Quote:
Originally posted by apr67:
What if the deck was square before you started? What if you took off more than you needed to just square the deck (but were sill legal on compression ratio)?
In both cases you are technically not legal, because it is not in the rules to allow you to do that. But the reality is, even if you have a car with a brand new engine (i.e. a crate) you are going to probably want to mill the block to increase the compression ratio to the max legal level. And no one is ever going to be able to say "The block only needed a thou off, you took two, you are cheating.".
There's no restriction on how much you could mill the block to true it, or even that it needs to be out of true beforehand, as long as it ends up within factory specs and doesn't increase the compression by more than 0.5 points. Blueprinting is by definition building the engine to the optimal factory specs.