69 Cuda 440 said Fel-Pro 'Perma-Torque' gaskets do not require a 'sealant' to be applied to the gasket. Read the 'Fel-Pro' web site on 'pre-application' for Head Gaskets. They do 'not' recommend any sealer to be applied to their Perma-Torque Gaskets. Just that the Cylinder Head and Block Deck surface are clean, and free of oil. A couple of spray shots of 'Brake-Kleen' will remove any surface oil. Click to expand...