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.

1970 Buick GS 455 Base 44,489 mi. $37,000 $5,000 price drop Est. $683/mo* Get the AutoCheck Report Gateway Classic Cars (308 reviews) O Fallon, IL (614 mi.) Call Check availability Check availability ...

We begin our look at the best EGR valves with this part from the aftermarket auto parts experts at Dorman. Because this is a strictly vacuum-operated EGR valve, there is no electrical connector ...

In 1970, three GM divisions offered cars with a 455 V8. But while technology sharing was common within GM, these three engines were unique to each division: the Buick 455, Oldsmobile 455, and ...

This is caused by the EGR valve, the motor that drives these vents to open and close.” He explains that he was trying to get at a cooling pipe that needed fixing, and found the other issue while ...

We're checking out a drag race between a 1970 Buick GS 455 and 1968 Dodge Charger, two muscle cars lining up for three runs down the quarter mile.

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

The model year 1970 witnessed the departure of the 400 and the introduction of the 455ci (7.5-liter) engine, giving birth to the Buick GS 455. The engine could be had in multiple configurations.

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 ...

Buick had a big block engine developed in 1967 with a displacement of 400 cubic inches, later growing to 430. These were used in big Buicks like the Riviera and Electra, but in 1970, GM lifted its ...

EGR valves sit in a rough place that sees a lot of heat. Not only that, but soot, oil, or coolant (if the head gasket is failing) can mix with the exhaust and clog up the system.