Selected parameters
Model
Sierra
Select Other Engine Info
CPI, 90 Degrees
Engines listed as flexible fuel do not necessarily mean the vehicle is equipped for flexible fuel.
PTI
90 Degree
HO
E85 MAX, IRON
CRI, TURBO, VGT, ALUM, CSS50V
Iron
L61: 2.2L, 4Cyl, Aluminium, DOHC MFI LBZ: 6.6L, V8, DI, Turbo Diesel, inc HP
CRI, L6, VGT, ALUM, CSS50V, VAR 2
High Output Engine
LPG conversion can be accomplished on the engine.
HO, Active Fuel MGT