Those Fel-Pro 1657 won't work on a stamped steel valve cover. There made for cast aluminium valve covers. You need to use either cork or something thick.(neoprene)
Your only option is the cork & rubber for the stamped steel valve covers.
It's very easy to over torque the bolts and bend the sealing flange with the cork & rubber gaskets. Be sure and take the time to check and correct where necessary or you may continue to have leaks even with new gaskets.
We offer a quality gasket for your application also
Superformance Products
