The series was formed in 1987 as the NASCAR Busch Grand National North Series, originally racing in the northeastern United States across states including Maine, New Hampshire, Vermont, Massachusetts, New York, New Jersey, Connecticut, and Pennsylvania. Drivers could enter combination races held alongside the then-named Busch Grand National Series at circuits including Daytona International Speedway, Nazareth Speedway, Watkins Glen International, and New Hampshire Motor Speedway; combination races remained on the schedule until 2001.
Over subsequent years the series expanded southward and westward. By 2008 it was running events in eight states along the East Coast. A race at Greenville-Pickens Speedway in South Carolina prompted a rebrand to Busch East for the 2006 season. Races were added in South Boston, Virginia, and Nashville, Tennessee for 2007, along with East-West combination events at Iowa Speedway and Elko Speedway.
The series passed through several further rebrands:
NASCAR Busch Grand National North (1987–2005)
Busch East (2006–2007)
NASCAR Camping World East Series (2008–2014)
NASCAR K&N Pro Series East (2015–2019)
ARCA Menards Series East (2020–present)
The 2020 rebrand followed NASCAR's acquisition of ARCA in 2018, which folded the former K&N Pro Series East into a unified ARCA developmental structure. A companion series, the ARCA Menards Series West, operates as the western-facing equivalent.
In 1994, the series produced a distinctive historical footnote: Dale Shaw became champion of the then-Busch Grand National North Series without winning a single race during the season. This made it the first NASCAR-sanctioned series to produce a winless champion. The distinction remained unique within NASCAR until 2013, when Austin Dillon won the Nationwide Series championship without a win. Matt Crafton and Andrés Pérez de Lara later replicated the feat in the Truck Series (2019) and ARCA Menards Series (2024) respectively.
Cars run a 358-cubic-inch (5.8-litre) pushrod V8 producing approximately 650 horsepower, paired with a four-speed manual transmission. Minimum weight is 3,300 lb without driver. Fuel is Sunoco racing fuel; for races run alongside national series events, an E15 blend is used to match Cup, Xfinity, and Truck Series fuel requirements.
Teams may choose between building their own engines or running a specification engine supplied by a NASCAR-approved builder. Spec engine components are individually barcoded for verification during inspection. The series originally permitted V6 engines of up to 274 cubic inches, but these were phased out after the 1998 season as V8 engines became standard.
Since 2015, the series has required composite body panels based on NASCAR Cup Series Gen 6 models, developed with Five Star Race Car Bodies. Wheelbase options are either 105 inches or 110 inches; cambered or offset rear ends are prohibited. General Tire serves as the exclusive tire supplier.
The East has functioned as a direct pipeline to NASCAR's top tiers. Joey Logano, Martin Truex Jr., Ricky Craven, Austin Dillon, and Trevor Bayne all gained formative experience in the series. The circuit also develops crew members and officials: crew chiefs including Greg Zipadelli and Marc Puchalski came through the series' paddocks. Chase Elliott won back-to-back championships in 2010 and 2011 before ascending to national competition.
In 2011, NASCAR lowered the maximum competitor age across its regional touring series to 30, sharpening the series' developmental focus.