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318 Idle Valve

From : mountain audio video

Q: you cannot change the deck height of an engine block by changing the pistons and/or crankshaft. the deck height is the measured distance from the crank centerline to the top of the block deck where the head bolts on. you have your terminology confused pertaining to this subject the piston deck height is the dimension between the flat top of the piston and the deck of the block. the dimension between the centerline of the crank and the deck is the block deck height or block height. the original post referred to a piston deck height of .171 a little short for block height. john .