Motorhead
www.workmonster.com
heck, if there measuring EVERYTHING to the gnats ***, barely over lapping the valves will change it more than .17
Sorry, valves do not affect displacement at all; that engine was probably just worn out.
King Richard won a race with a big engine back in the day, and got caught; i think his brother-in-law was thrown under the bus for that. In that case, the fine was tiny in comparison to the size of the operation.