We have just finished putting the Y-block back together and noticed that the pistons were marked 0.90 over. The crank caps say 'ECZ' and the head's have a ECZ G'. All indications is that has been made into a 312 from a 292.
It is said that a 312 has a bore of 3.80 and over 0.90 is a bore of 3.84
QUESTION: What would the cubic inches be at with pistons that a 0.90 over ?
Thanks in advance,
Tim in Hot 'n Humid Florida