Set of 16 lifters in each box.

Thompson Motorsports lifters allow for greater ramp rates and more lift providing for more lift and duration.  They allow for higher valve spring rates for increased engine RPM and are rated for 7500RPM with proper valvetrain.

Lifter Specs:
body diameter .842"
lifter wheel diameter: .700"

Overall height and plunger height are the same as an LS7 lifter and can be used as an upgrade.

Recommended preload is 0.050" with a useable range from 0.030-0.070".

Check out our video on how to properly set up a Thompson Motorsports lifter.

https://www.youtube.com/watch?v=1U5opbKBoF0&t=169s