Could frank and me have 216 head gaskets on our motors without the triangle to allow oil up to the rockers?. On the 216 wasnt there a tube that came up from the block through the head to oil the rockers and maybe the gasket sets we got had 216 head gaskets instead of ones for a 235. If thats the case then it explains why grinding a groove through the threads on the headbolt allows some oil to the rockers. I am going to investigate this some more. Jeff
