473 HP @6,000 RPM/ 444 LB-FT TORQUE @5,000 RPM
price: $10,250
part number: 19417356
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    Forged internal and six-bolt heads that support more boost 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 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. We deliver the LSX376-B15 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.

    Part Number: 19332320
    Engine Type: LSX-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 92 mm)
    Block: LSX cast-iron with 6-bolt, crossbolted main caps
    Crankshaft: Forged steel
    Connecting Rods: Forged powdered metal
    Pistons: Forged aluminum
    Camshaft Type: Hydraulic roller
    Valve Lift (in): 0.560 intake / 0.555 exhaust
    Camshaft Duration (@0.050 in): 210° intake / 230° exhaust
    Cylinder Heads: LSX-LS3 rectangular port; with “as cast” 68cc chambers and 6-bolt attachment
    Valve Size (in): 2.160 intake / 1.550 exhaust
    Compression ratio: 9.0:1
    Rocker Arms: Investment-cast, roll trunnion
    Rocker Arms: Investment-cast, roll trunnion
    Rocker Arm Ratio: 1.7:1
    Recommended Fuel: Regular pump
    Maximum Recommended rpm: 6,600
    Reluctor Wheel: 58x
    Balanced: Internal

    • 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 for carbureted applications
    • LSX 8-bolt crank flange
    • Assembly shipped without intake manifold or oil pan (dust shield installed for shipment)
    • Recommended max boost - 15 psi

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