SPI Piston Size
I went to order a piston, but they come in multiple "grades" according to Ford, which I'm assuming is sizes. Is there a way to measure for which size piston and rings I need?
I know about the 1.2mm vs 1.5mm difference, but am wondering about the bore size. I've had the car since 8,000 miles so I don't think it's been over bored or anything.