1970
| Std 250 cu in (4.1 L) Chevrolet I6 155 hp (116 kW)
| Esprit std 350 cu in (5.7 L) Pontiac V8 255 hp (190 kW)
| 346 400 cu in (6.6 L) Pontiac V8 265 hp (198 kW)
| L78 400 CID Pontiac V8 330 hp (246 kW)
| L74 400 CID Pontiac Ram Air III V8 345 hp (257 kW) |
| 400 CID Pontiac Ram Air IV V8 370 hp (276 kW)
| L74 (T/A std) 400 CID Pontiac Ram Air IV V8 335 hp (250 kW)
| LS1 400 CID Pontiac Ram Air IV V8 345 hp (257 kW)
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1971
| Std 250 CID Chevrolet I6 155 hp (bhp) 110 hp (82 kW)
| L30 350 CID Pontiac V8 250 hp (186 kW) (bhp) 165 hp (123 kW) (whp)
| L65 400 CID Pontiac V8 265 hp (bhp) 180 hp (134 kW) (whp)
| L78 400 CID Pontiac V8 300 hp (224 kW) (bhp) 250 hp (186 kW) (whp)
| L75 455 cu in (7.5 L) Pontiac V8 325 hp (242 kW) (bhp) 255 hp (whp) | LS5 455 CID Pontiac "H.O." Ram Air IV V8 335 hp (bhp) 305 hp (227 kW) (whp)
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1972
| Std 250 CID Chevrolet I6 110 hp
| L30 350 CID Pontiac V8 175 hp (130 kW)
| L65 400 CID Pontiac V8 200 hp (149 kW)
| L65 400 CID Pontiac V8 200 hp (149 kW)
| LS5 455 CID Pontiac "H.O." V8 300 hp (224 kW)
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1973
| Std 250 CID Chevrolet I6 100 hp (75 kW)
| L30 350 CID Pontiac V8 150–175 hp (112–130 kW
| L65 400 CID Pontiac V8 170–185 hp (127–138 kW) | L78 400 CID Pontiac V8 230 hp (172 kW) |
| L75 400 CID Pontiac V8 250 hp (186 kW)
| L75 400 CID Pontiac V8 250 hp (186 kW)
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1974
| Std 250 CID Chevrolet I6 100 hp
| L30 350 CID Pontiac V8 155–170 hp (116–127 kW)
| L65 400 CID Pontiac V8 190 hp (142 kW)
| L78 400 CID Pontiac V8 200 hp (149 kW)
| L75 400 CID Pontiac V8 250 hp (186 kW)
| LS2 455 CID Pontiac "SD" V8 290 hp (216 kW)
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1975
| L22 250 CID Chevrolet I6 100 hp
| L30 350 CID Pontiac V8 155 hp (116 kW)
| L76 350 CID Pontiac V8 175 hp (130 kW)
| L78 400 CID Pontiac V8 185 hp (138 kW)
| L75 455 CID Pontiac "H.O." V8 200 hp (149 kW)
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1976
|
| L22 250 CID Chevrolet I6 100 hp |
| L30 350 CID Pontiac V8 160 hp (119 kW)
| L76 350 CID Pontiac V8 165 hp (123 kW)
| L78 400 CID Pontiac V8 185 hp (138 kW)
| L75 455 CID Pontiac "H.O." V8 200 hp (149 kW)
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1977
| LD 231 cu in (3.8 L) Buick V6 105 hp (78 kW)
| L27 301 cu in (4.9 L) Pontiac V8 135 hp (101 kW)
| L34 350 CID Pontiac V8 170 hp (127 kW)
| L76 350 CID Oldsmobile V8 170 hp (127 kW)
| L78 400 CID Pontiac V8 180 hp (134 kW)
| W72 400 CID Pontiac V8 200 hp (149 kW)
| L80 403 cu in (6.6 L) Oldsmobile V8 185 hp (138 kW)
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1978
| LD5 3.8 L (231 cu in) Buick V6 105hp
| LG3 5.0 L (305 cu in) 5.0L Chevrolet V8 135 hp (101 kW) |
| LM1 5.7 L (350 cu in) V8 170 hp (127 kW)
| L78 6.6 L (400 cu in) Pontiac V8 185 hp (138 kW)
| W72 6.6L Pontiac V8 220 hp (164 kW)
| L80 6.6 L (403 cu in) Oldsmobile V8 185 hp (138 kW)
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1979
| | L27 4.9 L (301 cu in) Pontiac V8 135 hp (101 kW)
| L37 4.9L Pontiac V8 150 hp (112 kW)
| LG3 5.0L Chevrolet V8 135 or 150 hp (101 or 112 kW)
| LM1 5.7L Chevrolet V8 170 hp (127 kW)
| W72 6.6L Pontiac V8 220 hp (164 kW)
| L80 6.6L Oldsmobile V8 185 hp (138 kW)
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1980
| LD5 3.8L Buick V6 105 hp
| L37 4.9L Pontiac V8 140 hp (104 kW)
| W72 4.9L Pontiac E/C V8 155 hp (116 kW)
| LU8 4.9L Pontiac Turbo V8 210 hp (157 kW) |
| LG4 5.0L Chevrolet V8 150 hp (112 kW) |
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1981
| LD5 3.8L Buick V6
| LS5 4.3 L (265 cu in) Pontiac V8 140 hp (104 kW)
| L37 4.9L Pontiac E/C V8 155 hp (116 kW) | LU8 4.9L Pontiac Turbo V8 200 hp (149 kW)
| LG4 5.0L Chevrolet V8 150 hp (112 kW)
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