[Bryson]

Is their a difference between the 1972 250 head and a 1975 or later?

 

[matt167]

Different casting but they are interchangable. '72 and '75 should have the same valve sizes.. Been a while since I'v worked on a small 6, but IIRC, they have 1.35/ 1.56" valves

 

[Bryson]

Thanks for the info-

 

[cobalt327]

There's a little bit of info on heads, etc. here. What's the engine in?