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ID Locators, LS1 Dual Spring 1.260" OD X .672 Step" x .507" Center Hole, .080" 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, .080" 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.

We made these with a .080" base thickness. This was done to achieve .020" less installed height over common .060" base locators. Those interested in reducing their installed height by .020" find these very useful.

A good solution for heads which have too much installed height.

We also carry them in a .060" version- check our other listings.

This size is for OE and select aftermarket heads with a .500” outside diameter valve guide.

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 heads w/ .499"/.500" OD Guides
  • GM 5.3, 5.7, 6.0 and other LS series engines
  • Verify sizes before purchase



  • A- 1.260" Outside Diameter
  • B- .672” Centering Wall
  • C- .507" Center Hole Diameter
  • D- .225” Overall Height
  • E- .080” Base Thickness
  • See Diagram at top of page
  • Quantity Included in purchase- Sixteen Locators.


Also available with a .060" thick base. For the .060" base version, search our site for L-311E6



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