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  7. Motorcraft & Holley 2 Stage Power Valve 70-59 (7hg, 2hg)
Motorcraft & Holley 2 Stage Power Valve 70-59 (7hg, 2hg)
Motorcraft 2 Stage Power Valve 70-59 (7hg, 2hg)

Motorcraft & Holley 2 Stage Power Valve 70-59 (7hg, 2hg)

Your Price: $24.95
1st stage 7Hg, 2nd stage 2Hg
Part Number: 70-59
Availability: In Stock
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Unleash Ultimate Performance with the Motorcraft 2150 2-Stage Power Valve

Revolutionize your vehicle's performance with our high-quality Motorcraft 2150 2-Stage Power Valve! Specifically designed for the Motorcraft 2150 carburetor, this power valve delivers a substantial performance boost. Don't hold back – give your car the upgrade it's been craving!

Experience Unparalleled Power and Efficiency

  • Precision-Engineered: Our power valve is expertly designed to ensure optimal fuel delivery and air-fuel mixture, resulting in exceptional engine performance.
  • 2-Stage Design: The innovative 2-stage design offers enhanced responsiveness and smooth power transitions, giving you superior control and drivability.
  • Superior Durability: Built with high-quality materials, this power valve is designed to withstand the test of time, ensuring lasting performance.

Holley 4 barrel and Motorcraft 2 barrel 2150 two stage power enrichment valve. 1st 7Hg, 2nd 2Hg

Great choice for carburetor designed to use the 2 stage power valve.


TESTING VACUUM FOR POWER VALVE SIZE
When the engine is at idle the vacuum is at the highest and the power valve (enrichment valve) is closed. As the engine speeds up vacuum drops and the power valve opens allowing more fuel into the carburetor.
On a 2 stage power valve such as these, the 1st stage opens up at a certain vacuum, i.e. 7,0 HG. This is at partial power. At close to full power the vacuum drops to very low HG, i.e. .5. This is where the 2nd stage opens allowing even more fuel to get to the main circuit.
The carburetor kits that include a 2 stage power valve are using OE specifications.
For other applications you will need to test the HG by hooking a vacuum meter to the engine and operate the engine at power and full power.

TECHNICAL HELP
Please be aware that you cannot replace a 1 stage valve with a 2 stage without replacing the valve cover with a larger one.
Changing from a 1 stage power valve on a carburetor that requires a 1 stage, to a 2 stage power valve is not recommended. If you aren't sure of what you are doing, you could cause too much fuel to be dumped into the carburetor.
Be sure the gasket is centered.
If the power valve has a recess for the gasket, then the gasket must fit into the recess.
Spray the gasket on both sides with silicon spray lubricant.
Spread a thin coating of Permatex gasket maker around the edge of the gasket. Do not get any on the face of the gasket. This will help keep fuel from leaking through the gasket.

APPLICATIONS:
You must match your carburetor number to get the correct part.
MAKE
YEAR
MODEL
CYLS
FORD/MERCURY
1983-86
230" 3.8L (A4OD A/T) (INC CANADA)
6
Click on Carb Number For Associated Parts.
CARBURETOR NUMBERS:

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