I have a set of #13 heads date code H049. They were on an engine I bought that was rebuilt. The heads were taken apart, cleaned, and reassembled.( ran out of money, came off a running car) I would have them checked out/ valve job before installing. Asking $500 plus shipping, or they could be picked up.The best way to contact me is my cell 847-501-1019 or email
[email protected]. Thanks Doug