One pair of older Autocraft steel chambered heads, 11/32 guides, cut for chevy springs (included), 1.5 exh and 1.8? intake (no valves, keepers, or retainers included), one chamber damaged. I believe they are 92mm. Hardware to assemble steel chambers to the heads is included. $350 plus shipping to your address. Everything is sold as is with no implied or expressed warranty. No Returns.