Manley LT4 INT/EXH Spring Retainer 1.340 7 Deg

SKU: MAN23603-16

Valve Spring Retainers

MAN Valve Spring Kits...

Manley LT4 INT/EXH Spring Retainer 1.340 7 Deg

Manley Performance

Manley LT4 INT/EXH Spring Retainer 1.340 7 Deg

SKU: MAN23603-16

Valve Spring Retainers

MAN Valve Spring Kits...

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: 2026-10-13 17:06:29

Features

CAD designed for ultimate reduction in mass without sacrificing strength
Must use 7 valve locks
Sames as 23611 except +.055" installed height
Special 6AL-4V titanium for maximum strength
Use Manley P/N 13098 or factory Chevrolet LT4 valve locks

Specifications

Product Attributes - Brand: Manley
Product Attributes - Manufacturer's Part Number: 23603-16
Product Attributes - Part Type: Valve Spring Retainers
Product Attributes - UPC: 807298110615

Reference Information

Brand Name/s	Manley Performance
StreetFX SKU	man23603-16
SFX Item ID	4061750
Supplier Item Code	4061750
Manufacturer SKU	23603-16
Manufacturer UPC	807298071633
Alternative References	LT4