Buick's GS 455 Made It Hard to Stay Away From the Muscle-Car Mania. ... closes 49° ATC, for a duration of 322°. Valve opening overlap is 66°. Lift at the valve is .3891-inch on the intake, ...

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.

This paved the way at Buick for the Buick Skylark Gran Sport 455 (often shortened to GS 455), which featured Buick's new 455ci big-block that put out 360 hp (4,600 rpm) and 510 lb-ft of torque ...

Auntie Gives Up on 1970 Buick GS 455, Abandoned in 1984 Because Everybody Wanted It. Published: 8 Apr 2024, 10:11 UTC • By: Bogdan Popa. 18 photos. Photo: eBay seller xolyman.

Larger valves with stiffer springs, high-flow port heads, a performance camshaft, ... From a salesman standpoint, the Buick GS 455 Stage 1 model had its best year in 1970.

MCACN 2017: 1970 Buick GS 455 Convertible. Arvid Svendsen Writer Dec 29, 2017. See All 4 Photos. In the early 1990s, Jason Line was at Brainerd International Raceway for an NHRA points meet.

This time, C&Z is checking out a drag race between a 1970 Buick GS 455 and 1968 Dodge Charger, two highly original muscle cars lining up for three runs down the quarter mile.

In Shuman’s story, the Buick GS 455 Stage 1 edged a ’71 W-30 prototype with a four-speed stick and ’70 sheetmetal, recording a 6.5-second 0-60 run to the Olds’ 6.6.