GMC ENGINES NEW VORTEC DESIGN

Every Sonoma engine is equipped with sophisticated, electronically controlled sequential fuel injection, for quick response and assured reliability.

          ENGINES                            Vortec 2200 (LN2)           Vortec 4300 (LF6)     Vortec 4300 (L35)

Capacity/Configuration/Cylinders                      2.2L L4                          4.3L V6                        4.3L V6

Ordering Code                                                    LN2                                 LF6                             L35

Cubic-Inch Displacement                                    134                                  262                             262

Bore and Stroke (mm)                                 89.00 x 88.00             101.60 x 88.39          101.60 x 88.39

Compression Ratio                                            9.0:1                                9.2:1                          9.2:1

Fuel Delivery                                                       SFI                                  SFI                           SFI

SAE Net Horsepower @ RPM (2WD/4WD)     120 @ 5000 /                175 @ 4400 /         180 @ 4400 /
                                                                       180 @ 4400                  190 @ 4400

SAE Net Torque @ RPM (lb-ft) (2WD/4WD)    140 @ 3600 /                  240 @ 2800 /        245 @ 2800 /
                                                                        240 @ 2800                  250 @ 2800

SFI = Electronic fuel injection

                                                            Vortec 2200 (LN2      Vortec 4300 (LF6)        Vortec 4300 (L35)

Regular Cab      Short bed    2WD                         S                                 A                               S
                                                                      
                                                                                                               S                                A

Regular Cab      Long bed     2WD                         S                                A                                A

                                                 4WD                                 -                                            S                                           A

Extended Cab  Short bed      2WD                         S                                A                                A

                                             4WD                        -                                 S                                 A

S = Standard   A = Available   - = Not Available

                                                       Vortec 2200 (LN2)      Vortec 4300 (LF6)      Vortec 4300 (L35)

All 2WD Models:                                                    S                                S                                 S
5-speed manual with overdrive

4-speed electronic automatic with overdrive                A                                A                                 A

All 4WD Models:                                                    -                                 S                                  S
5-speed manual with overdrive

4-speed electronic automatic with overdrive                -                                 A                                 A

S = Standard   A = Available   - = Not Available