Marine Diesel Cylinder Head Core - Used / As-Is

Application: Used marine/industrial diesel cylinder head core, believed to be Detroit Diesel 71-series (3-71 or one bank of a 6-71/8V-71) based on port layout and injector bores; exact model not confirmed from visible markings. Condition: Used core, sold as-is. Heavy surface rust, incomplete valvetrain, no crack testing performed. Best suited as a rebuildable core or parts donor. Buyer must confirm fitment by part number, photos, dimensions, engine model, serial number, and application before purchase. Used marine part sold as-is unless otherwise stated. No returns on electrical, used, special-order, or installed parts.