GOOD CYLINDER HEAD WITH GOOD VALVES , GOOD THREADS , GOOD COMBUSTION CHAMBERS , NEVER BEEN OVERTIGHTENED AND A THIN LAYER OF BLACK PAINT THAT WILL BLAST OFF . STUDY PICS CAREFULLY BEFORE YOU BUY, no blame please I'm just a man selling 50 year old parts, not new ones. ASK QUESTIONS SEE PICS. COME AND VIEW. THANKS, UK MAINLAND ONLY, NO SHOPS. highlands / islands will be more postage.