Edelbrock Performance Universal Throttle Bodies


UNIVERSAL 4-BARREL THROTTLE BODIES
These progressive 4-barrel throttle bodies bolt directly to standard square-bore or 4500 Series carb mount flanges for competition electronic fuel injection systems based on our Victor Series manifolds. Fully machined by Edelbrock and include a GM style throttle position sensor (TPS). #3878, #3879, and #3888 include a Delphi/GM idle air control (IAC) motor. #38783, #38793 and #38883 include a Hitachi (PWM) IAC motor (two wire). Standard style air cleaners (5-1/8" or 4500 series) will fit. Available in standard finish.
Universal 4-Barrel Throttle Bodies by Edelbrock
Application Emissions Satin Black
WITH DELPHI/GM IAC
For Standard Square-Bore Carb Mount Flange (1.75" throttle bores, 1000 cfm) 3878 3978
For 4500 Series Carb Mount Flange (2" throttle bores, 1600 cfm) 3879 3979
For 4500 Series Carb Mount Flange (2.25" throttle bores, 2000 cfm) 3888 3988
 
WITH HITACHI LINEAR IAC
For Standard Square-Bore Carb Mount Flange (1.75" throttle bores, 1000 cfm) 38783 -
 
WITHOUT IAC MOTOR
For 4500 Series Carb Mount Flange (2" throttle bores, 1600 cfm) Accepts GM/Delphi IAC only 3862 -
For 4500 Series Carb Mount Flange (2" throttle bores, 1600 cfm) Accepts MotoTron IAC motor only 38623 -
For 4500 Series Carb Mount Flange (2.25" throttle bores, 2000 cfm) Accepts GM/Delphi IAC only 3863 -
For 4500 Series Carb Mount Flange (2.25" throttle bores, 2000 cfm) Accepts MotoTron IAC motor only 38633 -
Edelbrock Installation Note INSTALLATION NOTE: It may be necessary to plenum match the carb flange of the intake manifold to eliminate a positive step created by the oversized bores of the #3888, 3988 & 38883 throttle bodies.

PRO-FLO XT THROTTLE BODIES
These 90mm single bore throttle bodies are designed specifically for use with our Pro-Flo XT EFI manifolds and Victor EFI intake elbows. They are ideal for high performance street, race and custom EFI system installations. Available for Chevy, Chrysler and Ford applications in satin or black powder coat finish.

Universal throttle bodies have provisions for either LS1 or LS2 mounting bolt patterns. They use a LS1 style TPS and 4-wire stepper motor IAC. They include an idle bleed screw to offer better idle control than other 90mm throttle bodies on the market. The bleed screw can be used to create a base amount of idle air flow instead of using throttle tip-in, leaving the TPS signal unaffected. Features a 4.5" diameter inlet flange and is ideal for use with Edelbrock Pro-Flo XT intake manifolds #7135, #71353, #7136, #71363, #7137, #71373, #7139, #71393, #7144 and #71443.

The Small-Block Ford throttle body was developed for use with our Throttle Body Intake Elbows or with our new small-block Ford Pro-Flo XT intake manifolds #7128 and #71283. Includes a Ford style TPS and provisions for a Ford style IAC motor, OEM or Edelbrock #36017. Uses a standard Ford 5.0L mounting bolt pattern and has a 4.0" diameter inlet flange.

Pro-Flo XT Throttle Bodies by Edelbrock
Application Emissions Satin Black
Universal 90mm Pro-Flo XT Throttle Body (1100 cfm) 3869 38693
90mm Pro-Flo XT Throttle Body for Small-Block Ford (1100 cfm) 3818 38183

Edelbrock Tech Note PRODUCT EMISSIONS GUIDE
The following guide is designed to help you determine which Edelbrock components are legal for use on your vehicle. Learn more about Edelbrock Product Emissions Guide.

    50-State Legal
    For Racing Use ONLY
    For Use on Pre-Pollution Controlled Vehicles (PPCV)
    Stock Replacement Part
    Engine Swaps