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COMP Cams 503-16 Set Of Ptfe Valve Seals For Guide Size Valve Stem - 16 530 11/32

(Ford F-150 1975-95, Mustang 1964-95, F-250 1975-95, Bronco 1966-95, Thunderbird 1968-81, 1983-88, 1991-93, F-350 1975-95, Maverick 1971-77 + 272 more models)

Part of: COMP Cams Set Of Ptfe Valve Seals For Guide Size Valve Stem

Other options in this family: COMP Cams 505-16 COMP Cams 503-12 COMP Cams 512-16 COMP Cams 513-16 COMP Cams 510-16

Manufacturer

Picture for manufacturer COMP Cams

Part Number

503-16
12 reviews
Sale Price

$35.95

In Stock (10+)

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Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The COMP Cams 503-16 valve seal set delivers reliable valve train sealing for high-performance and racing applications. This set includes 16 premium PTFE (polytetrafluoroethylene) valve seals engineered to control oil consumption while withstanding extreme temperatures and pressures.

Key Specifications:

  • Valve guide size: .530" (0.530 inch outer diameter)
  • Valve stem size: 11/32" (0.344 inch)
  • Material: PTFE for superior heat resistance and durability
  • Quantity: 16 seals per set (sufficient for V8 engines)

Features and Benefits:

  • PTFE construction provides excellent oil control without excessive restriction
  • High-temperature resistant material maintains sealing integrity under racing conditions
  • Precision-molded design ensures consistent valve guide fit
  • Reduces oil consumption and prevents valve guide wear
  • Compatible with performance and stock valve train components

These valve seals are designed for engine builders and enthusiasts performing valve train rebuilds or upgrades. The PTFE material offers superior performance compared to standard Viton seals, making them ideal for street performance, racing, and high-RPM applications. Verify your valve guide and stem measurements before installation to ensure proper fitment.

Products specifications

Fits

Ford F-150 1975-95, Mustang 1964-95, F-250 1975-95, Bronco 1966-95, Thunderbird 1968-81, 1983-88, 1991-93, F-350 1975-95, Maverick 1971-77, Galaxie 500 1963-74, F-100 1975-83, F-250 Pickup 1972-95, Fairlane 1963-70, Ranchero 1963-79 + 267 more models

Valve Guide Outer Diameter

0.53

Seal Outer Diameter

0.63

Valve Stem Outer Diameter

11/32

Valve Seal Type

Positive Stop PTFE

AMAZON ASIN

B000CIUD02

Prop 65

WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov

C.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967?

Yes, but must meet tailpipe emission standards for year of vehicle.

C.A.R.B. Exempt for On-Road Vehicles?

Yes

C.A.R.B. Exempt for Racing and Off-Road Only Vehicles?

Yes, but must be a race/competition only vehicle.

C.A.R.B. Exemption Reason

No impact on pollution output of vehicle.

C.A.R.B. Exempt for California Certified Vehicles Manufactured Before 1965?

Yes, but must meet tailpipe emission standards for year of vehicle.

C.A.R.B. Exempt for Federally Certified Vehicles Manufactured Before 1967?

Yes, but must meet tailpipe emission standards for year of vehicle.

Quick and easy!!

Fair price , shipped and received in a timely manner Autoplicity was my source now it should be yours! Thanks

Great Seller!

Great website,easy to navigate ,fast service,had what i needed at a great price,Thank you

Easy navigation in the website & finding exactly what I need. Purchasing quick & easy too!

easy to use!

I received original factory parts and paid less than the bobo brand carquest, O'Reilly, autozone, and advanced auto sell. Being factory original everything simply unplugged and went Right back together! Very pleased!!! Not to mention I saved $200 on just the one item!! Yea I'll be a regular customer from now on thanks guys.

great prices great service will make a purchase again

This is the first time I ordered from Autoplicity. Very good experience overall. The prices are the best I can find anywhere online. It was shipped very quickly, and I received my item just in time before my trip. Thanks!

Pretty good

Easy ordering and when i did have a question they answered right away! best price on the product too!

I ordered some floor mats for a Prius. Autoplicity was very competitive in their pricing. Not only that, they shipped quickly and had great feedback during and after I ordered. I would purchase from them again!

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