Farmall M head 8060 DB is the part number. Will fit 400 and 450 gas with flat top pistons. Will fit all gas W6, super W6, super W6TA, Farmall M, super M, and super MTA tractors. This head was just redone at Pakes and is in excellent condition, ready to bolt on. Customer went a different route with project is why this is for sale. Asking $600. Calls only, please leave voicemail if no answer. Thank you