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ID Locators, LS1 Dual Spring 1.260" OD X .672 Step" x .507" Center Hole, .060" Base Thickness, 16 Pcs

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Calculated at checkout

Product Description

Use on OE type LS Series Heads with .499"/.500" Guides

Valve Spring ID Locators, .060" base thickness


LS Series Chevrolet / GM engines using dual springs.


These valve spring locators are manufactured using 4140 chrome moly steel bar stock then heat treated to resist wear.

This version has a .060" thick base which is the Std base thickness used for this application.

In our other listings, we also offer them with an .080" base thickness which is used to reduce installed heights by .020" over .060" base locators.

Choose whats best for your build.

This size is for OE and select aftermarket heads with .499"/.500” OD valve guides.

Some aftermarket LS series heads have .562" guides which require a different locator. If you have aftermarket heads, simply measure the guide OD to verify fitment.



  • LS series SB Chevrolet, using OE type heads w/ .499"/.500" Guides
  • GM 5.3, 5.7, 6.0 engines
  • Verify sizes before purchase



  • A- 1.260" Outside Diameter
  • B- .672” Centering Wall
  • C- .507" Center Hole Diameter
  • D- .225” Overall Height
  • E- .060” Base Thickness
  • See Diagram at top of page
  • Quantity Included in purchase- Sixteen Locators.


Also available with a .080" thick base which will reduce installed height .020" compared to standard .060" base locators. For the .080" base version, search our site for L-311E8



Alex’s Parts, the smart choice in valve train parts.