What is the torque spec. Didn’t see it provide paperwork 
I’m thinking 45-55
thanks

Richard, those aluminum heads are a big investment; be patient and wait for an answer from someone who knows. Better still, call John Mummert, or send an email to Ted Eaton (eatonbalancing@yahoo.com). Good luck!

Grade 8 bolts with washers.  70 lb/ft for the short bolts and 75 lb/ft for the long bolts.

Lorena, Texas (South of Waco)

Thanks Ted more then I thought. I’m using ARP studs washers and nuts. Had grind a grind a 11/16 socket to fit the outside short studs as the casting was too tight.  I’m going to increase the casting radius for the nut

Change of plan, I want to use the ARP bolts and washers, but cannot find a kit available. Please advise a source.
also see there is two sizes of the long bolts. Outside longer.   

https://alloyboltz.com/product-category/automotive-kits/engine-bolt-kits/ford-engine-kits/ford-y-block-engine-kits/

Hi    I got my kit from these people.  You may find a kit is not 100%.  The bolts for the front of the motor can change  if you add things like air con brackets etc.
You have to be careful as some go through into the sump area and could possibly hit the crank.They also sell individual bolts if the kit is not exact.
stuey
. 

I use ARP head stud kits on my three Y blocks with no issues.   The longer bolts go in the head dowel hole location.  Here is the lower ARP studs on aluminum heads.  Joe-JDC

JDC

Joe, do you recommend ARP studs for iron "G" heads as well?

I prefer the studs since they have the fine threads under the nuts.  In my opinion, that gives a better torque value with a high pressure lubricant.  The ARP studs have an allen fitting in the stud to make it easy to install or remove them.  You simply loosen the nut a turn, and use an allen wrench or allen socket to remove the stud with the nut and washer in place.  The studs are installed in the block just hand tight, or tight and back off a quarter turn.  Joe-JDC

JDC

Did you buy your studs from Mummert? I didn't see a listing for Y-block head studs on ARP's website.