19432776 Chevrolet Performance LSX376 B-8

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Description

19432776 Chevrolet Performance LSX376 B-8 Replaces 19260831, 19332312, 19417355
476 HP LSX376 B-8, Build Boost On A Budget

Discontinued, Call for availability

The affordable LSX crate engine has arrived!

Chevrolet Performance Parts takes the economical LSX Bowtie block and combines it with the LS3's high flow L92 style heads and mostly internal components we swap the pistons for forged parts), to create the affordable, high revving LSX376 crate engine. It represents the essence of LS performance - exceptional airflow capability in straightforward packaging that delivers huge performance without the power adder.

We deliver the LS376 without an intake or oil pan and without any front accessories. So whether you top the engine with a carburetor or production style fuel injection system, it's suitable for your street rod, '57 Chevy or '71 Camaro - be it on the street or on the strip.

Our horsepower and torque ratings are based on using the production style fuel injection system.

Note:

Due to the number of application variations, the LSX376 crate engine is supplied with a dust shield instead of an oil pan, Any LS style oil pan and pickup that will fit your chassis can be used. Also, the LSX376 valve covers do not include mounting provisions for mounting the ignition coil brackets. Aftermarket or custom relocation brackets must be used.

Specifications:
Power: 476 HP @ 5900 RPM, 475 ft. lbs. of torque @ 4700 RPM
Displacement: 376 CID, 6.2L
Bore x Stroke: 4.060” x 3.620”
Compression Ratio: 9.0:1
Recommended Fuel: 92 Octane
Block: LSX Cast Iron with 6 bolt cross bolted main caps
Crankshaft: Nodular Iron, standard 6 bolt flange
Connecting Rods: Powdered Metal Steel
Pistons: Forged Aluminum
Camshaft: Steel Hydraulic Roller Tappet
Cam Lift: .551” Intake / .522” exhaust
Cam Duration @ .050”: 204 deg. Intake / 211 deg. Exhaust
Lobe Separation: N/A
Cylinder Heads: Aluminum LS3 Rectangular style ports
Combustion Chamber: 68cc
Valves: 2.160” Intake/ 1.590” Exhaust
Rocker Arms: Cast Roller Trunnion, 1.7:1 Ratio
Balance: Internal
Reluctor: 58X
Maximum GM Recommended RPM: 6600

Engine Includes:
• Fully GM assembled long block
• Harmonic Balancer
• Front timing cover

Installation Notes

Assembly does not include any electronics
Not intended for marine applications
Requires LS/LSX Ignition Controller PN 19355418 for Carbureted applications
Standard LS 6-bolt crank flange
Assembly shipped without intake manifold or oil pan (dust shield installed for shipment)
Recommended max boost-8 psi
Use LS3 engine control kit PN 19354328 for fuel injected applications
UPC 195491252738

More Details

19332312 Replaces 19260831 Chevrolet Performance LSX376 B-8
The LSX376-B8 is designed for lower-boost applications, up to about 8 pounds. That’s suitable for most supercharger and turbo kits that are designed to be used with production-based applications.

GM Performance Parts takes the economical LSX Bowtie block and combines it with the LS3’s high-flow L92-style heads and mostly internal components (we swap the pistons for forged parts), to create the affordable, high-revving LSX376 crate engine.
It represents the essence of LS performance—exceptional airflow capability in straightforward packaging that delivers huge performance without a power-adder.

We deliver the LS376 without an intake manifold (and other accessories). So, whether you top the engine with a carburetor or production-style injection system, it’s suitable for your street rod, ’57 Chevy or ’71 Camaro —be it on the street or strip.

Our horsepower and torque ratings are based on using the productionstyle injection system. More power can be realized by swapping that for one of our carburetor intakes and a well-tuned Holley four-barrel.

See reference guide P/N 88959384 for installing an LS engine in an older car.

NOTE: Due to the number of application variations, the LSX376 crate engine is supplied with a dust shield instead of an oil pan. See the LS Engine Components section for production-style oil pan choices. Also, the LSX376 valve covers do not include provisions for mounting the ignition coil brackets. Aftermarket or custom relocation brackets must be used.

LSX376 TECH SPECS
Part Number: 19171049
Engine Type: LSX Series Gen IV Small-Block V-8
Displacement (cu in): 376 cu in (6.2L)
Bore X Stroke (in): 4.06 x 3.62 (103.25 x 92 mm)
Block (P/N 19243171): LSX cast-iron with 6-bolt. cross-bolted main caps.
Crankshaft (P/N 12597569): Nodular iron
Connecting Rods (P/N 12607475): Powdered metal
Pistons (P/N 12166957): Forged aluminum
Camshaft Type (P/N 12603844): Hydraulic roller
Valve Lift (in): 0.551" intake / 0.522" exhaust
Camshaft Duration (@0.050 in ): 204deg intake / 211deg exhaust
Cylinder Heads (P/N 12615879): Aluminum L92 style port, with "as cast" 68cc chambers
Valve Size (in): 2.16 Intake / 1.59 exhaust
Compression ratio: 9.0:1
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: 92 octane
Maximum Recommended RPM: 6600
Retuctor Wheel: 58X
Balanced: Internal

Can be use with any of the following components

19244035 Intake Manifold

19244037 Intake Manifold

12610434 Intake Manifold

Oil Pan P/N 19212593

19244043 Supermatic 4L70-E Transmission

LSX376 completion Kits
electronic fuel injectionLS3 intake manifold 12610434
Ignition coil kit 19257878
Engine controller kit 19201861
High flow / 60PSI (400kPa) fuel pump(not available from GMPP)

Carburetor fuel system
Intake manifold (single plane) 19244035
Intake manifold (Dual plane) 19244037
Carburetor 19170095
Air cleaner 12342071
Ignition controller 19171130
Ignition coil kit 19257878
Fuel pump 6472657