General Motors Corp. no longer will offer Vortec V-6 engines with different power ratings for its S-Series compact pickups beginning with 2000 models. Currently, GM's compact pickups are available with the 4.3L OHV V-6 (LF6/L35) as standard on 4-wheel-drive models, and 2-wheel-drive models offer the LF6/L35 as an option. The LF6 configuration develops less power and torque than the same 4.3L engine that is designated L35. Also, 2-wheel-drive models with the L35 enjoy lower power ratings ...

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