1993 W41 Quad 4 Engine running
This is the first few minutes of an 1993 Achieva SCX Oldsmobile with the W41 DOHC "Quad 4" engine running after taking a 5 year nap. The engine suffered from a blown head gasket and/or several badly leaking valves. A new head and a little TLC brought her back to life. This car runs really well now! The W41 engine is a factory built Quad 4 with special cams and a special calibration to produce 190+ HP from a 4 cylinder normally aspirated engine.