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Chevrolet Performance LS3 6.2L 376 c.i.d. 480 hp long block crate engines use an impressive 10.7:1 compression ratio to put out 480 hp at 5,900 rpm and 425 lbs.-ft. of torque at 4,600 rpm. They feature a cast aluminum engine block with a nodular iron crankshaft, powdered metal connecting rods, and hypereutectic pistons. The steel hydraulic roller camshaft has a .551 in. intake and .522 in. exhaust valve lift with 204 degrees intake and 211 degrees exhaust valve duration at .050 in. cam lift. Long block crate engines also include: * Ignition coil packs * Spark plug wires * Spark plugs * Intake manifold * Fuel injectors * Throttle body * Front timing cover * Aluminum water pump * Harmonic balancer * Passenger side right hand dipstick and tube THE HOT CAM ADDS HEAT TO THE LS3 Our engineers took a production LS3 6.2L (376 cubic inches) and swapped the stock camshaft for the racing-inspired LS Hot Cam (P/N 88958753), which delivered a stunning 495 horsepower and 473 lb.-ft. of torque. That's nearly 14 percent more power and torque from a simple camshaft change! We wasted no time in adding that terrific combination - dubbed LS376/480 - to our crate engine portfolio. The key to the power boost is the Hot Cam's 0.525-inch lift on both the intake and exhaust sides, along with 219-degree/228-degree duration specs. That's less lift on the intake side than the stock LS3 cam, but considerably more duration, allowing the valves to stay open longer to draw in more air from the rectangular-port L92-style heads. The crate engine package includes the intake manifold, throttle body and fuel rail, along with the ignition system. Use it with the LS376/480 controller kit P/N 19354330, which includes a special pedal for use with the engine's electronically controlled throttle.

• Specifikationer

  • Displacement (cu in): 376 cu in (6.2L)
  • . Front-End Accessory Drive Kits are available in two configurations.
  • Cylinder Heads (P/N 12629063): Aluminum L92-style port
  • Valve Lift (in): .525 intake / .525 exhaust
  • Recommended Fuel: Premium pump
  • . Includes Chevy F-Body wet sump oil pan
  • Connecting Rods (P/N 12649190): Powdered metal
  • Bore x Stroke (in): 4.065 x 3.622 (103.25 x 92mm)
  • Pistons (P/N 19207287): Hypereutectic aluminum
  • as cast with 68cc chambers
  • Rocker Arm Ratio: 1.7: 1
  • . Use LS376/480 Controller Kit, P/N 19354330 for engine operation. Kit includes electronic throttle pedal, which is required for throttle input to the ECU
  • . Not intended for marine applications
  • Camshaft Duration (@.050 in): 219° intake / 228° exhaust
  • Compression Ratio: 10.7: 1
  • Reluctor Wheel: 58x
  • Camshaft Type (P/N 88958753): Hydraulic roller
  • Part Number: 19432416 / 19434638
  • TECH SPECS
  • INSTALLATION NOTES
  • Rocker Arms (P/N 12669995 int): Investment-cast, roller trunnion
  • Crankshaft (P/N 12597569): Nodular iron
  • . Intended for pre-1976 street vehicles or any off-road vehicle
  • Block (P/N 12623967): Cast-aluminum with 6-bolt, cross-bolted main caps
  • Rocker Arms (P/N 12669993 exh): Investment-cast, roller trunnion
  • . Assembly does not include any electronics
  • Engine Type: LS-Series Gen IV Small-Block V-8
  • Valve Size (in): 2.165 intake/ 1.590 exhaust
  • Maximum Recommended rpm: 6,600
  • Balanced: Internal