Jesel 12 Point Head Bolt - 5/16-18 in Thread - 1-1/4 in Long - Black Oxide (Set of 8) MT100BK Most people believe that the

Most people believe that the tang inside a valve lock is what actually holds the valve spring retainer and spring in place while the engine is running

1986-1996 Oldsmobile 98

1987-1995 GMC P6000

11-1/2 in Long

Jesel 12 Point Head Bolt - 5/16-18 in Thread - 1-1/4 in Long - Black Oxide (Set of 8) MT100BK Most people believe that theProduct Description: Bolt 5 16 18 in Thread 1. 25 in Long 3 8 in 12 Point Head Nuts Included Chromoly Black Oxide Set of 8 Dan Jesel realized early on that the success and demand for his high end valvetrain components was in part dependent on huge valve lifts, unheard of spring pressures and rpm that most thought was impossible. So he started on a 10 year quest to perfect the roller lifter. After nearly nine years of R&D and endless testing, Dan