NEW PRICE. 557 CID Big Block Chevy Short Block, all American Parts. Bowtie TALL DECK high nickle marine block 4.5" bore MK 4. Crower blower crank 4.375 stroke with double key way cut in snout. Crower rods 6.405" w/sps 18 bolts. Ross pistons w/single eye relief. Hand fit speedpro rings. Mains are studed w/ARP. Short block was built with the intention of high endurance marine application. Internally balanced. All of these parts are NEW and have never been run. Compression would be around 9.5:1 with 118cc heads. I have no knowledge of the bearing clearances which would have to be verified by the buyer. Pickup only I will not ship this short block. $3000.