Page 130 of GM Performance Parts 2006 Catalog by GM Parts Direct

128 GM Performance Parts does not utilize any used or remanufactured parts in this crate engine. GM Performance Parts crate engines include a twelve-month, 12,000-mile warranty. W 4.6L NORTHSTAR V-8 DYNO CHART 400 300 200 100 0 Horsepower: 320 6400 rpm Torque (lb-ft): 310 4400 rpm RPM 19156265 4.6L Northstar V-8 VVT The Cadillac of crate engines! When it comes to refinement and high-tech sophistication, you cant beat the 4.6L Northstar V-8 VVT. It is standard equipment in the popular Cadillac XLR sports car and is available in both the Cadillac SRX crossover vehicle and all-new STS performance sedan. An all-aluminum dual-overhead cam engine with four valves per cylinder, this is the redesigned 4.6L Northstar for rear-wheel-drive applications. It employs variable valve timing to optimize performance and economy at every rpm level and for every driving condition. A lowrestriction intake manifold and special cylinder head intake ports draw air from an electronically controlled throttle body. This crate engine is delivered in production trim, including the exhaust manifolds, fuel rails, injectors and water pump. An all-new engine, it makes a great alternative to salvage and rebuilt engines. Its high-tech look and smooth performance make it ideal for street rods and kit-assembled vehicles. 4.6L NORTHSTAR V-8 VVT SPECS: Part Number: 12499468 Engine type: DOHC V-8 Displacement (cu in): 278 (4565 cc) Bore x stroke (in) 3.66 x 3.30 (93 mm x 84 mm) Block: Aluminum Cylinder heads: Aluminum Compression ratio: 10.5:1 Fuel system: Port fuel injection Maximum rpm: 6450

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