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Manley Titanium Valve Spring Retainers 23665-16 Retainers, Titanium, 10 Degree, 1.625 in. Outside Diameter, .645 in. Inside Diameter, Set of 16

SKU: MAN23665-16

Valve Spring Retainers

Manley Titanium Valve Spring Retainers 23665-16 Retainers, Titanium, 10 Degree, 1.625 in. Outside Diameter, .645 in. Inside Diameter, Set of 16

SKU: MAN23665-16

Valve Spring Retainers
A$679.79
Available from MFR. This item is available from the manufacturer's distribution centre. The dispatch timeframe shown is an estimate based on historical order processing and release times for this part. This item is not held in our own warehouse, and actual dispatch timing may vary depending on manufacturer workload and logistics at the time of ordering.
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Description

Upgrade your valve train with Manley Performance Titanium Retainers and other lightweight titanium options designed specifically for high-revving engines. Machined from aerospace-grade heat-treated 6AL-4V titanium, these retainers dramatically reduce valvetrain mass for quicker rev-up, improved valve control and enhanced overall responsiveness. The reduced weight helps your engine hold spring pressure at high RPM, minimizing float and unlocking more performance potential in race or aggressive street applications. Lightweight, strong, and precision-built for serious performance.

Part Type

Engine Valve Spring Retainer Set

Data: v4.2 - Upd: 2026-10-14 10:09:47

Features

  • CNC machined to exacting tolerances
  • Excellent value for all forms of racing
  • Special 6AL-4V titanium for maximum strength
  • Squeeze more RPMs out of your engine

Specifications

Product Attributes - Brand
Manley
Product Attributes - Manufacturer's Part Number
23665-16
Product Attributes - Part Type
Valve Spring Retainers
Product Attributes - Product Line
Manley Titanium Valve Spring Retainers
Product Attributes - UPC
807298038209
Product Attributes - Outside Diameter of Outer Spring (in.)
1.625 in.
Product Attributes - Retainer Material
Titanium
Product Attributes - Lock Style
10 degree
Product Attributes - Valve Spring Style
Standard
Product Attributes - Retainer Style
Tall
Product Attributes - Number of Springs Per Valve
Triple
Product Attributes - Outside Diameter of Middle Spring (in.)
1.185 in.
Product Attributes - Inside Diameter of Inner Spring (in.)
0.645 in.
Product Attributes - Locks Included
No
Product Attributes - Quantity
Sold as a set of 16.
Product Attributes - Notes
Adds 0.100 in. to installed height.

Reference Information

Brand Name/s Manley Performance
StreetFX SKU man23665-16
SFX Item ID 4929581
Supplier Item Code 4929581
Manufacturer SKU 23665-16
Manufacturer UPC 807298038209

Compatibility

Application Data
  • Valve Spring QuantityTriple
    Application NotesFits spring number KMO-K-1400. Plus .100 in. height.

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