Casting numbers for BBC GM Rect. port alu. heads
I need a little help, I have chance to buy a pair BBC GM rectangular port heads for a good price. I was wondering what casting numbers to look for and witch to avoid? I don't have the numbers on the ones I thinking about buying. I'm gonna go look at them tomorrow and would like to know what to look for.
I almost forgot they are gonna go on my 68 camaro with a 454 bored 30 over, otherwise almost stock. It is a street car.
Last edited by sune; 05-11-2004 at 04:27 AM.