Thanks to DeLorean, 1966 Pontiac LeMans Gets OHC Straight-Six Engine
That engine, the Pontiac OHC 6, saw its showroom debut for the 1966 model year as the base engine in the Tempest and LeMans.
SlashGear8mon
The 1967 Pontiac Firebird Had This Engine Under The Hood & This Is How Much HP It Had
The standard ‘67 Firebird engine was a 230 cubic inch (3.8 Liters) inline six-cylinder with a single overhead cam (SOHC ... block V8 of 400 cubic inches (6.6 Liters), was available in two ...