I pulled apart the engine on my '72 ES and found a couple of surprises. I bought the car from the original owner, who had put about 60,000 miles on it before garaging the car. When I pulled the engine the front and rear bearing housings had red paint on them. It looks like overspray and made me wonder if the engine had been pulled before. I have not worked extensively on engines, but the pistons I have seen in Volvo engines before had a cut on the top indicating the part that should point to the front of the car; these did not. These pistons also had what appeared to be scoring along the skirt at the bottom on the sides but not the front or back portions. I wasn't getting any noise I would associate with piston slap and the cylinders seemed fine. Are these things to worry about or am I being paranoid. Oh, I measured the cylinders and they seem in spec, but I have cheap measuring tools and am waiting on the machine shop to give me the actual readings.