SB Head Gasket Dilema

I had the same issue with my 67 273 afew years ago. What I did was use the Mopar orange head gaskets. They have a 4.060 and a .028 thickness. Not an ideal bore size, but it ran fine. The factory used a steel shim gasket at .020 thickness, but they have discountinued for many years. You could have custom gaskets made to your specs, but be ready to open your wallet wide. If it's a stock motor than than use the Mopar gaskets. Summit carries them, patr no. DCC 4120094, cost is 40.00.