1990 Engine Specifications and Availability
|
RPO (Engine Code) |
Cyls-CID (Liters) | Injection | Horsepower @ RPM | Torque @ RPM
(Ft. Lbs.) |
Compression Ratio | # Produced* |
| LB9 (F) | 8-305
(5.0L) |
TPI | 210 @ 4400 | 285 @
3200 |
9.3:1 | 3,092 |
| w/ G92 | 230 @ 4400 (MT) | 300 @ 3200
face="Arial" size="1">(MT) |
||||
| B2L/L98 (8) | 8-350 (5.7L) | TPI | 245 @ 4400 | 345 @ 3200 | 9.0:1 | 2,415 |
* Total number produced under RPO, not limited to
IROC-Z production only.
NOTE: G92 option package includes dual
catalytic converters. On LB9s (305s), this option was only available with
5-speed and not automatic transmissions. All L98s (350s) came with the G92
package for 1990 standard.
TBI=Throttle Body Injection; TPI=Tuned Port Injection;
CID=Cubic Inch Displacement; HO=High Output, AT=Automatic Transmission, MT=Manual
Transmisison.
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