Katech Extreme Duty H13 Tool Steel Valve Spring Replacement Retainer

Katech Extreme Duty H13 Tool Steel Valve Spring Replacement Retainer

Hardened Tool Steel Wear Resistance for Demanding Valvetrain Applications.

The Katech Extreme Duty H13 Tool Steel Valve Spring Replacement Retainer is designed for PSI-LS1511 and PSI-LS1516 valve springs. It provides increased long-term wear resistance compared with titanium retainers in evaluated Katech camshaft packages, addressing wear where steel springs contact the retainer.

Features & Benefits

• Hardened H13 Tool Steel Construction
• Increased Spring-Contact Wear Resistance in Evaluated Katech Packages
• Developed for Demanding Racing Conditions
• Available Individually for Valvetrain Service
• Proudly Engineered and Manufactured by Katech Engineering in Clinton Township, Michigan, USA

Technical Specifications

• Product Type: Replacement Valve Spring Retainer
• Material: Hardened H13 Tool Steel
• Compatible Valve Springs: PSI-LS1511 and PSI-LS1516

What's Included

• One Replacement Retainer — Sold Individually

Valve springs and valve locks are not included.

Retainer Weight Comparison

• Referenced OEM Retainer: 11.4 Grams
• Referenced Katech Titanium Retainer: 5.0 Grams
• Katech H13 Tool Steel Retainer: 9.1 Grams

Select retainer material based on both weight and the wear requirements of the complete valvetrain.

Development & Validation

Katech developed the design on its Spintron valvetrain dynamics test cell. Stability was validated up to 8,100 RPM in tested combinations, and durability was evaluated using Katech's 24 Hours of Daytona course simulation.

These results apply to the evaluated packages. The appropriate engine operating range depends on the complete camshaft, valve, spring, lifter, pushrod, and rocker combination.

Fitment & Installation Notes

Confirm that the replacement matches the existing valvetrain package, including valve stem dimensions and valve lock compatibility.

• Inspect Springs and Locks for Wear or Damage
• Check Spring Installed Height and Spring Pressures
• Verify Coil Bind Clearance at Maximum Valve Lift
• Check Retainer-to-Seal and Retainer-to-Guide Clearance
• Follow Appropriate Valvetrain Inspection and Service Intervals

Why Choose Katech

Katech combines component engineering and manufacturing with in-house valvetrain testing. That process evaluates how the retainer performs within a matched engine package and supports informed component selection for demanding applications.

For replacement selection and valvetrain compatibility questions, contact Katech Technical Sales at 586-791-4120.