Notes: Head Gasket Ultra Seal BBM 361-440 1959-78 Graphite Core 4.450 Bore
Fits 1959-1978 Mopar 361-440 B/RB Engines - 4.380 Inch Gasket Bore - .038 Inch Compressed Thickness. Mr. Gasket Ultra-Seal Head Gaskets are a five layer (graphite core/perforated steel outer layers) composite construction. The graphite core has excellent thermoconductivity (transfers heat) away from hot spots in head preventing gasket burn-out. They provide excellent stability, compressibility and high temperature endurance. A high temperature silicone coating ensures sealing of engine fluids. Compatible with cast iron or Aluminium heads, they will not brinell (indent) Aluminium cylinder heads. Suitable for high performance street, drag race and oval track use. Sold individually. Features: Five layer (graphite core/perforated steel outer layers) composite construction Graphite core has excellent thermo-conductivity-transfers heat away from hot spots in head preventing gasket burn-out Provides excellent stability, compressibility and high temperature endurance Coated with high temperature silicone to ensure sealing of engine fluids Will not brinell (indent) Aluminium cylinder heads For high performance street, drag race and oval track use