Tthe NASCAR K&N Pro Series West can be traced back to 1954, when NASCAR came to the West Coast and began sanctioning the Pacific Coast Late Model circuit.

Through its years, the NASCAR K&N Pro Series West has had several titles. In addition to being known as the Pacific Coast Late Models it was called Grand National West, Winston West Grand National, and the NASCAR Winston West Series. In 2003, it was joined with what had been known as the Busch North Series and together they comprise what is now known as the NASCAR K&N Pro Series. 

NASCAR Sprint Cup Series driver Kevin Harvick was the 1998 West Series champion and NASCAR Camping World Truck Series driver Brendan Gaughan was a two-time series champion in 2000-2001.