LSX454 | DEGROOTE HILL CHEVROLET BUICK GMC - Chevrolet Performance Crate Engines
Select Page

LSX454

627 HP @6300 RPM
586 LB-FT TORQUE

Category:

Description

LSX454 Tech Specs

  • 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