can i use 68 heads 0n 70 block? do 68 heads have a smaller combustion chamber? will they raise compression? I did notice coolant passage difference.thanks chris
Yes you can definitely use them on your motor. I think the for the passage difference it's just a matter of using the right gasket for the year the head you use. Compression will be very close to what you had before, it's mostly the pistons and deck hight that change that.
