Secure sealing between the cylinder heads and the block is a critical component of making reliable horsepower, so Chevrolet Performance puts the same engineering excellence and manufacturing precision into their gaskets, head bolts, and cylinder head studs as the blocks and heads they secure. Big Block cylinder head gaskets are available in a variety of materials and thicknesses. Piston-to-head clearances should be considered when selecting gaskets. Use Gen V for 1991-1992 applications. Gasket packages contain one gasket unless otherwise specified.

12363412 Chevrolet Head Gasket

• For 1991 and newer Gen V and Gen VI Big Blocks with aluminum heads and 4.250" to 4.370" bore size
• Has pre-flattened wire ring and stainless core which makes it ideal for saltwater marine use
• Compressed thickness is 0.039"