the heads and you can torque them down a bit tighter,the studs are basically used in racing applications as not to wear the block threads out due to frequent removal,and as Chris stated they are stronger and give more accurate torque readings,I recommend them highly.

Coolbreeze · 01-23-2003, 10:36 PM

Good post... I wondering the same thing about bolts and studs. I already have the studs and was gonna use them and find out about removing the heads in the car, when and if I needed to remove them...

01-22-2003, 06:41 PM	#1
93 Cobra needs input Registered Member Join Date: Oct 2001 Location: Madelia,MN USA Posts: 58	Head studs, Any one here using them? I would like to get head studs for my new engine build up but I have heared you can't pull your heads off with the motor in the car. I don't care if it is hard as hell to get them off with the motor in the car but does anyone know if it can be done? Thanks __________________ 331 stroker, JE 8.5:1 pistons, H-beam rods, steel crank, main cap, msd with 3step, BBK ceramic long tubes,TKO, 4.30's, motorsport Z303, Victor Jr aluminum heads, crane gold 1.6, southside lift bars, 90/10 front, 50/50 rear, centerforce dual friction clutch, Vortech S-trim soon.

01-22-2003, 07:38 PM	#2
91GTturbo Registered Member Join Date: May 2001 Location: Valdese, NC Posts: 361	I use ARP's and yes you can pull the heads with the motor still in the car. It's not that difficult, just have somebody there to help you out. __________________ 91 single turbo vert

01-22-2003, 07:50 PM	#3
sn95gt19 motors done......woohooo Join Date: Mar 2002 Posts: 799	i know its next to impossible with the sn95's.........the brake booster is in the way, the only way i could get the studs in were to put the head on and then screw the studs in __________________ 95gt lazer red (98 cobra clone) Rice Haters Club Member #116

01-22-2003, 08:00 PM	#4
93 Cobra needs input Registered Member Join Date: Oct 2001 Location: Madelia,MN USA Posts: 58	Excellent, I was hoping that was the case. I've been told that the studs help keep aluminum heads from warping and aids in head gasket sealing. 91GTturbo do you have your block tapped for 1/2" studs? A machine shop told me that tapping 1/2'' studs on a factory block actually weakens the deck and is overkill on a stock block. Any opinions on this? __________________ 331 stroker, JE 8.5:1 pistons, H-beam rods, steel crank, main cap, msd with 3step, BBK ceramic long tubes,TKO, 4.30's, motorsport Z303, Victor Jr aluminum heads, crane gold 1.6, southside lift bars, 90/10 front, 50/50 rear, centerforce dual friction clutch, Vortech S-trim soon.

01-23-2003, 02:49 PM	#6
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	How would a stud hold down a head any better than a bolt. What is the reasoning behind going with studs. Just curious, __________________ 92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer

01-23-2003, 02:59 PM	#7
302 LX Eric or '331 LX Eric' Join Date: Jan 1999 Location: Columbus, Ohio Posts: 2,142	It's my understanding that a bolt only 'pulls' in one direction whereas a stud is effectively 'pulling' in both directions via the threads on each end. This effect is what makes the stud a better choice than a bolt - in high performance applications where it's needed. E __________________ 1991 5.0 LX Coupe - 40,750 miles 331 cu. in. / Tremec 3550 / BFG Drag Radials 12.22 @ 114.31 mph - w/1.89 60'

01-23-2003, 03:38 PM	#8
PKRWUD Junior Member Join Date: Mar 1999 Location: Ventura, California Posts: 8,981	According to ARP, studs provide a more accurate torque reading. Something about the combined twisting force and pulling force that you get with a bolt throwing off the torque readings. I could dig out the catalog, if you want, but that's basically what it says. Take care, ~Chris __________________ Webmaster: Rice Haters Club Jim Porter Racing Peckerwoods Pit Stop Support Your Local RED & WHITE!

01-23-2003, 09:10 PM	#9
JaxTheDJ Registered Member Join Date: Aug 2002 Location: Jacksonville,Fla. Posts: 134	I use ARP studs in my setup also,no problems at all removing the heads and you can torque them down a bit tighter,the studs are basically used in racing applications as not to wear the block threads out due to frequent removal,and as Chris stated they are stronger and give more accurate torque readings,I recommend them highly. __________________ Jack 1989 Mustang LX: Converted to Carb.650 AED Holley DP,Weiand Stealth Intake,Edelbrock Performer RPM Aluminum Heads,Hooker Super Comps, Ground Pounder Uppers and Lowers,Moroso Drag Springs,NEW COMP Xtreme Energy Cam and 1.6 RR. ,a few other goodies.*** New 1/4 times-12.50 1987 SC GT ( fast as hell) 2001 Powerstroke Tow Vehicle 1989 Coupe. Sometimes when you cry,no one sees your tears.......... Sometimes when you are happy,no one sees your smile......... But,FART just ONE time..........

01-23-2003, 10:36 PM	#10
Coolbreeze Registered Member Join Date: Oct 2000 Location: ~Columbus~GA~31909~ Posts: 156	Good post... I wondering the same thing about bolts and studs. I already have the studs and was gonna use them and find out about removing the heads in the car, when and if I needed to remove them... __________________ Mike Blown~AOD'ed~331~ T-top~ 86GT Check out car on my page here ------ > ~~My 86GT T-top ~~

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