Hi Peeps
I had a wire rung 200 block yrs ago with grp a gasket (yb 0611)
when i was on the greens i did 38,000 mile in 5/6 yrs which included track days ..1/4 mile days and general road abuse
never had a problem what so ever
there is better things out there for the cossie now like the wrc gaskets or cometics , but with these you have to make sure the block and the head is totally flat (slightly skim the block and head job done )
marco