the W53 "Sprint," was another SOHC six with 215 horsepower, thanks to a hotter cam, high-compression pistons, dual exhausts, and a four-barrel carburetor. A bigger block V8 of 400 cubic inches (6. ...

Though technically not an official limited edition run in the Firebird lineup, Sprints boasting the OHC-6 are still pretty rare, with Pontiac moving an estimated 4,662 Sprint coupes in '68 ...

Pontiac introduced five models in 1967 — the Firebird, Firebird Sprint, Firebird 326 ... with a new T/A 6.6 (liter) V8 — Pontiac switched to metric measurements that year — that produced ...

The 230ci unit was also the standard choice on the Firebird Sprint. However ... The icing on the Pontiac Firebird cake in 1967 was the 400ci four-barrel engine. The power rating was 325 hp ...