+1mm larger valves for better intake/exhaust flow. These are sold in sets of 8- either intake or exhaust and these work with OEM triple groove keepers.

BC valves are one piece design with a friction welded Stellite tip for the best possible performance. Every valve is made from premium grade, heat resistant stainless steel material to insure reliability with high boost and/or high rpm applications. The undercut stem above the head area not only reduces overall weight for extended rpm potential, but also significantly improves air/fuel flow in and out of the combustion chamber. Every valve is fully machined and features a swirl polished finish under the head.

Valve Specs:

-Exhaust: 29.5MM
-Intake: 36MM

The pricing shown is for a set of 8 valves, sorry these cannot be bought individually.