Thread: Piston deck height/ Quench question

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Probably wouldn't be a bad idea to get the block back first and mock up the motor without the rings though just incase it may be a few thousands of one cylinder to the other. Then I could tell them exact measurements to be at true zero deck.

Originally Posted by Dirtracer5

Probably wouldn't be a bad idea to get the block back first and mock up the motor without the rings though just incase it may be a few thousands of one cylinder to the other. Then I could tell them exact measurements to be at true zero deck.

What? Any variation cylinder to cylinder is going to be in either the rod dimensions, hole to hole; or the piston wrist pin to top dimension, hole to hole, right? Either is reason to return the parts for replacement, unless you want to take cuts off of the piston tops, then re-balance the whole shebang? Your "zero deck" is to first ensure that the surface is dead flat relative to the crank bore, while also providing the desired deck height relative to the piston top, unless I totally mis-understand.