383CI /450HP GTO/MAS Small Block

The most versatile engine at a great competitive price.  It all starts with a 383 cubic inch block and the Edelbrock E-Tec cylinder heads, offering an incredible 480 ft/lbs of torque @ 4400 RPM with a smooth linear delivery. The combination of a 4.000" bore and 3.750" stroke steel crank and hydraulic camshaft produces 462 HP @ 5500 RPM.


  • Horsepower: 450 @ 5200 RPM
  • Torque: 480 ft/lbs @ 4400 RPM
  • Compression Ratio: 10:1
  • Block: Cast Iron 4-Bolt Main with 1-piece rear main seal
  • Crankshaft: Forged 4340 Steel (externally balanced)
  • Connecting Rods: 5.7 I Beam with ARP Bolts
  • Pistons: Forged Aluminum
  • Camshaft: Hydraulic
  • Rockers: 1.5:1
  • Cylinder Heads: Aluminum Edelbrock E-Tec 62cc chamber
  • Intake:  Edelbrock RPM Airgap
  • Carburetor:  QuickFuel 750cfm Mechanical Secondary
  • Ignition:  HEI

Additional Parts Included:

  • 8" balancer
  • 5-quart oil pan with windage tray
  • Aluminum valve covers with oil cap (provisions for PCV breather)
  • Painted Steel front timing cover
  • Engine oil dipstick and tube (passenger side)
  • Brass freeze plugs
  • Spark Plugs

Price:  $CALL

All engines are computer balanced, blue printed, and dynoed before shipping.  Engines also come with build documentation and 2 year warranty.