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 739-1 10 Degree Titanium Valve Spring Retainer 1.625" OD

Part of: COMP Cams Titanium Valve Spring Retainer OD

Other options in this family: COMP Cams 729-1 COMP Cams 721-1 COMP Cams 738-1 COMP Cams 736-1 COMP Cams 722-1

Manufacturer

Picture for manufacturer COMP Cams

Part Number

739-1
4 reviews
Sale Price

$41.95

3 left at this price

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 739-1 is a high-performance titanium valve spring retainer designed for serious engine builds requiring maximum valve train stability and reduced reciprocating weight. Engineered with a 10-degree lock angle, this retainer is specifically designed for use with 1.625" outside diameter triple valve springs.

Key Features:

  • Titanium construction offers exceptional strength-to-weight ratio for reduced valve train mass
  • 10-degree lock angle provides secure keeper retention and optimal valve train geometry
  • Designed for 1.625" OD triple valve springs
  • Precision-machined for consistent dimensions and reliable performance
  • Ideal for high-RPM racing applications where valve train control is critical

Titanium retainers are a proven upgrade for competition engines, allowing higher engine speeds while maintaining valve train stability. The reduced weight compared to steel retainers helps minimize valve float and allows more aggressive camshaft profiles. This retainer is compatible with COMP Cams valve springs and keeper systems designed for the 10-degree lock angle configuration.

Products specifications

Diameter 3

0.87

Diameter 1

1.5

Valve Spring Diameter

1.625

Compatible Lock

638-1

Valve Stem Size

All

Diameter 4

0.635

Diameter 2

1.18

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

Amazon pay is convenient

I ordered online with autoplicity via google checkout. It was easy and a real good price compared to other sites. The communication was great every step of the way. Order confirmation, order tracking number and shipping number. Super fast shipping for a heavy item (springs)and was in perfect condition. I Will shop with them again.

Hands down the best price on the Magnaflow catback I have seen by more than 20%. They were able to work out the ship-from-manufacturer tracking after a quick phone call. Will definately be recommending these guys to others.

awesome price and super fast shipping. I will use again. Thanks

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