The official FABO machinist/member collaboration, busted 340 thread
To say this block was in poor condition would be a severe understatement, even checking the decks in the block squaring fixture indicated one side unlevel front to rear, and the other deck unlevel and twisted... after decking the block to a true square condition, it resulted in the piston out of the deck far enough to push our compression ratio a bit high, so the solution was to mill the piston tops to end up at about 9.6 static with the iron heads. I'm going to call this thing "problem child" I do believe. But, we are making progress! Stay tuned!
To say this block was in poor condition would be a severe understatement, even checking the decks in the block squaring fixture indicated one side unlevel front to rear, and the other deck unlevel and twisted... after decking the block to a true square condition, it resulted in the piston out of the deck far enough to push our compression ratio a bit high, so the solution was to mill the piston tops to end up at about 9.6 static with the iron heads. I'm going to call this thing "problem child" I do believe. But, we are making progress! Stay tuned!