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Holley Single-Stage Power Valve 125-125

Holley Single-Stage Power Valve 125-125
Holley Single-Stage Power Valve 125-125Holley Single-Stage Power Valve 125-125
$24.99 ea
NEWBackordered until 09/02/2021Out of stock at HOLLEY PERFORMANCE PRODUCTS as of 08/01/2021
Model: 3991618
Supplier has not provided any fitment data for this product.
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There still seems to be a lot of misconception about Holley carburetors blowing power valves. Nothing could be further from the truth. Holley performance carburetors built since 1992 have utilized a power valve check system that effectively eliminated this infrequent problem. Consisting of a spring, brass seat and check ball, the check ball system is 100 percent effective protecting the power valve diaphragm from damage due to engine backfire.The power valve check ball is designed to be normally open but quickly seals to close off the internal vacuum passage when a backfire occurs. Once closed, the check valve interrupts the pressure wave generated by the backfire, thus protecting the power valve diaphragm. There is no way that the power valves diaphragm can rupture due to an engine backfire!
Features:
  • Includes Gasket
  • Opening Vacuum 2.5 in. Hg
Holley Performance Emission Code 5: This part is legal for sale or use on Emissions Controlled Vehicles; Uncontrolled (Non-Emissions Controlled) Vehicles; and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations

About Holley Performance Products

Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every Monster Energy NASCAR Cup team and nearly every NHRA Pro-Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley products for GM's popular LS engine are dominating the LS scene as well. Holley's products also include performance fuel pumps, intake manifolds and engine dress-up products for street performance, race and marine applications. As a single solution or partnered with products from other Holley companies we can give you the edge you need over the competition!

Downloads:

Download Name File Size
Warranty_Policy.pdf14.65KB

Specifications:

Emission Code 5
Part Type Carburetor Power Valve
WARNING CA Proposition 65 WARNING: Cancer and Reproductive Harm

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