[427sharpe]

Just to try to get back to the line that was posted....
I highly recc'd FelPro blue gaskets, hi performance. I would avoid Detroit Gaskets like the clap. I use FelPro on my 535CID big block, and have never had a problem (11.75:1 compression). From what you say about where the leak happened, when you pull the head, check (recheck??) both it AND THE BLOCK SURFACE for absolute true---meaning flat. If the head or the block has a 'crown' in it, you'll never get a gasket to seal! Then check for any cracks in the head or the block (prayer is helpful here!). Also, after running the engine in for 150-200 miles, RETORQUE all the gaskets and recheck valve lash! FelPro says this is unneccessary, but it is cheap insurance. It sounds as if there is excessive gap between the head and the block on that side of the motor for the gasket to blow that fast, IF the gasket was properly torqued in the first place. Make sure you follow the correct torque sequence as well! Good luck!