Casting # 302 heads for the price are great.Thats what I have on my 318.
I added a .430/.450 Mopar Performance cam, an old LD4B intake,
and a 600 cfm Edelbrock carb, and dual exhaust. :) :thumblef:
If you have more money the Magnum heads are nice, but you need to change the lifters,
pushrods,
valvetrain,
valvecovers,
and Intake to use the Magnum heads.That all adds up in price.