For sale, Oval port Closed chambered heads, with flow sheet. I bought these 15 years ago don’t remember what for. They have been ported. One head has a small hole in the intake runner, cylinder #2. From what the shop told me the epoxy would work fine as long as there is not allot of water pressure in the block. Less than 15lbs. I removed the epoxy so the hole could be seen. Some epoxy must be put back before running the heads. Devcon is what I was told is used. The hole is marked by the arrow in the picture, it's smaller then a BB (.177). No hardened seats, just run lead additive. Any question just PM me. $400.00