Bathurst 1974 saw Brock lead the race by 6 laps at lap 100. Engine troubles forced early retirement due to not following an order by team boss Harry Firth to slow down a couple of seconds a lap. Peter was sacked from Holden Dealer Team for failing to follow team orders.

In 1978 Peter Brock returned to the Holden Dealer Team after 3 years as a Privateer. Team Boss John Sheppard gave Brock the L34 instead of the superior A9X Hatchback, he went on to win the Sandown 500 Enduro, earning his postion as the team's No. 1 driver.

Bathurst 1976 saw Charlie O'Brien and Wayne Negus at the wheel of this car taking it to a top 4 postion.

Only 268 road going L34 Torana's were produced