Re: Block Deck Smoothness
I agree with Mike about Cometic.
I also think a perma-torque gasket would work fine, especially if he honed the surface with the Norton finishing stone.
The stone would knock down all the high spots and leave probably half of the original roughness or less.
Fel-pro says this :
Each type of Fel-Pro head gasket – whether it be PermaTorque® MLS, PermaTorque, solid or perforated core, single layer embossed steel, or other types – all require specific surface finish requirements.
If the surface is too smooth, the gasket will have less "grip" and may leak; if the surface is too rough, the gasket will have a difficult time conforming to surface imperfections and may also leak.
67 Chevelle convertible, 138 vin, original 4 speed, bucket seats, Marina Blue with black interior