Bill Smith
Founder, 1929-2014
Speedy Bill
Since 1952
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Billet Style Aluminum Breather With PCV Valve

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Includes grommet. Use with 3/8" I.D. rubber hose
Billet Style Aluminum Breather With PCV Valve

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Q & A

What's in the Box

Polished aluminum breathers come with rubber grommets for 1.250" hole.

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Ball Milled Billet Aluminum Oval Air Cleaner, 12 Inch
(Part #91011030)

Theses highly polished aluminum air cleaners have the look of billet without the expense. This 12" Ball-Milled Air Cleaner is cast aluminum, approximately 1/4" thick, polished, and the grooves you see are actually ball-milled. Even the base is 1/4" cast aluminum and polished. Fits carburetors with 5-1/8" air horns.  Measures 12" long x 8-3/8" wide x 3" high.

  • Ball-Milled Air Cleaner
  • Highly polished cast aluminum
  • Fits carburetors with 5-1/8" air horns
  • 1/4" thick
  • 12" long x 8-3/8" wide x 3" high
Weld or Bolt-On Fill Cap
(Part #91011036)

Billet aluminum cap and base. Weld or screw to your valve cover, oil tank or rear end. Knurled cap with O-ring seal.

  • 1-1/4" inside diameter
  • 1-1/4"-12 thread pitch

Note: If using this fill cap in a bolt-on manner, (3) #4 screws/bolts with a countersunk head are required (not included).  Bolt hole size is 1/8".

Finned Valve Cover Breathers
(Part #91017116)
                        Nostalgic finned valve cover breather. Use with grommet 550-6375 to fit a 1-1/4" I.D. hole (typical aftermarket valve cover).
Finned Valve Cover Breathers with PCV
(Part #91017118)

Nostalgic finned valve cover breather with built in PCV insert. Use with grommet 550-6375 to fit inside a 1-1/4" I.D. hole (typical aftermarket valve cover).

Garage Sale - Total Performance Aluminum Valve Cover Breather, PCV
(Part #7153051)

Billet aluminum valve cover breathers from Total Performance. Includes the grommet. 


This is garage sale priced because it has been discontinued.



OTB Gear 6801 Finned Valve Cover Breather, 3 Inch Diameter, 1 Inch Neck
(Part #9106801)

This finned valve cover breather is a classy addition to your engine. Constructed from aircraft grade A356 aluminum, it is polished to meet show quality standards.

  • 3" in diameter with a 1" neck
  • Fits into grommet with 1" hole
  • High quality polished aluminum construction
  • Made in USA


Billet Style Aluminum Breathers Without PCV Valve
(Part #91011033)
                        Polished aluminum breathers come with rubber grommets for 1.250" hole.
Billet Valve Cover O-Ring Oil Fill
(Part #91017134)
                        This is a handy little item. Basically, it's a bolt-in breather opening for a valve cover that can be used to install a breather cap, an oil fill cap, or a breather with a PCV valve. 

To install this item, you must make a 1-7/16" hole in the valve cover. You may want to purchase 91011033, our billet breather and/or 91011034, our billet PCV valve.
Push-In Style Oil Breather Caps
(Part #5502068)

Each chrome push-in style oil breather cap fits factory and after market valve covers with a 1-1/4" diameter hole, with rubber grommet.