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LSX376-B15

$10,221

MSRP

473 HP

@ 6000 RPM

19332320

PART NO.

444 LB-FT

@5000 RPM

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.

Tech Specs

Part Number: 19332320

Engine Type: LSX-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 (P/N 19260095): LSX cast-iron with six-bolt, cross-bolted main caps

Crankshaft (P/N 12603616): Forged steel

Connecting Rods (P/N 19259381): Forged powdered metal

Pistons (P/N 12662802): Forged aluminum

Camshaft Type (P/N 12638426): Hydraulic roller

Valve Lift (in.): 0.560 intake / 0.555 exhaust

Camshaft Duration (@0.050 in.): 210° intake / 230° exhaust

Cylinder Heads (P/N 19201805): LSX-LS3 rectangular port; with “as cast” 68-cc chambers/six-bolt attachment

Valve Size (in.): 2.160 intake / 1.550 exhaust

Compression Ratio: 9:1

Rocker Arms (P/N 12569167 int): Investment-cast, roll trunnion

Rocker Arms (P/N 10214664 exh): Investment-cast, roll trunnion

Rocker Arm Ratio: 1.7:1

Recommended Fuel: 87 octane

Maximum Recommended rpm: 6600

Reluctor Wheel: 58X

Balanced: Internal

Installation Guides

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*The Manufacturer's Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees and optional equipment. Click here to see all Chevrolet vehicles' destination freight charges.


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.

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*The Manufacturer's Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees and optional equipment. Click here to see all Chevrolet vehicles' destination freight charges.


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.