John Z. DeLorean, then a rising star at GM's Pontiac Division, calculated that a six-banger with an overhead-cam rig could ...

The standard ‘67 Firebird engine was a 230 cubic inch (3.8 Liters) inline six-cylinder with a single overhead cam (SOHC) putting out 165 HP with a single one-barrel carburetor. The upgraded ...

The standard engine in the 1967 Pontiac Firebird was a 230 cubic inch (3.8 Liters) inline six-cylinder with a single overhead cam (SOHC -- an important automotive acronym) and 165 horsepower.