383ci 500hp LT1 Long Block Engine

383ci 500hp LT1 Long Block Engine

$8,599

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The LT1 383 is an excellent performing engine package designed for the LT1 Camaro and Firebird that won’t break the bank.

Peak Horsepower: 500bhp @ 6500rpm
Peak Torque:460lb/ft @ 4000rpm
Compression Ratio: 11.5:1
Operating Range: 1800 – 6300rpm
Required Fuel: 91+ Octane Pump Gasoline

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Block:

  • GM LT1 Cast Iron Block
  • Deck to Match Pistons
  • Bored 4.030”
  • Honed with Torque Plates and Pressure Washed
  • New Durabond Cam Bearings Installed
  • 4-Bolt Main Caps Installed, Line Bore and Hone
  • ARP Main Studs

Pistons:

  • Mahle Forged pistons with Anti Friction Coating

Bearings:

  • Clevite Main and Rod Bearings

Lifters:

  • Comp Cams Hydraulic Roller

Covers:

  • GM Factory Oil Pan
  • GM Factory LT1 Timing Cover

Gaskets:

  • Fel Pro Head Gaskets .040”
  • Fel Pro Performance Oil Pan, Timing Cover Gaskets

Crank:

  • Scat 9000 Series Cast Steel
  • 3.750” stroke
  • Internally Balanced Front and Rear

Rods:

  • Scat 4340 Forged I-Beam
  • 6.000” length
  • ARP Rod Bolts

Rings:

  • Mahle Plasma rings

Camshaft:

  • Comp Cams Hydraulic Roller

Timing Sets:

  • Cloyes Extreme Duty Roller Timing Set

Oil Delivery:

  • Melling Select Performance
  • Melling Pick Up Tube Tig Welded
  • Melling HD Drive

CYLINDER HEAD SPECIFICATIONS

Type:

  • GM Aluminum LT1 Castings
  • Three Angle Performance Valve Job
  • CNC Porting

Intake Valves:

  • Manley Stainless Steel 2.02″

Exhaust Valves:

  • Manley Stainless Steel 1.56”

Pushrods:

  • Smith Brothers 5/16 .083” Wall Hardened

Combustion Chamber:

  • 50cc Combustion Chambers

Spring Package:

  • BTR Double Valve Springs
  • BTR Hardened Retainers and Locks

Head Bolts:

  • ARP Performance

Rocker Arms:

  • Comp Cams Ultra Pro Magnum 1.6 ratio, 7/16 Rocker Studs