Valve sizes?

[number1]

Does anyone knoe What are the inlet and exhaust valve sizes for the following??

16v head
williams head
megane head

Cheers
Dave

[MAXIBOY]

Does anyone knoe What are the inlet and exhaust valve sizes for the following??

16v head 30 inlet 28.5 exhaust
williams head 33 28.5
megane head 33 28.5

Cheers
Dave

[Justin..]

thought the meg had bigger valves than a willy?

[number1]

Yeh that was the assumption i was under

dave

[MAXIBOY]

not sure now you say that. exhaust are identical and i just fitted 33mm megane valves to my 1.8 head. thought willy,s were the same just megane has smaller ports

[number1]

measured my inlet valves on my gasflowed head earlier with verniers and they are 31mm exactly....

[MAXIBOY]

right i,m confused now. maybe the 1.8,s are 31mm standard and the others are 33mm then

[number1]

vernier calipers not vernier pulleys lol, just wondering im measuring the diameter of the valve, maybe i should measure the inner edge of the seat??

[MAXIBOY]

no thats right valve head diameter

[number1]

31mm for sure then, i presume thats 16v size, just wondered what williams ones were as megane ones are supposed to be bigger again..

Dave