The 1970 Chevelle delivers a lot of horsepower and ft-lbs of torque. Make sure you have the gaskets that handle the pressure with the industry's best seal. For your head gasket we recommend our Multi-Layered Steel backed by our lifetime warranty. Stress formed embossments provide a dependable seal at extreme cylinder pressures. The stability from MLS gaskets reduces cylinder bore distortion for long lasting performance. The gaskets are offered individually for small block and big block Chevy applications or as part of an premium engine overhaul kit (for small block) which will include Ultra-Seal III intake manifold gaskets, timing cover gaskets, water pump gaskets and fuel pump gaskets. The kits also include molded rubber valve cover gaskets with steel carriers. We also offer engine overhaul kits for big block and small block Chevy featuring our Ultra-Seal head gaskets. Keep your Chevelle's engine compartment looking fresh with chrome products from Mr. Gasket. For a 454 big block, Mr. Gasket manufactures #9779 oil pan for big block Chevys 65-90.