I got an "Edelbrock" head gasket set that came with a Fel-Pro PermaTorque head gasket (8171PT1) which seemed odd. Anyway I installed them with my Edelbrock heads and am wondering if these gaskets are okay with aluminum or should I use the "MLS" type? I'm looking at around 10.3:1 compression ratio.

One more note, I installed them on my engine stand then I realized that I won't be able to install the motor, I wasn't going to hook my sling to aluminum so I removed the heads and installed the motor. Now the real question is if these gaskets are okay to use are they okay after being torqued down once? Thanks.

I'll admit I've already installed them but I think I goofed up by doing so.

I've already pulled the heads and will use a different gasket.

 

I would not use them again, as a multilayer they crushed the first time they were torqued.