LSX454R | DEGROOTE HILL CHEVROLET BUICK GMC - Chevrolet Performance Crate Engines
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LSX454R

776 HP @7000 RPM
649 LB-FT TORQUE

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Description

LSX454R Tech Specs

  • Part Number: 19260835
  • Engine Type: LS-Series 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 cylinder head attachment
  • Crankshaft (P/N 19244018): 4340 forged steel
  • Connecting Rods (P/N 19166964): 4340 forged steel
  • Pistons: (P/N 19166958): 4032 forged aluminum
  • Camshaft Type (P/N 19166975): Mechanical roller
  • Camshaft Lift (in.): .738 intake / .738 exhaust
  • Camshaft Duration (@.050 in.): 250° intake / 270° exhaust
  • Cylinder Heads (P/N 19166979): Drag race cylinder heads six-bolt LSX aluminum
  • Valve size (in.): 2.250 x 6.370 intake / 1.625 x 6.400 exhaust
  • Compression Ratio: 13.1:1
  • Rocker Arms (P/N 19201808): Shaft-mounted with needle bearing fulcrum and tip
  • Rocker Arm Ratio: 1.9:1
  • Recommended Fuel: Race fuel (110 octane minimum)
  • Maximum rpm: 7100
  • Reluctor Wheel: 58X
  • Balanced: Internal