Chevrolet Performance LSX454 Crate Engine

• Part Number: 19355573
• Engine Type: LSX-Series Gen-IV Small-Block V-8
• Displacement (cu. in.): 454 (7.4L)
• Bore x Stroke (in.): 4.185 x 4.125 (106.3 x 104.8 mm)
• Block (P/N 19260099): LSX cast-iron with six-bolt, cross-bolted main caps
• Crankshaft (P/N 19244018): 4340 forged steel with eight-bolt flange
• Connecting Rods (P/N 19166964): 4340 forged steel
• Pistons (P/N 19166958): Forged aluminum
• Camshaft Type (P/N 19166972): Hydraulic roller
• Valve Lift (in.): 0.648 intake / 0.648 exhaust
• Camshaft Duration (@0.050 in.): 236° intake / 246° exhaust
• Cylinder Heads (P/N 19354239): Aluminum LSX-LS7 port; with “as cast” 70-cc chambers
• Valve Size (in.): 2.200 titanium intake / 1.610 hollow, sodium-filled exhaust
• Compression ratio: 11.0:1
• Rocker Arms (P/N 12579615 int): Investment-cast, roll trunnion
• Rocker Arms (P/N 12579617 exh): Investment-cast, roll trunnion
• Rocker Arm Ratio: 1.8:1
• Recommended Fuel: Premium pump
• Maximum Recommended rpm: 6500
• Reluctor Wheel: 58X
• Balanced: Internal

Super-tough 

The LSX454 is filled with an all-forged, super-tough rotating assembly and features a pair of our deep-breathing LSX six-bolt cylinder heads. It also comes dressed with great-looking, orange powder-coated valve covers with engraved “LSX454” logos

An LSX with Big-Block power