Piston compression height is the distance between the centerline of the pin to the flat part of the top of the piston. It's important to know this number when ordering pistons--especially custom ones- ...

Why do P29 pistons from D16A or ZC engines raise the compression ratio of a D16A6 when the bore and stroke are the same and the stock compression ratios are so similar? Compression ratio is affected ...

The compression ratio isn’t just a number: it’s one of the greatest determining factors in engine building. Compression ratio determines the type of fuel, how much boost, and has a significant ...