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23603-16 Manley Performance Valve Spring Kits

Name: Manley Performance 23603-16 Valve Spring Kits
Brand: Manley Performance
SKU: 23603-16
Price: 335.81 USD
Availability: InStock

Manley Performance Valve Spring Kits 23603-16

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Product: Manley Performance Valve Spring Kits

Category: Manley Performance Valve Springs, Retainers

Part Number: 23603-16

UPC: 807298071633

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$335.81

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New with manufacturer warranty

Availability: IN STOCK (5+)
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(Last checked: 06/27/2026)
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Description:

NOTES: Manley LT4 INT/EXH Spring Retainer 1.340 7 Deg

Use Manley 13098 or OE Chevrolet LT4 Valve Locks - Height: +.105 in. - Valve Stem Diameter: 8mm - Weight: 11.0 grams. Manley Spring Retainer, RET-TI 1.340 7 DEG LT4 INT/EXH.

Manley Valve Spring Retainers are engineered using finite element analysis and CNC machined to exacting tolerances to deliver unmatched strength and performance. These retainers reduce valvetrain mass, improve RPM potential, and ensure superior valve control in the most demanding racing applications.

Features:

Special 6AL-4V titanium for maximum strengthCAD designed for ultimate reduction in mass without sacrificing strengthMust use 7? valve locksMust use Manley P/N 13098 or factory Chevrolet LT4 valve locksSames as 23611 except +.055" installed height

Fitment:

Years	Make	Model	Trim
Sorry we do not have fitment information available for this part number. Contact us for any fitment questions.

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For more information on Manley Performance part number 23603-16, you can visit the official Manley Performance website.