Exhaust valve has a long collet groove and head diameter of 1-1/16" or 1.062" and is the only oversize readily available for small engines.
Quality valve, suitable for ULP, and all road applications.
You can use this valve to replace the shorter radius groove collet ones found on late heads if you use earlier collets as well.
We now have another exhaust valve for use with higher lift cams and performance and race applications.
