design · 1.94 x 1.50 stainless steel valves · 3/8 screw in stud combustion ... in 64cc combustion chambers 220cc intake runners straight or angle plug design 2 ... .055 x 1.60 stainless steel valve description wp 1415b 64cc chamber ... plug design 2.02 x 1.60 stainless steel valves 3/8 screw in stud description .600 ... 383 c.i.d part description eq cc200aa 50cc combustion chamber angle plug $639. ... description bare castings eq cc220aa 50cc combustion chamber angle plug $639. ... · available in 64cc and 72cc · 200cc intake runners · straight or angle plug design ... · 2.02 x 1.60 stainless steel valve combustion chambers starting at 699.98 ... $1019.98pr · legal for use in · 1.94 intake 1.5 exhaust imca sportmod and hobby ... stock divisions 76cc chambers 167cc intake runners description · available bare or ...