ARP Catalog

LSX 376

LSX 376 Crate EngineGM’s LSX376 (PN 19171049) is an affordable street performance engine perfect for engine swaps.  It combines the strong economical LSX block with production LS3  high-flow, L92-style cylinder heads, camshaft and forged-aluminum LSX pistons. LSX376-logo valve covers distinguish the new crate engine for added pizazz. When equipped with a production LS3 intake manifold and injection system (not included), the LSX376 produces 450 horsepower and 430 lb-ft of torque. It can also be fitted with a carbureted induction system that can be tuned for greater power. The manifold and carburetor are available from GMPP.

Part number: 19171049
Engine type: LSX Series Gen IV small-block V-8
Displacement: 376ci/6.2L
Bore x stroke: 4.06 x 3.62
Block (P/N 19166454): LSX cast iron with six-bolt, cross-bolted main caps
Crankshaft: nodular iron
Connecting rods: powdered metal
Pistons: forged aluminum
Camshaft type: hydraulic roller
Valve lift: 0.551 intake/0.522 exhaust
Duration (deg @ 0.050 in): 04 intake/211 exhaust
Cylinder heads (P/N 12598594): LS3 rectangular port; as-cast with 68cc chambers
Valve size: 2.16 intake/1.59 exhaust
Compression ratio: 10.7:1:
Rocker arms: investment cast, roller trunnion
Rocker arm ratio: 1.7:1
Recommended fuel: 92 octane
Reluctor wheel: 58X
Balance: internal


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