NASCAR announced Saturday afternoon that the #43 of Erik Jones would be dropping to the rear for the start of Sunday’s Daytona 500 due to an engine change.
In addition, per rule 188.8.131.52.e (Single Engine Rule), the No. 43 will also start at the rear for race No. 2 of the 2021 season (Daytona Road Course).
The rule is as follows:
For the Daytona 500 Event, if a backup engine must be installed in the primary vehicle during the Event, that vehicle will be subject to all of the following:
• If the engine change occurs before the Qualifying Races, the vehicle must start at the rear of the field for the Qualifying Races.
• The vehicle must start at the rear of the field for the Race, providing that vehicle earns a starting position in the Race.
• The vehicle must start at the rear of the field for the next Race in which the vehicle earns a starting position.
— NASCAR —