I received the "581" gaskets today. I was surprised to see that they are .18" thick and they come with bolts and special washers.

Thanks again for your help with the part number.

Does 40 in/lbs sound correct for the torque spec?

Last edited by YO7_A66; 10/04/12 04:53 PM.
1970 YO7 A66 [Canadian Export] F8 Challenger
340 (Currently in shop for stroker assy.)