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6.2L V8 SC (LS3)

Operations Manual:
 Operations Manual

Observed Power Curve:
 Power Curve | 


  • High flow cylinder head design to improve exhaust port flow
  • Enhanced valvetrain enables a more direct intake port
  • Returnless fuel injection with stainless steel fuel rail
  • Intake ports revised to match new cylinder head. The new composite intake manifold is manufactured with a lost core process improve runner to runner variation and to reduce flow losses. Acoustic foam is sandwiched between the outside top of the intake manifold and an additional “skull cap” acoustic shell to reduce radiated engine noise. Structural enhancements have been added to the manifold bosses.
  • Larger bore block with structural improvements improves block structure and bay to bay breathing
  • Pistons include design enhancements for the higher engine output
  • Higher flow injectors
  • Beauty cover has a revised appearance and acoustic treatment


  • Type: 6.2L Gen-IV V8 Small Block
  • Displacement: 6162 cid (376.0 ci)
  • Compression Ratio: 10.7:1
  • Valve Configuration: Overhead Valves (2 valves per cylinder)
  • Assembly Site: St. Catharines, Ontario
  • Valve Lifters: Hydraulic Roller
  • Firing Order: 1-8-7-2-6-5-4-3
  • Bore x Stroke: 103.25 x 92 mm
  • Fuel System: Port Fuel Injection
  • Fuel Type: Premium Fuel Recommended
  • Engine Orientation: Longitudinal
  • Valves Per Cylinder: 2
  • Bore Center: 111.76 mm
  • Engine Mass: 657 lbs (298 kg)
  • Application: Chevrolet Corvette (Base Exhaust Model)
  • Emissions Controls: Positive Crankcase Ventilation (PCV)
  • Horsepower: 418 hp (312 kW) @ 5400 rpm SAE CERTIFIED
  • Torque: 424 lb-ft (575 Nm) @ 4600 rpm SAE CERTIFIED
    Actual power levels may vary depending on OEM calibration and application.
  • Fuel Shutoff: OEM Defined
  • Materials:
    • Block: Cast Aluminum
    • Cylinder Head: Cast Aluminum
    • Intake Manifold: Composite
    • Exhaust Manifold: Cast Nodular Iron
    • Main Bearing Caps: Powder Metal
    • Crankshaft: Cast Iron with Undercut and Rolled Fillets
    • Camshaft: Hollow Steel
    • Connecting Rods: Forged Powdered Metal
    • Additional Features:
      • Extended Life Spark Plugs
      • Oil Level Sensor

Information may vary with application. All specifications listed are based on the latest product information available at the time of publication. The right is reserved to make changes at any time without notice.

Additional Features

  • The ECM uses state-of-the-art technology to optimize fuel and spark control.
  • Superior engine sealing system features one-piece rear main seal, one-piece front crankshaft seal, and controlled-compression gaskets on the oil pan, front cover, raised rail rocker arm covers, and intake manifold
  • Cast-iron crankshaft has undercut and rolled fillets for durability
  • Metric fasteners used throughout
  • 100% cold testing performed at engine plant to verify product quality

10800 S.W. Herman Road
Tualatin, OR 97062
© 2020 KEM Equipment, Inc.