Why GM Dropped Pontiac’s OHC Six — and What Went Wrong Inside

Pontiac's OHC Six was one of GM's most ambitious engines. But premature camshaft wear and finger-follower problems raised serious questions about its durability. Discover the hidden engineering problems of the 1966–1969 Pontiac OHC Six, the Firebird Sprint, Pontiac's factory fixes, and why GM eventually discontinued this innovative engine. #PontiacOHCSix #PontiacFirebird #FirebirdSprint #ClassicCars #EngineHistory