Bill Smith
Founder, 1929-2014
Speedy Bill
Since 1952
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America's Oldest Speed Shop ®


Billet Style Aluminum Breathers Without PCV Valve

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Includes grommet.
Billet Style Aluminum Breathers Without PCV Valve

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Q & A

What's in the Box

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

You may also be interested in:

Valve Cover Studs, Set of 8
(Part #91003780)
                        1/4"-20 thread, 1-1/2" long studs come with nylocks and washers. Set of 8 are included.
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).

T-Style Wing Nut
(Part #5501394)

Premium chrome plating and classic styling make this hold down the first choice of rodders everywhere! Threads are extra-long to accomodate nearly any combination of valve cover, clamps and gasket thickness. Just cut off to length you need.  Sold individually.

Wing nut has 1/4" coarse threads.

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 Breather With PCV Valve
(Part #91011034)
                        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.


Billet Specialties 23120 1-1/4 Inch Push On Oil Filler Cap, Polished
(Part #91023120)

It’s the details that make your motor stand out. Billet Specialties engine accessories finish your motor with high tech style and top quality materials. Precision machined from 6061-T6 billet aluminum and polished to a mirror finish, our engine accessories will take your motor to the next level.

Available in push-on style.