I pulled this off Consumer Guide
http://auto.consumerguide.com/auto/u...specifications
Two engines were available. The NX 2000 carried a 140-horsepower, twin-cam 2.0-liter 4-cylinder, also found in the sporty Sentra SE-R and the Infiniti G20 sedan. The NX 1600 borrowed the Sentra's 110-horsepower, 1.6-liter four. A 5-speed manual transmission was standard, with 4-speed automatic optional on both models.
so your NX has a SR20? it must I guess to haev the 140HP which is pretty good why would u want 2 do an engine swap any ways