Chevy LS-Series Small-Block V-8 LS376/515 - 19434640

Big LS Power Designed for Carburetors

With the proven LS3 engine as its foundation, the LS376/515 crate engine matches the racing-derived ASA Hot Cam and a carbureted induction system to produce 533 horsepower at a stellar 6,600 rpm and 477 lb.-ft. of torque at 5,200 rpm.

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. At the heart of the engine is the ASA Hot Cam, which extends the performance range of the LS3 with more duration. That means it holds the valves open longer, enabling greater airflow at higher rpm.

You’ll need our LSX controller P/N 19355418 and Holley 770-cfm carburetor P/N 19420445 to complete the engine and get it running. And if you’re installing it in an older vehicle, use our Muscle Car Oil Pan Kit P/N 19212593.

INSTALLATION NOTES

• Assembly does not include any electronics

• Use LS/LSX Ignition Controller P/N 19355418 (includes harness)

• Includes Camaro F-body wet sump oil pan

• Not intended for marine applications

• Holley 770-cfm Carburetor P/N 19420445 recommended

• Front-End Accessory Drive Kits are available in two configurations

• Does not include exhaust manifolds or flexplate/flywheel

Technical Specifications

Part Number: 19434640
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 92mm)
Block (P/N 12623967 ): Cast aluminum with 6-bolt, cross-bolted main caps
Crankshaft (P/N 19431872 ): Nodular iron
Connecting Rods (P/N 12649190 ): Powdered metal
Pistons (P/N 19207287 ): Hypereutectic aluminum
Camshaft Type (P/N 88958770 ): Hydraulic roller
Valve Lift (in ): .525 intake / .525 exhaust
Camshaft Duration (@.050 in ): 226° intake / 236° exhaust
Cylinder Heads (P/N 12675871 ): Aluminum L92-style port; as-cast with 68cc chambers
Valve Size (in ): 2.165 intake / 1.590 exhaust
Compression Ratio: 10.7:1
Rocker Arms (P/N 12696105 int ): Investment-cast, roller trunnion
Rocker Arms (P/N 12681275 exh ): Investment-cast, roller trunnion
Rocker Arm Ratio: 1.7:1
Recommended Fuel: Premium pump
Maximum Recommended rpm: 6,600
Reluctor Wheel: 58x
Balanced: Internal