10/15/2026
The TK-1813
1.800 Installed Height
1.310 Lower OD700” Lift capable
Ultra lightweight, VERY high rate!
This little spring packs a BIG punch offering more spring rate than any other spring in its class…even more than the dual spring kits out there!
That means you can have lower seat loads and achieve higher rpm stability without all the stress commonly associated with high lift and high rpm valve-trains!
The Conical shape and flat Ovate wire offer an unmatched combination of performance and reliability for street, Drag n Drive or Drag race engines looking to step up their performance without adding tons of spring loads to their system!
Get yours at www.10k-technology.com Today!