Arp head stud torque ????????????

Posted By: 65racer

Arp head stud torque ???????????? - 12/10/14 03:33 PM

Does anyone know right off hand what the studs
are torqued on, I have lost my literature, and
my "crs" is kicking in,,,,,,,,,,I know I could go
to arp and download this info, but my old
dinosaur computer will not open a pdf file, so
I would appreciate any info,,,,,,thanks

Dave

Posted By: DAYTONA540

Re: Arp head stud torque ???????????? - 12/10/14 03:50 PM

70 ft. lb. in 25 lb increments. Hope this helps.

Posted By: Crizila

Re: Arp head stud torque ???????????? - 12/10/14 04:09 PM

Quote:

Does anyone know right off hand what the studs
are torqued on, I have lost my literature, and
my "crs" is kicking in,,,,,,,,,,I know I could go
to arp and download this info, but my old
dinosaur computer will not open a pdf file, so
I would appreciate any info,,,,,,thanks

Dave

ARP calls for 105 on my small block. The objective with studs is to be able to run higher torque #'s than conventional head bolts for more clamping power. Studs are to be run in to the block finger tight only - and their suggested torque #'s are with their lube.

Posted By: B G Racing

Re: Arp head stud torque ???????????? - 12/10/14 04:56 PM

Check with the head manufactures recomended torque,some aluminium heads don't want to exceed 70/75# and others 80/85#.Most high torque specs are for iron heads.

Posted By: Crizila

Re: Arp head stud torque ???????????? - 12/10/14 05:17 PM

Quote:

Check with the head manufactures recomended torque,some aluminium heads don't want to exceed 70/75# and others 80/85#.Most high torque specs are for iron heads.

Good to know ( and check ), although the paper work I got with my ARP studs did not discriminate between iron and aluminum heads. If you can't clamp with higher numbers than with regular head bolts, studs are kind of a waste - unless you take the heads off and on - often.

Posted By: 65racer

Re: Arp head stud torque ???????????? - 12/10/14 05:28 PM

Guess I should have said this is a stock
iron headed engine,,,,,,,,,,,,

Posted By: MR_P_BODY

Re: Arp head stud torque ???????????? - 12/10/14 05:30 PM

Quote:

Guess I should have said this is a stock
iron headed engine,,,,,,,,,,,,

And you never said.. BB or SB

Posted By: B G Racing

Re: Arp head stud torque ???????????? - 12/10/14 05:49 PM

To clear up any confusion the stud it'self should never be torqued only the attaching nut.We usually turn the stud in till it bottoms out and turn it out at least 1/4 turn.We lube all the threads and both sides of the washers.The two common lubes for all threaded componants are 30#oil and molylube.Torque values with oil are higher than with molylube since there is less friction when using the moly.There are quite a few advantages to using studs than bolts.

Posted By: 65racer

Re: Arp head stud torque ???????????? - 12/10/14 07:54 PM

Quote:

Quote:

Guess I should have said this is a stock
iron headed engine,,,,,,,,,,,,

And you never said.. BB or SB

Big block ,,,,,,

Posted By: Crizila

Re: Arp head stud torque ???????????? - 12/10/14 11:17 PM

Quote:

Quote:

Quote:

Guess I should have said this is a stock
iron headed engine,,,,,,,,,,,,

And you never said.. BB or SB

Big block ,,,,,,

Probably doesn't apply, but FWIW for a small block, stock head bolt torque is 90 lbs. Edelbrock aluminum heads recommend 95 lbs. I run eddys in a blower application with equivalent CR of 16.1 ( and more )at times. I run mine up to 105 ( believe that is an ARP recommendation ) with MLS gaskets.