I am sorry if this has been asked before and I couldn't find it even though I used the search feature. Here is my question, in the 1960s were steel shim head gaskets used on 230-250 engines? My 1979 GMC with a 250 had a composite gasket as does the newer engines that I have now. My 1966 impala with a stock 283 had a steel shim type gasket. I am sure there are people on here who have tore stock engines down and could tell me if they were ever used. Thanks in advance Jay
