GSC Power-Division Exhaust Valve Guides Shorty Stopper Style

The GSC Power-Division valve guides are made from true C67410 Manganese Bronze and turned on a dedicated precision CNC turning center. What this means for you and your installer is less time fitting guides to the head due to holding the tightest tolerances in the industry with the best quality control possible.

The stopper style is simply what it says. It has a stop integrated into it so that it wont get pushed in to far. Most machine shops have to drive and check multiple times to get the proper protrusion, these have it built in.

The Shorty Stopper is a shorter Exhaust Guide. 1.8" long vs. 1.95" for the Exhaust 4G63 Guide. Most ported heads will want to run the shorter style due to air flow and the removal of material in the port.