Cylinder Head Thread Chase in M11 x 2.0 thread for all LS style engines.
These are hard to find!
Works with LS1, LS2, LS7, LQ9, LQ4 etc.
Removing or swapping the cylinder heads on your LS project? Chances are, you'll need this item.
Since the LS engine uses an unusual metric thread, you can't find these from standard manufacturers.
Made in USA!