There's an awful lot of spinning and vibration going on when a car's engine is running. Not only is it due to the crankshaft being spun by the pistons as they travel up and down during their strokes, ...

I'm building a 331ci stroker based on a Ford 302 short-block from DSS Racing. The paperwork that came with the short-block said the engine was internally balanced to 28.2 oz-in. I know the Ford 302 ...