Honda Grom/MSX 125 SuperHead, 24.0mm Port.
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FinBro upgraded stiffer valve springs, hand port and polished intake and exhaust runners, NEW larger intake and exhaust valves for increased airflow. Compatible with ANY aftermarket cam BUT best when paired together with the FinBro hi-lift hi-duration cam for the 125cc. Specifically made for the NEW 125cc SuperStock Race or Street setup. Can also be used with ANY other BBK jug and piston combination to help allow engine to breath better and open the potential of the increased cc size.
Includes NEW head and exhaust gaskets.
NO "shimming" required for testing different aftermarket or OEM cams.
OEM Valve size: 25.5mm intake/ 20.95mm exhaust
NEW FinBro SuperHead size: 27mm intake/ 23mm exhaust