The LZ4 3500 is an OHV engine based on the 3.9 L LZ9 V6. It was introduced for the 2006 model year in the Chevrolet Impala and Monte Carlo. Bore is the same 99 mm (3.9 in), but the stroke is reduced to 76 mm (3.0 in) for a displacement of 3510 cc. It includes continuously variable cam timing (fixed overlap). It has a cast iron block and aluminum heads. Output is 211 hp (156.5 kW) at 5800 rpm and 214 lb·ft (290 N·m) at 4000 rpm. Horsepower rating changed for the 2007 model year to 224 hp (167 kW) at 5800 rpm and 220 lb·ft (298 N·m) torque at 4000 rpm. The Chevrolet Malibu, Pontiac G6, and Saturn Aura became equipped with this engine for 2007 (previously the Malibu and G6 had the non-VVT 201 hp (150 kW) 3.5 L LX9). In 2008 SAE ratings dropped the horsepower ratings to 219, keeping torque as is. On Pontiac G6 convertible models, horsepower was rated at 217.[WIKI]The LZE 3500 was an OHV flexible fuel engine based on the 3.5 L LZ4 V6 (it can use either plain gasoline or 15% Gasoline and 85% Ethanol, E85) and includes continuously variable cam timing (fixed overlap). It has a cast iron block and aluminum heads. Bore is 99 mm (3.9 in), stroke is 76 mm (3.0 in) for a displacement of 3510 cc (214 cu in). Output is 211 hp (157 kW) at 5800 rpm and 216 lb·ft (293 N·m) at 4000 rpm.[WIKI]
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