The Edelbrock 39703 is a Victor Series Pro-Flo XT 90 mm single-bore throttle body for cable-driven GM LS Gen III and Gen IV applications. It is CNC-machined billet aluminum with a black anodized finish and has mounting provisions for both LS1 and LS2 bolt patterns. It uses a progressive throttle linkage, a thicker throttle blade and a dual return spring, and has a 1,000 CFM airflow rating. It comes with a GM factory throttle position sensor, idle air control valve, mounting hardware and gasket.
Notes:
- Cable-actuated; for intakes or elbows with an LS1 or LS2 style throttle body flange.
- Inlet bore: 90 mm. Air filter hose diameter: 3.75 in.
- Fuel injectors not included.
- Satin finish version: part number 3970.
Specifications:
- Brand: Edelbrock
- Part Number: 39703
- Part Type: Fuel Injection Throttle Body
- Bore Diameter: 90mm
- Gasket Included: Yes
- Idle Air Control Motor Included: Yes
- Venturi Quantity: Single
- Airflow Rate: 1000cfm
- Fuel Injectors Included: No
- Throttle Body Finish: Satin Black Anodized
- Throttle Body Material: Billet Aluminum
- Throttle Position Sensor Included: Yes
- Throttle Body Type: Multi Port Injection
- Throttle Body Actuation: Cable
- Hardware Included: Yes
- Manufacturer warranty: 12 months
Engine Applications
- Edelbrock XT Manifolds, Factory Chevrolet Manifolds, Fabricated Manifolds or any Plenum Intakes or Elbows implementing a LS1 or LS2 style mounting flange requiring a cable actuated Throttle Body.
Emissions Status
- For racing use only.
Race Use Only: This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).
FAQ
What does the Edelbrock 39703 fit?
It fits Edelbrock Pro-Flo XT manifolds, factory Chevrolet manifolds, fabricated manifolds, and plenum intakes or elbows with an LS1 or LS2 style mounting flange that require a cable-actuated throttle body.
Is the 39703 drive-by-wire?
No. It is a cable-driven throttle body.
What comes with the 39703?
A GM factory throttle position sensor, idle air control valve, throttle body mounting hardware and gasket.
What is the difference between the 39703 and 3970?
The 39703 has a black finish. Part number 3970 is the satin finish version.
Is the Edelbrock 39703 street legal?
It is not 50-state legal. Its emissions status is for racing use only.

