My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

COMP Cams 728-16 10 Degree Titanium Retainer Set Of 16 For 1.250" Od Single Spring

Part of: COMP Cams 10 Degree Titanium Retainer

Other options in this family: COMP Cams 738-16 COMP Cams 736-16 COMP Cams 739-16 COMP Cams 733-16 COMP Cams 732-16

Manufacturer

Picture for manufacturer COMP Cams

Part Number

728-16
4 reviews
Sale Price

$428.95

In Stock (10+)

delivery box

Usually delivered within 2 days

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The COMP Cams 728-16 titanium valve spring retainer set delivers premium performance for high-RPM racing engines. These precision-machined retainers feature a 10-degree locking angle design and are engineered specifically for 1.250" outer diameter single valve springs.

Key Features:

  • Titanium construction reduces reciprocating weight for improved valve train control at high RPM
  • 10-degree locking angle provides secure keeper engagement and prevents valve lock failure
  • Designed for 1.250" outer diameter single valve springs
  • Set includes 16 retainers for complete 8-cylinder engine valve train builds
  • Precision CNC-machined for exact dimensional tolerances and consistent performance
  • Superior strength-to-weight ratio compared to steel retainers

These titanium retainers are ideal for competitive racing applications where reducing valve train weight is critical for maximizing RPM capability and preventing valve float. The lightweight design allows for more aggressive cam profiles and higher redlines while maintaining valve train stability.

Products specifications

Diameter 3

0.735

Diameter 1

1.24

Valve Spring Diameter

1.25

Compatible Lock

638-16

Valve Stem Size

All

Diameter 2

0.87

AMAZON ASIN

B001O0BYC8

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.

Lock Angle

10

Retainer Material

Titanium

I ordered a set of inner tie rods for my car from Autoplicity and found their prices to be the lowest online for the brand I was looking for. Items were ship out in 2 business days from the original manufacturer. Shipping prices were kind of on the expensive end considering the package size and weight so if Autoplicity adjust their shipping prices to be more competitive, I think their service and pricing would be hard to beat!

Wow talk about FAST shipping...I placed the order...and the door bell rang for delivery!!! The electronic points and coil when in the FJ 4o in just a few minutes and work perfectly...THANKS so much! Larry in Montana

Went smoothly

Great pricing and quick shipping. I'll be using them again for sure.

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy