Used for extra reliability at high RPM in SR engines. These rocker arm stoppers hold the lash adjuster side of the rocker arm at a fixed clearance, preventing extra movement at high RPM. - Fits all RWD SR20DE and SR20DET configurations. Ie. S13 240sx/S14 240sx/S15 Silvia etc. - Laser Cut Mild Steel and Zinc coated What’s the advantage of rocker arm stoppers? Rocker arm stoppers hold the lash adjuster side of the rocker arm at a fixed clearance, preventing extra movement at high RPM. Will these rocker arm stoppers fit my car? Please refer to the confirmed vehicle list in the item description. We do not sell any items that aren’t listed on our website and if we haven’t confirmed fitment on your car, then we don’t know if it will fit or not. Please do not ask. What is the difference between these rocker arm stoppers and more expensive items like Tomei, Greddy, Nismo etc.? Tomei, Greddy and Nismo rocker arm stoppers are all laser cut mild steel and are zinc coated. The GKTECH rocker arm stoppers are also laser cut mild steel and are zinc coated. The only difference being is that the GKTECH items are made in Australia. Are rocker arm stoppers hard to install? Rocker arm stoppers are quite easy to install and shouldn’t take you any longer than around an hour from start to finish.
