Moreover, the engines can be a maximum of 166 cubic inches. The 39th annual Chili Bowl Nationals, which has been held since 1987 in Tulsa, Oklahoma, will take place from January 13. NASCAR drivers ...

Teams are required to use a previously used engine — sealed so that most of the components are not tampered with — in 18 of the 36 regular-season events. Full-time teams must give NASCAR a ...

the engine must be used in the same vehicle number the next time it is used.” Another rule states that “seals must not be removed without prior approval by NASCAR,” and “if a race winning ...