10 Greatest Muscle Cars of All Times

Not all Buick GSX were Stage 1 (the badest Buick engine ever made). It was optional on all GS. A Buick GS Stage 1 is the same as a GSX Stage 1. The X is just an optional sport package that included Saturn Yellow or Apollo White (in 1970. '71 & '72 could have came in any color), stripes, spoilers, and a hood tach. That said, my dad owns a real #s matching, stock '72 Buick GS Stage 1 that other than lower compression and smog equipment is the same engine as a '70. It won Motor Trends Car of the Year in '72. The Buick Stage 1 was called the HEMI killer.

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