346 castings,are they any good?

[moparnut]

I bought a package deal with some misc mopar parts and there is a set of 346 heads,are they any good and what year did they come off of?
thanks

[Chryco Psycho]

71-72 heads , basically all B engine heads flow about the same so yes they are good , the only thing I like better is that early closed chamber heads for their quench properties [516& 915 castings ]

[moparnut]

thanks Chryco

[moparnut]

71-72 heads , basically all B engine heads flow about the same so yes they are good , the only thing I like better is that early closed chamber heads for their quench properties [516& 915 castings ]

what year are 516's?Where they previous to 915's with smaller valves?

[Chryco Psycho]

65-66 for the 516 & yes they have small valves , 1.60 exhaust , I always have stellite seats installed & go to 1.72 or 1.81 valves though