Chevrolet Performance LS3 Long Block
£7,949.20
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Chevrolet Performance LS3 Long Block
LS long-blocks from Chevrolet Performance offer the core capabilities of complete crate engines at a lower cost, allowing builders to finish the assembly their way.
The LS3 long block is delivered without the intake manifold, coil packs, water pump, exhaust manifolds or other accessories.
TECH SPECS
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 12729604): Cast aluminum with 6-bolt, cross-bolted main caps
Crankshaft (P/N 12736808): Nodular iron
Connecting Rods (P/N 12649190): Powdered metal
Pistons (P/N 19207287): Hypereutectic aluminum
Camshaft Type (P/N 12623063): Hydraulic roller
Valve Lift (in): .551 intake / .522 exhaust
Camshaft Duration (@.050 in): 204° intake / 211° 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
