Gm4 stamp?
09-26-2016, 06:11 AM
#1
Gm4 stamp? Probably posting this in the wrong place, but....
I just bought a camaro that supposedly has an lt1 383.
I pulled the valve covers off and the head has a stamp wich reads gm4 inside. Anyone know what heads these are. I have not revealed any other casting numbers yet.
I just bought a camaro that supposedly has an lt1 383.
I pulled the valve covers off and the head has a stamp wich reads gm4 inside. Anyone know what heads these are. I have not revealed any other casting numbers yet.
