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ED-46383 - Edelbrock SBC 383 408HP Pro-Flo XT EFI Vortec Black Trim w/o W/Pump

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Hi-Torq 383 Pro-Flo XT EFI 9.5:1 - (408 HP & 450 TQ)

This fuel injected 383 cubic inch small-block delivers horsepower, torque and increased mileage potential in street rods, muscle-cars or any demanding off-road vehicle. Starting with a GM Performance Parts GM ZZ383 short-block, this 383 cubic inch Chevy delivers 408 horsepower and a whopping 450 ft/lbs. of torque. The unique Performer-Plus roller camshaft delivers broad torque throughout the RPM range and up to 17" of vacuum at as low as 650 rpm! The ultra-modern Pro-Flo XT fuel injection system is complete with intake manifold, fuel injectors, fuel rails and throttle body, electronic engine control unit (ECU), easy-to-use handheld calibration module, distributor, preterminated two-piece EFI harness, and all necessary fuel system components. Additional qualities include: 100% brand new, GM ZZ383 short block with forged steel crankshaft, powdered metal rods and hypereutectic pistons, Edelbrock E-TEC 170 heads, Performer-Plus hydraulic roller camshaft, roller rocker arms and RPM Air-Gap intake manifold.

Power: 408 HP, 450 ft. lbs. of torque, click on Documents Tab for Dyno Sheet
Displacement: 383 CID
Bore x Stroke: 4.00” x 3.80”
Compression Ratio: 9.5:1
Recommended Fuel: 89 Octane
Block: Cast Iron, 1 piece rear seal, 4-bolt main caps.
Crankshaft: 4340 Forged Steel
Connecting Rods: HD Powdered Metal Steel
Pistons: Hypereutectic Aluminum
Camshaft: Steel Hydraulic Roller Tappet
Cam Lift: .462” Intake / .479” exhaust
Cam Duration @ .050”: 212 deg. Intake / 222 deg. Exhaust
Lobe Separation: 112 Degree
Cylinder Heads: Edelbrock 60975 RPM E-TEC, 3/8” screw-in rocker studs.
Combustion Chamber: 64cc
Valves: 1.94” Intake/ 1.55” Exhaust
Rocker Arms: Aluminum Roller, 1.5:1 Ratio
Valve Springs: 5821
Balance: External
Maximum GM Recommended RPM: 6000
Finish: Edelbrock Components are Black Powder-Coated Finish
Ignition Timing: Base 10 degrees BTDC, 32 degrees total

Engine Includes:
• Fully GM assembled long block
• Oil pump, pick-up and oil pan
• Edelbrock 3528 Pro-Flo XT EFI System
• Mallory EFI Billet Distributor
• Cast Aluminum valve covers with Edelbrock logo
• 8” Harmonic Balancer
• Front timing cover
• Water Pump NOT Included
• Oil Filter and Adapter
• Passenger Side RH Oil Dipstick and Tube


2 year / Unlimited mileage parts & labor warranty.

Optional Finishes and Water Pump Choices
SBC 383 408HP XT EFI with Polished Finish
ED46381 with Black Powder-Coated Finish
Optional Edelbrock Engine Break-In and Dyno Service


Edelbrock Performance Parts and Accessories

From Edelbrock intake manifolds to carburetors to EFI systems, Edelbrock parts run the gamut of high performance components. But with Edelbrock, you don't have to worry about their specializing in many areas, because they take performance just as seriously as you do. That means all their products are not just tuned and tested for performance, but for Edelbrock performance. With a racing heritage of almost 90 years, you can be sure Edelbrock won't be cutting corners when it comes to innovation and build quality. After all, they' have a reputation to protect.


  • 46383
  • 46383
  • Edelbrock
  • Special Order Item
  • New

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  • Item Requires Shipping
  • 500.0 lbs.
  • Free Shipping!
  • FREE 48 State Truck Freight Shipping (International shipping will require freight quote)

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