Vortec 4.3L V6

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Part of the broadest full-size Work Van engine lineup,(1) the 4.3L engine offers a wide array of benefits:

• Standard on 1500 Work Van
• 195 horsepower at 4600 rpm and 260 lb.-ft. of torque at 2800 rpm
• Cast-iron cylinder heads
• Valvetrain that features roller rocker arms and hydraulic roller lifters
• Internal balancing that reduces stress on the high-capacity crankshaft
• Powertrain Control Module (PCM) with more than one megabyte of memory and 24 MHz processing speed
• The ability to travel up to 100,000 miles before the first scheduled spark plug replacement
• The Vortec 4.3L can also go up to five years or 150,000 miles (whichever comes first) before its first scheduled coolant change.(2)

1 Based on 2007 GM Large Van segment and latest available competitive information. Excludes other GM vehicles.

2 Maintenance needs vary with different uses and driving conditions. See the Owner's Manual for more information.