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![Carburetor Power Valve Plug [Holley Carburetors, 1/2-28 Threaded, Includes Gasket]](https://www.jegs.com/images/mini_750/700/710/710-65408.jpg)
Vehicle Info NeededMOROSOPART NUMBER: 710-65408
Carburetor Power Valve Plug [Holley Carburetors, 1/2-28 Threaded, Includes Gasket]
$2299
Ships on 11/03/2026
Lowest Price Guarantee
Carburetor Power Valve PlugHolley Carburetors 1/2-28 Threaded Includes Gasket Sold as a Kit
A fitting that leaks or vibrates loose under track conditions turns a routine plumbing job into a DNF.
Moroso 65408 Carburetor Power Valve Plug Features:
- Blocks power valve fuel enrichment on Holley carburetors where it is not desired.
- Full throttle enrichment is instead achieved by jetting the carburetor up roughly 10 jet sizes.
- Includes a 1/2-28 threaded plug and gasket.
- Quantity: Sold as a Kit.
- For use with Holley carburetors. One Per Package.
Part TypePower Valve Block-Off Plug
Product LineMoroso Power Valves
BrandMOROSO
Package Height1.2
Package Width4.8
Package Length6.2
Weight0.1 PG
Part CategoryPerformance Parts
QuantitySold as a Kit
Thread Size1/2-28
Part FitmentSemi Universal
Vendor Part Number65408
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
