1978:
LD5 231 cid 2 bbl. V-6, 105hp@3400, 185ftlbs@2000, 8.0:1 comp., MPG: 16/28 for manual tranny, 19/27 for auto, produced at Flint, Michigan by Buick
LG3 305 cid 2 bbl. V-8, 145hp@3800, 245ftlbs@2400, 8.4:1 comp., MPG: 16/22 for manual, 17/25 for auto, produced at Flint, Michigan, Tonawanda, NY, and GM of Canada by Chevrolet.

1979:
200 cid 2 bbl. V-6, 95hp@3800, 160ftlbs@2000, 8.2:1 comp.
231 cid 2 bbl. V-6, 115hp@3800, 190ftlbs@2000, 8.0:1 comp.
267 cid 2 bbl. V-8, 125hp@3800, torque spec not available, 8.5:1 comp.
305 cid 4 bbl. V-8, 160hp@3800c 260ftlbs@2800, 8.4:1 comp.
 

1980:
229 cid 2 bbl. V-6, hp and torque unavailable, 8.6:1 comp.
231 cid 2bbl. V-6, identical to 79
231 cid 4 bbl. turbocharged V-6, 170hp@4000, 265ftlbs@2400, 8.0:1 comp.
267 cid 2 bbl. V-8, 120hp@3800, 215ftlbs@2400, 8.3:1 comp.
305 cid 4 bbl. V-8, 155hp@3800, 260ftlbs@2800, 8.6:1 comp.
 
 
 

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