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EC 5.5mm Billet Aluminum Retainers for Single Springs
EC Billet Aluminum Retainers and Locks for 5.5mm Valve Stems
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EC 5.5mm Billet Aluminum Retainers for Single Springs

Part Number: 266-55
Online Price: $20.00
EC Billet Aluminum Retainers – 5.5mm Valve Stems | High-RPM Valvetrain Upgrade
Availability: In Stock.

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Description

EC Billet Aluminum Retainers – For 5.5mm Valve Stems


Upgrade your valvetrain with EC Billet Aluminum Retainers, precision-engineered for high-RPM small engine applications. Built from lightweight, high-strength aluminum, these retainers significantly reduce valvetrain mass, improving valve control, stability, and overall engine reliability under racing conditions.


Each retainer is hard anodized for superior wear resistance, heat tolerance, and chemical protection—finished in a bold red for that race-ready look when the valve cover comes off.


Key Features & Benefits:

  • Ultra-lightweight billet design reduces reciprocating mass for higher RPM capability
  • Hard anodized coating enhances durability, wear resistance, and chemical resilience
  • Race-inspired aesthetics with bright red finish
  • Precision fit for improved valvetrain stability and camshaft performance
  • Ideal for single valve spring setups—22lb and 26lb springs


Compatibility & Fitment:

These billet retainers are designed for engines using 5.5mm valve stems, commonly found in:

  • Honda GX200
  • Predator 212 Hemi
  • Predator 224 Non-Hemi
  • Clone 196
  • Tillotson 196
  • Ducar 196
  • Most other GX200-style Honda-clone engines

Note: Not compatible with dual valve springs. Designed for use with stock, 22lb, and 26lb single valve springs only. May require stainless steel valves or split-style keepers/locks.


What’s Included:

  • (2) EC Billet Aluminum Retainers
  • (2) 5.5mm Split Locks Sets

FAQ

Q1: Will these retainers fit my Predator 212 Hemi engine?
A: Yes, these retainers are a direct fit for the Predator 212 Hemi, which uses 5.5mm valve stems.


Q2: Are these compatible with dual valve springs?
A: No, these retainers are only designed for single valve spring setups, including stock, 22lb, and 26lb springs.


Q3: What kind of performance gains can I expect?
A: These retainers reduce valvetrain weight, which allows your engine to rev higher with improved valve control, especially in builds with aftermarket camshafts.


Q4: Do these retainers work with stainless steel valves?
A: Yes, but they may require split-style valve locks (keepers). Be sure to confirm compatibility before installation.


Q5: Are these retainers included with springs and keepers?
A: This listing includes only the retainers. Matching springs and keepers may be purchased separately unless specified otherwise in the kit.


Q6: What's the material and finish of the retainers?
A: They're made from high-strength billet aluminum with a red hard anodized finish for durability and corrosion resistance.


Q7: Which engines are these compatible with?
A: These fit engines with 5.5mm valve stems including Honda GX200, Clone 196, Tillotson 196, Predator 212 Hemi, Predator 224 Non-Hemi, and Ducar 196.

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