A general motors engine made from 1987 until 2002, which came in several different varietes and underwent several redesigns until it was replaced with the ecotec in 2003. It is a dual overhead cam, 16 valve, inline 4 cylinder gasoline engine. Various versions produced made from 150 up to 190 horsepower, depending on year model and vin number. Displacements ranged from 2.3L to 2.4L. A single-overhead-cam, 8 valve version was also produced as an economy version. It had the same displacement but only produced 110-115 horsepower.
The Quad 4 was once hailed as the powerplant of the future, having the power of a V-8 while the effeciancy of a 4 cylinder. It turned out to be a problematic engine. Before GM worked out the issues with head-gaskets, the ignition system, and other misc. problems the engine had already earned a bad reputation. This is especially because of the single-overhead-cam version, which used a horrible amalgamation of parts and was the worst version of this engine ever made.
The shining redeption of the Quad 4 was its potential as a FWD performance powerplant. It helped Oldsmobile win many SCCA SOLO2 and ISMA competitions, and set a land speed record in the early 90's with the Oldsmobile Areotech. Many hot rodders and tuners thus choose to use the quad 4 because of its potential.
I'm glad I have the 190 horsepower, W41 Quad 4 instead of the crappy single overhead cam version that everyone complains about.
Prices shown in USD.
Type your email address below to get our free Urban Word of the Day every morning!
Emails are sent from email@example.com. We'll never spam you.