The series was founded in 1954 with nine races on the schedule, many held at California venues including Oakland, San Diego, San Mateo, and Gardena. Lloyd Dane won the inaugural championship driving a 1953 Hudson Hornet. In its early decades the series sanctioned events on both dirt and paved tracks; the final race on a dirt oval was held in 1979, until dirt returned in 2018.
A significant expansion came in 1988 when the series traveled outside the United States for the first time, sanctioning an exhibition race in Australia. Between 1996 and 1998 the series also visited Japan, and in 1999 the season finale was held at Twin Ring Motegi, making it the first NASCAR points-paying race conducted outside North America. In 2003, NASCAR consolidated the Busch North Series into the West series, merging the two regional programs and standardizing regulations.
Cars in the series run on tubular or fabricated steel chassis with either a 105-inch or 110-inch wheelbase, a legacy of the 2003 consolidation that brought together the Busch North specifications (105-inch) and the former Winston West standard (110-inch). Power comes from a V8 pushrod engine displacing 358 cubic inches (5.8 L) with a 12:1 compression ratio, producing approximately 650 horsepower. Fuel delivery is via carburetion, and cars weigh at least 3,300 lb without the driver.
Body construction can be either hand-built steel or a one-piece composite shell. In 2014, NASCAR unveiled a new composite body style based on Cup Series Gen 6 designs, developed with Five Star Race Car Bodies and intended to reduce fabrication costs significantly. General Tire serves as the exclusive tire supplier across all ARCA and NASCAR international series properties. A four-speed manual transmission is standard, and both leaded and unleaded fuels are permitted, though unleaded is mandated when the series runs in conjunction with a national touring event.
The series operated through numerous sponsorship transitions, each bringing a name change: it became the Winston West Series early on, then moved to the NASCAR AutoZone West branding, before Camping World took naming rights for the 2008 season and K&N Engineering stepped in two years later. Each sponsorship era brought varying levels of investment and television coverage, but the core mission — developing western drivers — remained constant.
The series returned to dirt racing in 2018, an area it had vacated nearly four decades earlier, reflecting broader trends in American short-track racing where dirt ovals regained prominence. In 2020, the rebranding to ARCA Menards Series West aligned it formally under the unified ARCA umbrella alongside the Menards Series East, creating a coast-to-coast regional development framework beneath the national ARCA Menards Series.
Jack McCoy holds the all-time wins record with 54 victories, ahead of Ray Elder with 47. Elder, however, is the most decorated champion in series history with six titles, ahead of Bill Schmitt and Roy Smith, who each claimed four championships. A total of 110 different drivers have scored at least one series win throughout its history.
Several drivers who competed in the series went on to significant NASCAR Cup careers. Kevin Harvick and Ryan Blaney both used the West series as part of their developmental path, while Brendan Gaughan, Derrike Cope, Chad Little, and David Gilliland also made notable appearances. The West series has functioned alongside the East counterpart as the standard entry point for young talent seeking exposure to NASCAR-style oval racing before progressing to the ARCA Menards national series or the Xfinity and Cup tiers.
Spanning more than seven decades, the ARCA Menards Series West stands as one of the longest-running regional stock car racing programs in North America. Its 1999 race at Twin Ring Motegi marked a historic milestone as the first NASCAR championship points event outside the continent, demonstrating the series' willingness to explore international markets during an era of NASCAR's global expansion ambitions. Today it remains a key part of the talent pipeline for western drivers, operating out of a geography that historically lacked the dense short-track infrastructure of the American Southeast.
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