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Vehicle Info NeededHOLLEYPART NUMBER: 510-300-253
300-253 EFI Throttle Body Intake Elbow
$84995
Ships on Sep 03, 2026
Lowest Price GuaranteeGM
Intake Elbows
Intake Elbows
EFI Throttle Body Intake ElbowFits GM LS Throttle Bodies 105 mm Throttle Body Opening Fits Intakes w/4500 Flange LS3 MAP Sensor Mounting (4) Vacuum Ports (2) Throttle Linkage Mounting Bosses Billet Aluminum Machine Finish
Holley 300-253 Features:
These machined billet aluminum EFI intake elbows allow the use of GM LS throttle bodies on any intake manifold w/ the 4500 mounting flange. Our design incorporates an optimized transition from the throttle body to the intake plenum for maximum airflow and distribution. Dual throttle cable mounting bracket bosses are included while the 4500 flange pattern allow the elbow & throttle body to be mounted forward, sideways, or rearward. The throttle bracket is included.Features (4) vacuum ports, MAP sensor port, machined / port matched to 4500 gasket, and 100° throttle body angle for extra hood clearance. Includes billet MAP sensor port cover, gaskets & hardware. The port design spacing will also allow a transducer to be used if a MAP sensor is not needed. The intake flange has an o-ring groove for a positive flange seal and the o-ring is included as well.- Fits GM LS Throttle Bodies
- 105mm Throttle Body Opening - 100° Mounting Angle
- Fits Intakes w/ 4500 Flange- designed to use the included o-ring for sealing
- The 4500 square flange pattern allows Forward, Sideways or Rearward Throttle Body Mounting
- LS3 Style MAP Sensor Mounting
- (4) vacuum ports, MAP sensor port,
- (2) Throttle Linkage Mounting Bosses
- Machined Billet finish
- Overall Height 6.38”
Emissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART
4-BBL Intake Manifold EFI Mounting Solution
Holley EFI Throttle Body Intake Elbows allow easy mounting of single-bore throttle bodies on any intake manifold using a 4150 or 4500-style carburetor flange. Each intake elbow contains slotted mounting holes for forward, sideways, or rearward throttle body placement and includes a MAP sensor port cover, gasket and hardware.
Part TypeIntake Elbow
Product LineHolley EFI Throttle Body Intake Elbows & Accessories
BrandHOLLEY
Package Height7.0
Package Width7.0
Package Length10.5
Weight4.2 PG
Part CategoryPerformance Parts
QuantitySold individually
Vendor Part Number300-253
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
