Browsing the "tech4" Tag

1988: Was Pontiac’s Experimental OHC 2.5 liter four, an Alternative to the Quad 4?

November 19th, 2018 | by BajaBusta

Caught under test in a handful of Pontiac 6000STE’s and five-speed Fieros, was this experimental 2.5-liter OHC four-cylinder engine.  The