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Chevrolet Performance 19417356
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Purchase A Select Chevrolet Performance Crate Engine and Receive $250 On a Prepaid Visa!

Chevrolet Performance LSX376-B15 376ci Engine

809-19417356

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Save $10 off $199, $45 off $499, $100 off $999. Promo Code: FALLFUN exclusions apply

$8,499.97
Chevrolet Performance LSX376-B15 376ci Engine $8,499.97
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LSX376-B15 376ci Engine
Replacement for 809-19332320
  • 473 HP @ 6000 RPM
  • 444 ft./lbs. TQ @ 5000 RPM
  • Chevrolet Performance 19417356 Details

    LSX376-B15 376ci Engine

    Installation Notes:

    • Assembly does not include any electronics
    • Intended for pre-1976 street vehicles or any off-road vehicle
    • Not intended for marine applications
    • Requires LSX Ignition Controller (P/N 809-19355418) for carbureted applications
    • LSX eight-bolt crank flange
    • Assembly shipped without intake manifold or oil pan (dust shield installed for shipment)
    • Recommended max boost - 15 psi

    Engine Break-In Procedure

    Use only engine oil that meets dexos1 specifications. For track events or competitive driving, use Mobil 1 15W-50 engine oil. Fill the engine with oil and follow the proper engine priming procedure.  Also check and fill as required any other necessary fluids such as coolant, power steering fluid, etc.

    Start the engine and listen for any unusual noises. If no unusual noises are noted, run the engine at approximately 1000 RPM until normal operating temperature is reached.  The engine should be driven at varying loads and conditions for the first 30 miles or one hour without wide open throttle (WOT) or sustained high RPM accelerations.  Run five or six medium throttle (50%) accelerations to about 4000 RPM and back to idle (0% throttle) in gear. Run two or three hard throttle (WOT 100%) accelerations to about 4000 RPM and back to idle (0% throttle) in gear. 

    Change the engine oil and filter. Inspect the oil and the oil filter for any foreign particles to ensure that the engine is functioning properly.  Drive the next 500 miles (12 to 15 engine hours) under normal conditions. Do not run the engine at its maximum rated engine speed. Also, do not expose the engine to extended periods of high load.  Change the oil and filter again, inspect the oil and oil filter for any foreign particles to ensure that the engine is functioning properly.

     

    Specifications:

    Shipping Weight:
    538
    Package Height:
    37
    Package Depth:
    41
    Package Width:
    41

    Forged Internals and Six-Bolt LSX Heads
    That Support More Boost!

    Free Shipping!

    For builders who want to stretch the performance of a turbocharged or supercharged combination, we've got just the foundation you need: Chevrolet Performance's new LSX376-B15, featuring a durable, all-forged rotating assembly to handle up to 15 pounds of boost.

    Chevrolet Performance's engineers started with the tough LS steel Bowtie standard-deck block, added a forged-steel crankshaft, forged rods, and forged pistons, then topped off the short-block assembly with high-flow, rectangular-port LSX-LS3 six-bolt aluminum heads for supercharged and turbocharged combinations.

    The LSX376-B15 is delivered without an intake manifold and other accessories, allowing you to tailor the induction system and other features to suit the forced-induction setup of your choice. It's perfect as an economical replacement for a late-model performer or a great choice to build a high-boost powerplant for a Pro Touring classic.

    *Horsepower and torque ratings were derived by GM Engineering using a normally aspirated LSX376 with LS3 EFI system. Your power numbers may vary, based on induction system and componentry.

    LSX376-B15 TECH SPECS:
  • Engine Type: LSX-Series Gen IV Small-Block V-8
  • Displacement: 376ci (6.2L)
  • Bore x Stroke: 4.065'' x 3.622'' (103.25mm x 92mm)
  • Block: LSX cast-iron with six-bolt, cross-bolted main caps
  • Crankshaft: Forged steel
  • Connecting Rods: Forged powdered metal
  • Pistons: Forged aluminum
  • Camshaft Type: Hydraulic roller
  • Camshaft Lift: .560'' intake / .555'' exhaust
  • Camshaft Duration (@.050 in.): 210° intake / 230° exhaust
  • Cylinder Heads: LSX-LS3 rectangular port; with ''as cast'' 68cc chambers and 6-bolt attachment
  • Valve Size: 2.160'' intake / 1.550'' exhaust
  • Compression Ratio: 9.0:1
  • Rocker Arms: Investment cast, roller trunnion
  • Rocker Arm Ratio: 1.7:1
  • Recommended Fuel: Regular pump (87 octane)
  • Maximum Recommended RPM: 6600
  • Reluctor Wheel: 58x
  • Balanced: Internal
  • JEGS Easy Kits are designed by JEGS high performance racing professionals to help you get all the performance parts you need for your race car, hot rod or truck.

    Easy Kits

    Some parts are not legal for use in California or other states with similar laws / regulations

    Motor Vehicles

    WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.

    Tools:

    WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.

    Electrical Cords

    WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.