Cylinder head installation and torque values may not seem like a big deal, but they are. We've even had builders suggest no sealer on cylinder-head gaskets and even cleaning the factory clearcoat off head-gasket fire rings with carburetor or lacquer thinner. This allows for better heat dissipation and cylinder sealing because high revs actually lift cylinder heads off the block. Having a clean, undisturbed fire ring is critical during installation. Use Latex gloves to keep skin oil off your gaskets. Proper head gasket installation is confirmed by looking for the gasket in the lower left hand corner of this image. If they're installed properly, you will see the gasket.