Oldsmobile 4-4-2 W-30 versus Buick GS 455 Stage 1, A-body brothers each considered the “gentleman’s musclecar.” Sibling rivals when GM divisions competed.

Shop Buick GS 455 vehicles in Portland, OR for sale at Cars.com. Research, compare, and save listings, or contact sellers directly from 1 GS 455 models in Portland, OR.

The Wildcat was retired at the end of the 1970 model year, just as Buick equipped it with the biggest and most powerful V8 it ever had ...

Shopping for a replacement EGR valve for your vehicle and don't know where to start? Check out AutoGuide.com's list of the best EGR valves here.

During initial emissions testing by government officials, the Super Duty 455 was equipped with Transmission Controlled Spark working with the EGR to control emissions per the regulations.

A mechanic who was doing a repair on a Dodge Ram found an unexpected problem that caused a whole new level of alarm for him. The video documenting the situation comes from Dave’s Auto Center ...

Even predating the era of muscle cars and the fierce competition of the horsepower wars, Buick distinguished itself by prioritizing torque over traditional power ratings. This preference was ...

Big block V8 engines have plenty of utility for what it can provide consumers with its size. Here are 10 of the most iconic of the big block variety.

After a long and TLC-filled single-family ownership, this appealing 42k-mile (67,991 kilometers) 1970 Buick 455 GS Stage 1 is looking for a new owner.