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.
Specifications
- 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: Holley 750cfm Mechanical Secondary
- Ignition: MSD / 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
- Spart Plugs
Price: $5,899.00
All engines are computer balanced, blue printed, and dynoed before shipping. Engines also come with build documentation and 2 year warranty.




383CI/450HP GTO/MAS Small Block

