This is a nice used set of Titanium Valve Locks from Roush Racing. These are standard 7 degree locks that were custom made for one of Roush Racing’s engine programs. Titanium locks sell for around $92 for a 8 pairs. Here you can buy them for less. If you want the best for your engine, this is your chance to pick up a really nice set of titanium locks at a fraction of the price. This is a great way to adapt those used NASCAR valves to your head without changing your stock type retainers. These can be used with steel or titanium valve retainers.

Here are the specs for these Valve Locks:

Consider the following benefits of titanium locks:
◊ Lighter Weight - save approximately 4-5 grams per pair
◊ Superior Valve Stem Fit - precise .0007" interference fit and titanium alloy’s high coefficient of friction result in NO relative motion- hence, no galling or wear of valve stem
◊ No Valve Tip Stress - special design “locks” the valve stem in the proper location – below the groove
◊ Longer Life - superior fit results in less wear and extended service life
◊ 100% CNC-Machined - unparalleled surface finish and tolerances
◊ Compatible with titanium and steel valves and retainers