Chevrolet Performance LS376/515

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 open the valves 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) (see page 121) • 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   TECH SPECS Part Number: 19432420 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