Chevrolet Performance 19419868 LS376/515 Carburated Crate Engine
Chevrolet Performance 19419868 LS376/515 Carburated Crate Engine
Chevrolet Performance Parts

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#35519419868

Chevrolet Performance 19419868 LS376/515 Carburated Crate Engine

  • Using the LS3 engine as its foundation, the LS376/515 crate engine adds a racing-derived ASA Hot Cam and a carbureted intake system
  • The LS3 is filled with components designed for high performance and longevity
  • The assembly includes an SS oil pan and LS3 cylinder heads, with high-flow, rectangular-port intake passages, as well as our unique, spider-type carburetor intake manifold
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Product Summary

Long Block Crate Engine Type, 10.7:1 Compression Ratio

  • Using the LS3 engine as its foundation, the LS376/515 crate engine adds a racing-derived ASA Hot Cam and a carbureted intake system
  • The LS3 is filled with components designed for high performance and longevity
  • The assembly includes an SS oil pan and LS3 cylinder heads, with high-flow, rectangular-port intake passages, as well as our unique, spider-type carburetor intake manifold
See more details

Key Specs

Crate Engine TypeLong Block
Compression Ratio10.7:1
Engine Displacement376 cu. in.
Camshaft TypeHydraulic Roller Tappet
Cylinder Head MaterialAluminum
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Chevrolet Performance Parts 19419868 Details

Big power for late-model vehicles

Using the LS3 engine as its foundation, the LS376/515 crate engine adds a racing-derived ASA Hot Cam and a carbureted intake system.

For street or strip 

The assembly includes an SS oil pan and LS3 cylinder heads, with high-flow, rectangular-port intake passages, as well as our unique, spider-type carburetor intake manifold.

LS376-515 Tech Specs

  • Engine Type: LS-Series Gen-IV Small-Block V-8
  • Displacement (cu. in.): 376 (6.2L)
  • Bore x Stroke (in.): 4.065 x 3.622 (103.25 x 92 mm)
  • Block: Cast-aluminum with six-bolt, cross-bolted main caps
  • Crankshaft: Nodular iron
  • Connecting Rods: Powdered metal
  • Pistons: Hypereutectic aluminum
  • Camshaft Type: Hydraulic roller
  • Valve Lift (in.): .525 intake / .525 exhaust
  • Camshaft Duration (@.050 in.): 226° intake / 236° exhaust
  • Cylinder Heads: Aluminum L92-style port; “as cast” with 68-cc chambers
  • Valve Size (in.): 2.165 intake / 1.590 exhaust
  • Compression Ratio: 10.7:1
  • Rocker Arms (int): Investment-cast, roller trunnion
  • Rocker Arms (exh): Investment-cast, roller trunnion
  • Rocker Arm Ratio: 1.7:1
  • Recommended Fuel: Premium pump
  • Maximum Recommended rpm: 6600
  • Reluctor Wheel: 58X
  • Balanced: Internal

Charts

CARB Warning

Follow EPA, CARB, and state regulations for engine changes

Emissions warning: this part is for vehicle engine changes, not direct oem engine replacements. In California, engine changes are legal when done in compliance with California bureau of automotive repairs (bar) engine change policy. For assistance, call bar referee at: (800) 622-7733. And see https://bar.Ca.Gov/consumer/smog_check_program/engine_changes. All customers must comply with federal epa mobile source enforcement memorandum no. 1a (and addendum) and all applicable state regulations when conducting engine changes. Improper installation and/or use of this part in California may subject the installer and/or owner to a $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and laws of all states for use of this engine change part on makes or models of vehicles that render them noncompliant with applicable state and/or federal emission laws with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine
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Chevrolet Performance Parts 19419868 Specifications

KEY SPECS
MFG. Part #19419868
BrandChevrolet Performance Parts
Crate Engine TypeLong Block
Compression Ratio10.7:1
Engine Displacement376 cu. in.
Camshaft TypeHydraulic Roller Tappet
Cylinder Head MaterialAluminum
Piston MaterialHypereutectic Aluminum
Crankshaft MaterialNodular Iron
Carburetor IncludedNo
Intake Manifold IncludedYes
Distributor IncludedNo
Connecting Rod MaterialPowdered Metal
Valve Covers IncludedYes
Engine BalanceInternal
Cylinder Heads IncludedYes
Rear Main Seal Style1-piece
Throttle Body IncludedNo
Timing Cover IncludedYes
Oil Pan IncludedYes
Water Pump IncludedYes
Harmonic Balancer IncludedYes
Flexplate IncludedNo
Flywheel IncludedNo
Air Cleaner IncludedNo
Spark Plugs IncludedYes
Spark Plug Wires IncludedYes
Computer IncludedNo
Wiring Harness IncludedNo
Recommended FuelPremium
Spark Plug StyleStock
GENERAL
Torque477 ft./lbs.
Horsepower515 horsepower
Combustion Chamber Volume68cc
Camshaft Duration (.050 in)226° intake / 236° exhaust
Camshaft Lift (in).525 intake / .525 exhaust
Bore x Stroke (in)4.060" x 3.620"
Warranty2 year / 50,000 mile
AssembledYes
Intake Valve Diameter2.165"
Exhaust Valve Diameter1.59"
Cylinder HeadsAluminum L92 style ports
Rocker ArmsInvestment-cast, roller trunnion
Rocker Arm Ratio1.7:1
BlockCast-aluminum with six-bolt, cross-bolted main caps
Sold in QuantityEach

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Fitment

  • GM LS3

  • GM LS3

  • GM LS3

  • GM LS3

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