I am converting to disc brakes on the front. Can someone please tell me if a 67 SS a/c car with 396 came with a 9 or 11" booster from the factory?

Are u puttin the correct 4 piston calipers or the easy way out with single piston?

I am pretty sure it is the single piston calipers in the kit.

I would say the 11", thats what chevy put on single piston calipers from the factory, i got mine from advance,

But basically the decision is, 11" will look more classic, when 9" will make it look more like a resto-rod, depends on what u want


****NOTE, if they are the single piston calipers, and u order brake parts, never tell the store it's a 67, tell them it's a 69

RICK T,
Thanks for your help and advise.