GM Performance Crate Engine - LSX 454 - Long Block

Product Details

• Power: 627 HP @ 6300 RPM, 586 ft-lb of torque @ 5100 RPM
• Displacement: 454 CID, 7.4L Bore x Stroke: 4.185” x 4.125”
• Compression Ratio: 11.0:1 - Recommended Fuel: 92 Octane 
• Block: LSX Cast Iron with 6 bolt cross bolted main caps, internally balanced
• Crankshaft: 4340 Forged Steel, with 8 bolt flange, 58x reluctor
• Connecting Rods: 4340 Forged Steel
• Pistons: Forged Aluminum
• Camshaft: Steel Hydraulic Roller Tappet Cam 
  • Lift: .648” Intake / .648” exhaust
  • Cam Duration @ .050”: 236° intake / 246° exhaust
• Exhaust Lobe Separation: 110 Deg
• Cylinder Heads: Aluminum LSX LS7 Rectangular style ports
  • Combustion Chamber: 70cc Valves: 2.200” Intake/ 1.610”
  • Exhaust Rocker Arms: Cast roller trunnion, 1.8 ratio
  • Intake Valve: 2.200" titanium
  • Exhaust Valve 1.610" hollow sodium-filled
• Includes harmonic balancer, front and rear covers, valve covers
• Requires LS7 pattern intake manifold 

• *FREIGHT charges NOT included

  
  Note: Oil pan and oil pump pickup are not included. LSX valve covers do not have coil mount provisions, coils will need to be relocated

  Note: New engines require priming of oiling system prior to initial start up

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