20-832 - 351W CRANK WIPER (20-832) This 351W Ford Crank Scraper allows you to maximize the horsepower savings in the oil system by removing the oil from the rotating assembly. The crank scraper mounts between the pan and the block and extends out toward the crankshaft. As the crankshaft spins the crank scraper catches oil spray and returns it to the bottom of the pan. This reduces windage around the crankshaft and frees up horsepower. Our crank scrapers are notched for stock stroke and rod combinations so it will need to be trimmed for larger configurations. Our Price: $18.00