LS376/515 Chevrolet Performance Crate Engine


  • 6.2L 376 CID
  • ASA Hot Cam for more power and torque
  • Carbureted high-flow aluminum intake manifold
  • Requires LSX Ignition Controller
  • Exhaust Manifolds NOT INCLUDED

Available on backorder

Have your engine dyno tested by one of our professional engine builders to ensure everything is properly broken in. We can dyno your engine with your components to make sure everything is working harmoniously before shipping you the whole assembly drained and ready to install.

Shipping is free, but there is a delivery fee for residential addresses.

LS376/515 Crate Engine

P/N 19434640


  • Engine Type: LS-Series Gen IV Small-Block V-8
  • Displacement (cu in): 376 cu in (6.2L)
  • 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
  • Crankshaft (P/N 12685659): Nodular iron
  • Connecting Rods (P/N 12649190): Powdered metal
  • Pistons (P/N 19207287): Hypereutectic aluminum
  • Camshaft Type (P/N 88958770): Hydraulic roller
  • Valve Lift (in): .525 intake / .525 exhaust
  • Camshaft Duration (@.050 in): 226° intake / 236° exhaust
  • Cylinder Heads (P/N 12629063): Aluminum L92-style port; as cast with 68cc chambers
  • Valve Size (in): 2.165 intake / 1.590 exhaust
  • Compression Ratio: 10.7:1
  • 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: Premium pump
  • Maximum Recommended rpm: 6,600
  • Reluctor Wheel: 58x
  • Balanced: Internal


  1. Assembly does not include any electronics
  2. Use LSX ignition controller P/N 19171130 (includes harness)
  3. Includes Chevy SS wet sump oil pan
  4. Intended for pre-1976 street vehicles or any off-road vehicle
  5. Not intended for marine applications
  6. 770-cfm carb P/N 19170093 recommended for daily street use
  7. Front-end accessory drive kits are available in two configurations

Replaces P/N 19370412

Weight 415 lbs


19370412, 194342420

Click here to download installation information.

Chevrolet Performance Crate Engines include a 24-month or 50,000-mile (80,000 kilometer) limited warranty.

Click here for more detailed warranty information.


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Prop65WARNING: These auto parts can expose you to chemicals including phthalates and lead. Installing or using these parts can expose you to other parts containing these chemicals and to engine exhaust, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to