I have a 383 short block for sale, it has 1,400 miles on it. It is a factory 4 bolt main 350 block bored to 4.030 with an eagle 3.75 striker crank. It has gm powdered metel rods and kieth black hyperutectic pistons. With 64cc heads it is 10.5:1 compression. Has cleivite 77 rod/main bearing...