I know that when you put older 351W heads on a 302 you have to drill out some steam holes to let the cooling system work right.
How about putting 302 heads (the GT-40P's) onto a 351W?
Does anything need to be modified other than the bolt holes drilled out to 1/2"?
thanks
How about putting 302 heads (the GT-40P's) onto a 351W?
Does anything need to be modified other than the bolt holes drilled out to 1/2"?
thanks