302 casting on a set of 318 heads

Beautiful duster George! Any runtime on those heads?

Thanks, that is my Buddy Brian's Duster
Runtime on the 302 Heads are on their 2nd year now, running out perfect, no cracks, no antifreeze leaks, no head gasket leaks, Just Perfect !

Swapped out the New Single Valve Springs, for the Stock 340 double spring set after the new Mopar Performance 340 Cam was broke in.
Great Idle, Great Overall performance start to finish, No Boggs, Just Runs !