Shopping Cart

Your cart is empty.

Your cart is empty.

2Pieces 6.5Hg Single-Stage Power Valve Repalcement for Holley Carburetor 125-65 6.5' Single-Stage Power Valve Replace Holley # 12-65#5065 Power Valve

4.7 (3) Write Review
Free shipping on orders over $29.99

$16.90

$ 7 .99 $7.99

In Stock

About this item

  • This 2 Door Single-Stage Power Valve Fit For Holley 4150 4160 M2300 G59 Carburetors
  • PN: Replacement Holley 6.5 Hg Power Valve #125-65 (#5065 )With Gasket
  • Package Inluded 2X125-65 Carburetor Single-Stage Power Valve, 4X 125-65 Power Valve Gaskets
  • Qualified on the real carburetor for the test
  • Any questions please contact us for return or exchange


Product Description

Holley 125-65 power valves

125-65 power valves

The 125-65 power valves are an important component in the power enrichment circuit of Holley's performance carburetors. They operate by using engine vacuum to control their opening and closing rate. When they open, additional fuel is supplied to the main system during heavy load or under full power situations to eliminate hesitation and bogging--ensuring the smooth delivery of power without any drivability concerns. They're available in many different vacuum ranges to time the system's operation to your specific requirements, and they come in your choice of single-stage, two-stage, and high-flow designs.

Fit For Holley 4150 4160 2300 Carburetor

Fit For Holley 2BBL 2300 Carburetors

Fit For Holley R4412 Carburetor

Fit For Holley 4BBL 4150 Double Pump Carburetors

Fit For Holley 4BBL 4160 Carburetors

The 125-65 power valves kit Fit for Holley 4150 4160 M2300 Carburetors #The power valves is a vacuum-operated fuel valve that is designed to enrich the fuel flow to the engine under varied vacuum conditions. It is located in the metering block, and opens at a set vacuum that is determined by the spring it contains. Depending on the spring in the power valve, this can occur at varying engine rpm and directs extra fuel into the carburetor’s main power circuit. The valve itself is a small rubber diaphragm with a small coil spring. When opened, it allows fuel to flow through the calibrated opening in the metering block (power valve channel restrictor). This restrictor determines the amount of additional fuel delivered to the engine.


JA
Reviewed in the United States on January 20, 2025
great product
Chris Carter
Reviewed in the United States on January 14, 2025
Listing shows 2-port Power Valves and 4 washers. Items received are 4-port (higher flow) with just 2 washers. The higher flow Power Valves are NOT advised for stock engines, so these will NOT work for my application. Threads on these are NOT the same as on original item. See photos. Amazon won't return for credit. Do NOT buy these.
Lois B Johns
Reviewed in the United States on October 21, 2024
Product looked fine, but when tested they were not calibrated to the posted 6.5, function at a much lower pressure. Test what ever you buy don’t assume it’s set at posted number/pressure.