Most aftermarket performance-oriented connecting rod bearings are marked “Upper” and Lower” to be used in these respective positions. Stock replacement rod bearings are generally not marked.

Ferrari has filed a patent for an engine with pill-shaped pistons, a radical departure from traditional circular piston ...

The cavities you see here are designed to fit the pistons and connecting rods. Here, the gas ignites and pushes the two components up and down. This causes the connecting rods to spin the ...