Anyone know what casting numbers are for 52cc heads. my brother claims his 79 267 had 52cc chambers and i was talking about 601 casting heads and he said those are it, and i already know there 58cc. anyone have any idea what he's talking about?

 

Maybe he got em milled down quite a bit?

 

14022601 heads are 53 cc from GM. They were used on 1982-1984 chevy vans and trucks with the RPO LE9 305. Used a 1.84" intake valve, 1.50" exhaust valve in the 305 application. The heads were originally for the 267 V8. Someone at GM thankfully decided that the 305 2bbl truck engine stunk and added those heads, a 350 cam, and a 4bbl Q-jet. 180 HP @ 4,700 rpm was the result.

Mortec info.

14022601...80-86...267/305......1.72"/1.5" or 1.84"/1.5" valves, 53cc chambers

I have a pair on a 355 and with a small cam they pull like a diesel.

 

so there are different CC heads with the same casting number? he said the chambers were heart shaped as well.

 

They look almost identical to the 350 vortec ones.