I'm running ARP bolts, not studs and I believe they were Mr. Gasket 0.028 compressed gaskets to increase the compression. But standard type gaskets. I've had some issues with this motor running hot and hitting upwards towards 215-220 on a couple of ocassions. I believe the gaskets were a little weak already from that. I blew #4 on the left bank and #1,5,6 on the right. Crazy.