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Chevrolet Performance L99 6.2L / 400HP Engine


Chevrolet Performance
Chevrolet Performance L99 6.2L / 400HP Engine


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Nearly identical in performance and construction to the Camaro's manual transmission LS3 engine, the L99 engine (equipped in automatic transmission Camaro's) is 400hp with 410ft. lbs. of torque and is equipped with GM's fuel saving Active fuel management (AFM) technology. AFM enables the engine to cut off fuel to half of the cylinders in certain light load driving conditions, such as highway cruising, to reduce fuel consumption. Special lifters are used to deactivate the cylinders effectively turning the engine into a V4 (the remaining cylinders pump only air). the changeover from V8 to V4 is virtually imperceptible.

The L99 crate engine comes fully dressed with the 2010 Camaro oil pan, manifold assembly (including injectors, fuel rails and electronically controlled throttle), ignition coils, exhaust manifolds, balancer, water pump and 14" automatic flexplate.

Specifications:
  • Engine type: LS Series Gen IV
  • Displacement: 376 CID (6.2L)
  • Horsepower: 400 hp @ 5900 rpm
  • Torque: 410 lb-ft. @ 4300 rpm
  • Bore & Stroke: 4.06'' x 3.62'' (103.25 mm X 92 mm)
  • Block: Cast aluminum with 6 bolt cross bolted main caps
  • Crankshaft: 12588612 nodular iron
  • Connecting rods: 12607475 nodular iron
  • Pistons: 12626327 Hypereutectic aluminum
  • Camshaft: 12623066 hydraulic roller
  • Valve lift: .500'' intake, .492'' exhaust
  • Camshaft duration: intake 195? @ .050'', exhaust 201? @ .050''
  • Cylinder heads: 12629064 - L92 style port, 68cc chambers
  • Valve size: 2.16'' Intake; 1.59'' Exhaust
  • Compression ratio: 10.7:1
  • Rocker arms: 1.7:1 Roller trunnion
  • Reccomended fuel: 92 octane
  • Max RPM: 6,600
  • Reluctor wheel: 58X

    Does not included controller or harness, currently not available from GMPP

    GM Warranty



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