Heavy-duty LS power for your truck

Our new 6.0L crate engine brings the modern performance of serious torque to your late-model and vintage truck projects.

PART NO. 12677741


360 hp @ 5400 RPM


380 lb.-ft. @4200 RPM

Best of both worlds

The L96 offers classic Big-Block grunt with all the modern advantages of an LS engine. Based on the same powerhouse offered in Silverado HD trucks, with 50% greater horsepower than the old 454 engines, L96 is the perfect choice for work and fun.

Connect & Cruise Powertrain System

Connect & Cruise Crate Powertrain Systems provide factory-matched engine-and-transmission combinations that include specially calibrated controllers and wire harnesses designed for retrofit installations in older vehicles.  

Installation Guides

Find everything from vital data about your engine’s capabilities to how to install it into your build.

L96 Tech Specs

  • Part Number:  12677741              
  • Engine Type: Gen-IV Small-Block V-8
  • Displacement (cu. in.): 364 cu. in. (6.0L)
  • Bore x Stroke (in.): 4.000 x 3.622 (101.6 x 92mm)
  • Block (P/N 12609999): Cast-iron with 6-bolt, cross-bolted main caps
  • Crankshaft (P/N 12588613): Nodular iron
  • Connecting Rods (P/N 12649190): Powdered metal
  • Pistons (P/N 12589804): Hypereutectic aluminum (with polymer
    coating) with floating wrist pins
  • Camshaft Type (P/N 12626660): Hydraulic roller
  • Camshaft Duration (@0.50 in.): 193° intake / 200° exhaust
  • Cylinder Heads (P/N 12629062): Aluminum
  • Valve Size (in.): 2.000 intake / 1.550 exhaust
  • Compression Ratio: 9.6:1
  • Rocker Arms (P/N 12669995 int): Investment cast, roller trunnion
  • Rocker Arms (P/N 12681275 exh): Investment cast, roller trunnion
  • Rocker Arm Ratio: 1.7:1
  • Recommended Fuel: Regular unleaded
  • Maximum Recommended rpm: 6,000
  • Reluctor Wheel: 58X
  • Balanced: Internal

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Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance Parts may not meet Federal Motor Vehicle Safety Standards and emissions regulations and should not be operated on public roads. Chevrolet Performance customers are responsible for ensuring their use of Chevrolet Performance complies with applicable federal, state, and local laws, regulations, and ordinances. Many parts intended for racing or other “off-highway” use are not designed or tested for crashworthiness or to meet the safety needs of the motoring public, and may adversely affect the original intended performance or handling characteristics of the vehicle. These parts are designed and intended to be used with experts supervising their installation and use, to help assure the proper and safe operation of the vehicle.