and Performance Parts and Accessories
G12814 - 65-90 Mk Iv Big Block Head Gasket With Aluminum Heads
Composition Head Gasket (1965 -1990) Mark IV Big Block with pre-flattened copper wire ring and permatorque/blue stripe coating for engines with aluminum heads.
Bore sizes between 4.250" and 4.370"
Use with Mark IV (1965-1990) engines only.
Compressed thickness is 0.039"