The Allstar Performance Umbrella Valve Seals 11/32in 16pk (ALL90235) use a high quality umbrella style seal that moves with the valve and deflects oil away from the valve guide area.
The seals have a .750 inch outer diameter to fit under most stock or larger diameter valve springs and a .580 inch inner diameter to clear valve guides on most engines, including small block Chevy applications. No machining is required for installation. Each package contains a set of 16 seals. A 100-pack option (ALL90235-100) is also available.
Spec Sheet: Allstar Performance Umbrella Valve Seal Spec Sheet (PDF)
FAQ
What size valve stem do the ALL90235 seals fit?
These umbrella style seals are sized for an 11/32 inch valve stem with a .580 inch guide inner diameter, commonly used on small block Chevy engines.
Is machining required to install these seals?
No, these umbrella style seals require no machining for installation.
How does an umbrella valve seal work?
An umbrella style seal moves with the valve and deflects oil away from the valve guide area rather than sealing directly against the guide.
How many seals are included in a package?
Each package contains a set of 16 seals. A 100-pack option (ALL90235-100) is also available.

