Description

Chevrolet Performance LS3 6.2L 376 c.i.d. engine assemblies use an impressive 10.7:1 compression ratio to put out 525 hp at 6,200 rpm and 486 lbs.-ft. of torque at 5,200 rpm. They feature a cast aluminum block with a nodular iron crankshaft, powdered metal connecting rods, and hypereutectic pistons. The steel hydraulic roller camshaft has a .525 in. intake and .525 in. exhaust valve lift, with a 226 degree intake and 236 degree exhaust valve duration at .050 in. cam lift. Assemblies also include: * Ignition coil packs * Spark plug wires * Spark plugs * Intake manifold * Fuel injectors * Throttle body * Exhaust manifolds * 14 in. flexplate * Front timing cover * Aluminum water pump * Harmonic balancer * Passenger side right hand dipstick and tube

• Specifications

  • Rocker Arms (P/N 12669995 int): Investment cast, roll trunnion
  • . Assembly does not include any electronics
  • as cast with 68cc chambers
  • . Not intended for marine applications
  • Camshaft Duration (@0.050 in): 226° intake / 236° exhaust
  • Connecting Rods (P/N 12607475): Powdered metal
  • Part Number: 19432418 / 19434642
  • Balanced: Internal
  • . Use LS376/525 Engine Controller Kit for engine operation, P/N 19354332.
  • Valve Size (in): 2.165 intake / 1.590 exhaust
  • INSTALLATION NOTES
  • Displacement (cu in): 376 cu in (6.2L)
  • Crankshaft (P/N 12597569): Nodular iron
  • TECH SPECS
  • Valve Lift (in): 0.525 intake / 0.525 exhaust
  • Camshaft Type (P/N 88958770): Hydraulic roller
  • Engine Type: LS-Series Gen IV Small-Block V-8
  • Maximum Recommended rpm: 6,600
  • Bore x Stroke (in): 4.065 x 3.622 (103.25 x 92mm)
  • Block (P/N 12623967): Cast aluminum with 6-bolt, cross-bolted main caps
  • Compression Ratio: 10.7: 1
  • Cylinder Heads (P/N 12629063): Aluminum L92-style port
  • Recommended Fuel: Premium pump
  • Reluctor Wheel: 58x
  • . Includes Chevy SS wet sump oil pan
  • . Front-End Accessory Drive Kits are available in several configurations.
  • . Intended for pre-1976 street vehicles or any off-road vehicle
  • Pistons (P/N 19207287): Hypereutectic aluminum
  • Rocker Arms (P/N 12669993 exh): Investment cast, roll trunnion
  • Rocker Arm Ratio: 1.7: 1