I have a 455 Pontiac block #500813 with next to no wear on the cylinder walls $400 also a cam that was installed run for a short time and replaced with a mild one. $50.cam #XE256H-10, new pistons size 60#42525=$150 First pic is my stroked 455 (469) if you use the eagle kit. But its in a Ford truck. Needed something different.