mountainexplorer
1/2 ton status
Does anyone know anything about this casting head?
According to Mortec:
14092360... 86-88... oval... open... 454 truck.
Who knows about valve size, intake runner ports, etc...
Are these better or worse than say mid-'70's era open heads.
According to Mortec:
14092360... 86-88... oval... open... 454 truck.
Who knows about valve size, intake runner ports, etc...
Are these better or worse than say mid-'70's era open heads.