What are the torque specs for aluminum heads? What do you use on the threads to read torque? I'm using ARP head studs on tfs tw heads.
I did 80 ft lbs up top and 85 ft lbs on the bottom bolts. Make sure they are done in the right sequence. Start in the middle and work your way outward.
On mine I've always done 85 on top 80 on the lower row. I use moly lube under the head bolt washers and under the bolts. Start in the middle, in steps from 40ft lbs, 60ft lbs, then 80ft lbs. I then go back and do the top row another 5ft lbs. I usually wait anywhere from an hour to maybe a whole night (depending on the amount of alcohol consumed ) then go back and check them all again. Make sure you don't overtorque the lower intake either. I put some thread sealer on the bolts and torque them to 12ft lbs. It'll take 4-5 passes to get them all torqued evenly. Good luck.
Dont forget to put some sealer on the lower bolts since they go into a water jacket, I used some permatex (but I am sure there is a better sealer as permatex is so thick it could mess up trq readings, I just did each side quick so the tex would not get hard).
good choice with the head studs... It is worth the little extra money to not have to worry about needing to retorque them again. I tryed to retorque my studs and it was just a waste of time...
