Most here probably know I installed a 312 crank in my '64 F100, milled the deck about .023", milled G heads .010, the cam is a copy of the 1957 stock cam by Oregon Cam installed 4* advanced and the pistons are cast Silvolite 312 bore .010" in the hole. I assembled everything about 12 years ago with no issues at all except for an annoying very slight antifreeze leak staining the sides of the block coming from the head gaskets. The gaskets are Fel-Pro composition that I later learned from this site are prone to this condition. Salt is now on Michigan roads so my winter project may? be to finally replace the present head gaskets with "Best" head gaskets. However, my build is not  high performance. So, what are the chances of successfully using steel-shim head gaskets just to up the compression, performance and efficiency a notch?  There appears to be no shortage of steel gaskets out there. Or have these gaskets outlived their shelf life? I recall back in the day (1960's) assembling at least two Y-blocks using steel head gaskets with no issues, one pair of heads I milled while in high school machine shop - was really cool we could do those things back then.  Thanks in advance for any input regarding steel head gaskets....



64F100 57FAIRLANE500