Block casting 1635729 - 1956 which has the engine mounts on the side of the block....hard to find for the low decks. The bore is 3.655" so it appears to be bore 30 over....the cylinders look really good I believe it could just be honed to clean up the cylinders. I have two sets of head options - one set has some pitting in the chambers, the other set is in good shape. I have two intake options -a 2 brl cast iron and a 4 brl Offy aluminum. It has poly pistons. No push rods, head bolts or valve covers.....I have these available for an extra cost. I have other 241/270/315/325 hemi and ploy engines and parts if you need something message me. I can ship via Fastenal -- buyer to arrange and I can drop off in Delavan, WI Fastenal. - price with pitted heads and 2 brl $800 -price with better heads and 2 brl $1050 -price with pitted heads and 4 brl $1100 -price with better heads and 4 brl $1350