Ah, the first day of spring and I'm out in the garage with the doors open assembling the top of my stroker.
I'm torquing the heads and I need some info. It's a 390 block with Edelbrock heads, felpro gaskets and ARP head bolts. The engine has a compression ratio of 10.2 to 1.
I'm currently at 90 lb ft. This is the Ford torque spec. for a 390. (63/67 427 is 100 lb ft. I'm assuming that's because of the steel shim gaskets.) Edelbrock calls for 110 lb ft on the top rail and 100 lb ft on the bottom, when lubed with "
oil or a suitable thread lube". The ARP bolts are 180,000 bolts and they call for a max of 111 when lubed with 30wt.
oil, or a max of 88 lb ft with ARP moly lube, which is what I used. Since I'm at the max torque recommended by ARP, I'm inclined to leave it where it's at. What do you think?