The product is called Plastigage. It is OK in a pinch but it is better to measure everything if possible. In testing green Plastigage, which is the one you would need, I have found results vary even when done multiple times on the same bearing.
Plastigauge (notice the spelling difference) is made in the UK and is about four times the cost. In my tests, it is more accurate and consistent.
But get a machine shop to measure everything and be sure the shop does not have a V8 only mentality. Tell them you need to know down to the 10,000th of the inch. Tolerances on Honda's are more critical than those for a Chevy 350.