Amazon.com: LS LT Valve Lock Keepers 8MM 7 Degree Single Groove Set of 32 Compatible with all 1997-Current LS/LT Series V8 Engines LS1 LS3 LS2 LT1 LS6 LQ9 4.8L 5.3L 5.7L 6.0L
Lunati 7 Degree Single Groove Valve Locks For GM LS1 Valve Stem Diameter: 8mm | eBay
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Amazon.com: LS LT Valve Lock Keepers 8MM 7 Degree Single Groove Set of 32 Compatible with all 1997-Current LS/LT Series V8 Engines LS1 LS3 LS2 LT1 LS6 LQ9 4.8L 5.3L 5.7L 6.0L