Use Manley 13091 Valve Locks (LT-1/LT-4/L-98 - Gen I/II SBC) - Height: +.050 in. - Valve Stem Diameter: 11/32 in. - Weight: 10.0 grams
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.
  • Special 6AL-4V titanium for maximum strength
  • CAD designed for ultimate reduction in mass without sacrificing strength
  • Must use 7 valve locks
  • Use Manley P/N 13098 (recommended) or factory Chevrolet LT valve locks
  • Sames as 23623 but +.055" more installed height
  • Sames as 23628 dimensionally except made of Titanium

Information:

For Chevrolet LT1 / LT4 / L98 and must use Manley P/N 13091
Attributes
California Proposition 65 WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Category Hierarchy Valve Springs & Kits, Valvetrain Components>Spring Retainers>Titanium
Country of Origin (Primary) US
EBAY Category ID 262140
Emission Code Off Road
Engine LT1, LT1
Engine - Web LT1
Engine Type ICE, ICE
First Step Diameter 1.155, 1.155
Hazardous Material Code N
Height 0.050, +.050
Industry Automotive, Automotive
Life Cycle Status Code Available to Order
Make Chevrolet, Chevrolet
Make - Web Chevrolet
Out of Stock Message Call for Availability, Call for Availability
Product Market Domestic, Domestic
Product Type Engine Valve Spring Retainer Set, Engine Valve Spring Retainer Set
Quantity 16, 16
SDR Required Flag N
Second Step Diameter 0.950, 0.950
Stem Diameter 11/32, 11/32
Third Step Diameter 0.675, 0.675
Title - Web Manley Spring Retainer, RET-TI 1.290 7 DEG +.050 LT1, Manley Titanium 7 Degree Valve Spring Retainer - Use with Manley Spring 221436
Valve Lock Angle 7, 7
Valve Lock Degree 7
Valve Spring Manley 221436, Manley 221436
Valve Spring Outer Diameter 1.295, 1.295
Valve Spring Retainer Material 6AL-4V Titanium, 6AL-4V Titanium
Valve Spring Retainer Quantity 16, 16
Valve Spring Retainer Series 7 Degree Titanium, 7 Degree Titanium
Valve Stem Diameter 11/32, 11/32
Warranty Time 30
Weight 10, 10
GTIN 00807298024592