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Ford NASCAR engine. NASCAR engine bay. 1987 Ford Thunderbird stock car engine. Chevrolet NASCAR V-8 motor. Ford V-8 stock car engine. NASCAR, the highest governing body and top level division for stock car racing in the United States, has used a range of different types of engine configurations and displacements since its inaugural season in 1949.
One popular idea was to use 231–275 cu in (3.8–4.5 L) six-cylinder engines; instead of Cup Series' 358 cu in (5.9 L) V-8s. [5] [6] [7] In 1989, NASCAR changed rules requiring cars to use current body styles, similar to the Cup cars. However, the cars still used V6 engines. The cars gradually became similar to Cup cars.
NASCAR eventually adopted a restrictor plate to limit top speeds for the 7.0L engine as teams switched to small-block 358 cu in (5.9 L) engines. NASCAR edited the rules in a way that they hoped would make the cars safer and more equal, so the race series would be more a test of the drivers, rather than a test of car technology. [21]
NASCAR logo. The National Association for Stock Car Auto Racing (NASCAR) makes and enforces numerous rules and regulations that transcend all racing series.. NASCAR issues a different rule book for each racing series; however, rule books are published exclusively for NASCAR members and are not made available to the public. [1]
Each team may build its own cars and engines (per NASCAR's specifications) or purchase cars and engines from other teams. The cars are powered by EFI V8 engines since 2012 after 62 years using carburetion as engine fuel feed with compacted graphite iron blocks and pushrod valvetrains actuating two-valves per cylinder, and are limited to 358 ...
The Generation 1 in NASCAR refers to the inaugural generation of post-war cars used between 1948 and 1966. The first generation of stock cars used a strictly-stock body and frame, the doors were strapped with the use of seat belts being required, and a heavy-duty rear axle was mandated to stop the cars from rolling over during a race. [2]
Robert Yates, the head engine builder for Junior Johnson's team at the time, noted in an interview with author Tom Jensen for the 2002 book Cheating: An Inside Look At The Bad Things Good NASCAR Winston Cup Racers Do In Pursuit of Speed that the engine was indeed illegal. Petty stated at the time that only three of his engine's eight cylinders ...
The Next Gen body style was set to debut at the 2021 Daytona 500, [6] [7] but when the COVID-19 pandemic postponed all NASCAR racing (and therefore, testing) until the month of May, the sanctioning body announced that the debut of the car would be pushed back a year to 2022.