View Single Post
Old 11-10-2009, 10:08 AM
  #634  
TheYellaBrick
Senior Member
RACING JUNKIE
 
TheYellaBrick's Avatar
 
Join Date: Mar 2008
Location: Emmett, Idaho
Posts: 7,334
Default

Because NASCAR races are an 'endurance' type of engine activity, they use vast quantities of oil to cool the valve trains, hence return lines at the rear of the heads.
TheYellaBrick is offline