Add Alternate Piston
#27795 from Club Racing Board · Rule change · TB 19-12 (2019-12 Fastrack)
In FC, GCR section 9.1.1.B.16.b, change as follows:
"Only original Ford, or Sealed Power #H872cp, or United Engine and Machine #SO2763, or Mahle
#930169439 pistons may be used."