Teams make engine changes before Daytona 500
NASCAR rules permit Sprint Cup teams to make one engine change without penalty between the completion of the Can-Am Duel qualifying races on Thursday and the Daytona 500 on Sunday.
A new engine awaits Regan Smith's No. 7 Tommy Baldwin Racing Chevrolet prior to Friday's Daytona 500 practice.
So Friday morning at Daytona, teams were busy putting in fresh powerplants in advance of two rounds of practice in the afternoon. Why do it now? Well, drivers can take their cars out and make sure their engines aren't leaking any fluids or making strange vibrations.
It's all part of what makes the Daytona 500 unlike any other Sprint Cup race, where an engine change after qualifying means you start the race at the rear of the field.
Check out Tom Jensen's Periscope video from the Daytona International Speedway garage area, as gives you an inside look of teams changing engines prior to Daytona 500 practice on Friday by clicking here.