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EC 3/4-16 Billet PCV Valve
281 EC Billet PCV Valve 3/4"-16 fits Burris Sidecover
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EC 3/4-16 Billet PCV Valve

Part Number: 281
Online Price: $24.95
Phone Order Price:$24.99
You Save:$0.04(0%)
EC Billet PCV Valve 3/4"-16 – One-Way Crankcase Vent for Flathead Briggs
Availability: In Stock.

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Description

EC Billet PCV Valve – 3/4"-16 Thread for Burris Side Cover on Briggs Flathead Engines


Designed specifically for performance flathead Briggs & Stratton engines using the Burris billet side cover, the EC Billet PCV Valve (Part #281) is engineered to properly manage crankcase pressure under racing conditions.


Key Features:

  • Precision Billet Aluminum Construction:
    Built from durable aluminum, this upgraded version eliminates the plastic check valve, making it far more resistant to fuel breakdown—especially with methanol use.
  • True One-Way Pressure Control:
    Unlike standard open fittings or brass vents, this PCV valve features an integrated one-way check valve, ensuring gases are only vented out of the crankcase. This prevents air and contaminants from being sucked back in during vacuum pulses, maintaining consistent internal pressure.
  • Improved Crankcase Control for Built Engines:
    On modified or high-RPM engines, simply "venting" crankcase pressure isn’t enough—controlling it is crucial. The EC PCV Valve helps reduce blow-by effects, stabilize oil control, and promote better ring seal under load.

Fitment:

  • Thread Size: 3/4"-16
  • Direct Fit for: Burris Billet Side Covers (Flathead Briggs)
  • Recommended For: Racing Briggs flatheads, especially those running methanol or requiring fine crankcase pressure management


Why Use a Real PCV Valve?

Many builders mistakenly install a vent fitting without a check valve—causing air to cycle in and out of the crankcase. This disrupts crankcase pressure regulation and can reduce engine efficiency. Our PCV valve prevents that by ensuring one-way evacuation of gases only.


For technical diagrams and crankcase pressure theory, visit our tech resource page:

Crankcase Venting & PCV System Explained »

FAQ

Q1: What does the EC Billet PCV Valve do?
A1: It manages crankcase pressure by allowing gases to vent outward only, using an integrated check valve. This prevents vacuum pulses from drawing air back into the crankcase, ensuring cleaner lubrication and more consistent engine pressure.


Q2: Why not use a brass or aluminum fitting without a check valve?
A2: Unchecked fittings allow air to flow back into the crankcase during vacuum cycles, defeating the purpose of a vent. The EC PCV Valve’s one-way design eliminates this issue, maintaining stable pressure at all times.


Q3: Can I use this valve with methanol-fueled engines?
A3: Yes. Made from all-aluminum construction, it's designed to resist degradation when used with methanol and other alcohol-based fuels. No plastic components mean greater longevity and fuel compatibility.


Q4: What engine setups is this valve compatible with?
A4: It's designed for Burris billet side covers on performance Flathead Briggs engines. The valve uses a standard 3/4"-16 thread. Ideal for racers and builders running tuned or methanol-powered engines.


Q5: Do I need a catch can or vent hose with this PCV valve?
A5: While the valve alone controls crankcase pressure, a catch can is recommended to trap oil and reduce vapor release. Ensure ventilation tubing is routed properly without kinks.

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