BILLET BLOCK (PPM)For those that want the ultimate in durability, performance and looks, this is it. This is a beautiful product with many features that make great horsepower and add durability. The block comes with the bore finished for the piston size you want to use. You can select a bore from 2. 717" up to 3. 1" The block kit includes everything you see in the picture including the 7 bolt billet side cover with an "O" ring to keep the oil in the crankcase. No paper