The 1965 NASCAR Grand National Series was the seventeenth season of the premier Grand National Series stock car racing championship sanctioned by NASCAR. It was the first year of the Gen 2 car. Stock bodies on modified chassis became the rule, with Holman-Moody, Banjo Matthews and Hutchenson-Pagan building chassis for teams. Due to the increasing speeds of the cars, the concerns for safety, and no availability of the Hemi to the general public, NASCAR outlawed the Chrysler hemi engine. Chrysler responded by withdrawing their support, and drivers Richard Petty, David Pearson, Paul Goldsmith, Bobby Isaac, and others were forced to sit out the races. Driver Ned Jarrett won the Grand National Drivers Championship after winning 13 of the 54 races he competed in. Ford won the Manufacturers Champ