Online-Support-btn

Home :: Valve Seals
Valvetrain
Ultimate Duty™ Valve Seals

The Best Seal Made, Period! Howards™ Premium PC type seals are made of a space age material which is tolerant to pump gas, alcohol, and nitromethane. Temperature tolerant to 350°. They are self-lubricating and offer controlled radial tension during changes in operating temperatures. Color Coded. Controls oil while lubricating the valve guide.

  • Space age DuPont® fluoropolymer material
  • Alcohol, Nitromethane tolerant
  • Controlled radial tension during changing temperatures
  • Self lubricated material to 350°
  • Design allows very small amount of oil for guide/stem lubrication
  • Color coded
  • Installs with fingers
  • Lifetime replacement warranty
1-Valve-Seals-Ultimate-Duty™-Valve-Seals-HRC Seals

93311 (Red) Seal

11/32” Stem x .500” Guide
ID Guide .494”
ID Valve .337”
Outer Diameter .630”
Overall Height .460”
Inside Height .340”
Guide Contact .120”

93311 Set of 16
93310-100 Pack of 100
93310-1000 Box of 1000
93316 (Orange) Seal

11/32” Stem x .531” Guide
ID Guide .524”
ID Valve .337”
Outer Diameter .630”
Overall Height .460”
Inside Height .340”
Guide Contact .120”

93316 Set of 16
93315-100 Pack of 100
93315-1000 Box of 1000
93321 (Blue) Seal

3/8” Stem x .531” Guide
ID Guide .524”
ID Valve .369”
Outer Diameter .630”
Overall Height .460”
Inside Height .340”
Guide Contact .120 

93321 Set of 16
93320-100 Pack of 100
93320-1000 Box of 1000 

Small O.D. Valve Seals

These high quality valve seals offer a small outside diameter for greater spring clearance. A must for triple springs. Fluoro elastomer hi-temp material. Rigid chimney, metal-clad. Sets of 16.

93370 11/32” x .500 (.550” O.D.) Set of 16
93375 11/32” x .531 (.575” O.D.) Set of 16
2-Valve-Seals-Small-O.D.-Valve-Seals-HRC 93370
Home :: Valve Seals


hrc logo


hrc logo_2

custom cam_logo
Copyright © 2013.
All Rights Reserved.




Upcoming Events
 
Join us!

Summit - Super Summit 
Summit County Fairgrounds
Tallmadge, Ohio
June 20 - 21, 2014

SEMA 2014
Las Vegas Convention Center
Las Vegas, Nevada
November 4 - 7, 2014


PRI 2014
Indiana Convention Center
Indianapolis IN
December 11 - 13,  2014





Featured Products
    • Max Certified Hydraulic Flat Tappet Cam & Lifter Sets w/ 5yr Warranty
    • HRC Extreme Billet Main Caps
    • Professional 2-Sided 14" Degree Wheels
    • Ultra Lite Billet Composite Fuel Pump Pushrods
    • Max Z.P.M™ Camshaft Break-In Lube & Oil Change Additive
    • "The Original" Direct Lube™ Extreme Duty Lifters 
    • Precision Dense Forged Connecting Rods
    • Tool Steel Mechanical Lifters
    • ProMax™ Stud Girdle Kits
    • Track Smart™ Nitro-Carbided Rocker Arms
    • Howards™ Billet Aluminum Rockers



Contact Us 
280 W. 35th Ave.
Oshkosh, WI 54902
T: (920)2335228
F: (920)2321572
Email: info@howardscams.com
Hours: M-F 8:00 - 5:00 CST

Social Media