The GSX may have come late to the muscle car wars, but it certainly raised
some eyebrows when it arrived. With the optional (most have it) 455ci Stage-1 V8, it posted
some impressive numbers: an underated 360hp and 510 ft-lb. of torque. Even
though it was a big, heavy, well-equipped car, it was one of the few that
didn’t fear the Hemi. Heck, let’s stir up the pot a bit: it’d run with the
B-body Hemis all day long up to 100mph. The GSX is the quiet, classy,
understated beast while the “Hemi Hype” grabs the headlines.
The GSX boasted comfortable buckets, a 4-spd manual w/Hurst shifter,
upgraded suspension with 15”x7” rallye wheels, power front discs, 3.42 posi
rear, and a distinctive appearance package with rear spoiler and a hood
tach. Your only two color choices were Saturn Yellow or the less popular
Apollo White. A/C and a TH400 automatic were available.
Sources vary, but somewhat less than 700 were produced for 1970, with
about 400 equipped with the Stage-1 and less than 200 wearing Apollo white.
After 1970, the package was available on any GS, including the GS350. Sales
fell to 124 in ‘71, and less than 50 in ‘72.
Parts are no problem and the mechanics are robust. Typical GM rear rear
window rust applies, so examine the edges and under and over the rear
package shelf. There are lots of made up cars and our experience suggests
not all sellers are truthful about this -- be careful.
Predictions? If the current market holds, watch this one outperform
the market as a whole and begin to close on the category leaders.
note: this snapshot appeared in the Dec. 2005 issue of Collector Car Market Review
Buick GS Club of America |
Buick Club of America
Stage 1 Registry
|70 GSX Stage-1 ht, at
#2 $27,250 S msr 5/03
70 GS 455 ht, at #3+ $10,850 S kra 9/02
70 GS 350 ht,at #3+ $19,000 S bjaz 1/05
71 GSX Stage-1 htp, at #2 $34,500 S ksa 5/04
72 GS Stage-1 cnv, at #2 $17,400 S bjp 6/03
72 GS Stage-1 htp, at #2+ $29,500 S bjp 3/04
Listings include Gran Sports as comparables due to rarity of GSX