The VQ engine is a 2.0 L to 4.0 L V6 piston engine from Nissan. It is an aluminum DOHC 4-valve design with aluminum heads. Later versions feature variable valve timing. This engine is widely considered to be the world's benchmark V6 engine for its combination of smoothness, reliability and high power output.
The 3.0 L (2,987 cc) VQ30DE produces 190 to 227 hp (142 to 169 kW) @6400 rpm and 205 to 217 ft·lbf (277 to 294 Nm) @4400 rpm. Bore and stroke are 93 mm and 73.3 mm and it has a compression ratio of 10. The VQ30DE was on the Ward's 10 Best Engines list for 1995 through 2001. It is an aluminum open deck block design with microfinished internals and relatively light weight. The VQ30DEK produces 222 hp and was made for the (2000-2001) Nissan Maxima.
The improved VQ30DE used from 2000-2001 adds a true dual-runner intake manifold for better high-end performance compared to some earlier Japanese and Middle-East market versions of this engine. The 1995-1999 US spec VQ30DE was equipped with only a single runner intake manifold.
More Nissan VQ Engine Info:
Quality Used Engine Sources
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