GM 6.5L V8 EFI – DESIGN FEATURES

The 6.5L EFI V8 diesel is derived from the same block as the non-EFI 6.5L engine. All 6.5L engines share the following attributes:
• a four-stroke cycle
• a compression ratio of 21.3:1
• eight cylinders, each with a bore measurement of 103 mm (4.055 in) and piston stroke of 97 mm (3.818 in)
• high-swirl pre-combustion chambers to mix fuel and air efficiently, resulting in low exhaust emissions
• controlled turbocharged air intake pressure of between 2 and 8 psi at peak torque, based on engine speed, load, and other conditions
• the following power ratings

 

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