Large valves for "EG" Heron Head Post Posted 27 March 2025, 6:37 PM #1678911 (In Topic #244953) TT Collin Newbie Larger valves Hello,Looking for larger valves for the Heron head.40mm or 41mm Intakes34mm or 35mm Exhaust7mm or 8mm stemsI am building 1870cc engineTake careCollin 0 guests and 0 members have just viewed this: None. Forum home New Technical / Non-Technical Guides