14-02-2019, 03:09 PM
After sorting through engine blocks in my collection and others, I have come up with 3 examples that are unsleeved and close to standard bore. I have stripped them of all valve gear, welsh plugs and studs, sadly many studs have sheared. I have given up on picking the old threads out and made up a couple of drilling jigs to facilitate helicoil insertion. My aim is to have 1 block that will cleanup to plus 20 thou for the new pistons I have. I was taken by surprise today to find one of the 3 blocks has CHROMIDIUM cast onto it with a 9E stamping so lets hope that one passes muster.