So I purchased a low mileage (70k) 360 magnum and pulled the heads to install a set of EQ's and noticed that 1 piston is down in the hole a lot more than the other 7 at TDC. I don't have the proper micrometer to measure deck height but a rough measure is about .17 as compared to the others that are approximately .05 inch. This engine has never been apart since it left the factory and the markings are the same on all pistons. The cylinders look great with cross hatching visible and the same amount of slight carbon build-up. Any idea what this flaw is and how to remedy? Do I even need to be concerned?
This is going to be a budget street engine built for reliability with about 375 hp and 400 tq.
Would rather not have to replace the pistons or crank.[/QUOTE
I would first turn crankshaft forward and back and determine how far it moves before piston does.
