The violations come under two sections in the rule book that says “will be long block sealed by NASCAR and must be completely inspected by NASCAR before the engine may be disassembled by the team.

The rule Denny Hamlin violated, which TRD took responsibility for, reads as follows: all race-winning engines “will be long ...

The Ford 429 Boss big block engine shares an origin story similar to Chrysler's 426 Hemi, creating a production engine to qualify the race version for NASCAR use. Before 1969, Ford used a 427 ...

And that’s a pathway that could make sense for NASCAR. “The enemy is not the internal combustion engine. The enemy is carbon,” David Wilson group vice president and president of Toyota ...