The Stage 1 455 had specific primary metering ... There was also a series of very limited production Stage 2 cylinder heads made, but since Buick never cast any exhaust manifolds to match these ...

It aptly coded said options as Stage 1 and Stage 2 (the latter was seldom asked ... Mr. Doerge’s latest acquisition is a triple black 1972 Buick Gran Sport 455 Stage 1. The numerical part ...

Somehow, Buick didn’t get the message. For the 1973 model year, the Buick GS Stage 1 could be had a with a 455 cubic-inch Big Block engine topped with a four-barrel carb, essentially the same ...

but perhaps the luckiest recipient of the 455 was the Buick Skylark Gran Sport (shortened to GS on its badging), which could be purchased in Stage 1 and Stage 2 performance configurations ...

Retired Buick engineer Dennis Manner was quoted in Hemmings Muscle Machines as saying, “The whole Stage 2 package was worth about a half second over the Stage 1 and made 100 hp more.” ...

From the November 1969 issue of Hot Rod magazine: Those who appreciate good cars had an eye out for the GS 455. Buick may have the ... at 360 horsepower in Stage 1 dress. The standard GS 455 ...

but you'll find that Buick's GS 455 Stage 2 has a decided edge when it comes to power. Even if other manufacturers were ...

The Series 2 Viper V10 was the ... In the last production year of the Buick GSX, only 44 units were sold. There is no ...