URGENT: Valve diameters

[beavy69]

Hey, can anyone tell me the valve diameters of a 1.4SRi and 1.3SR?

[Stuart]

dont know the exact sizes but im lead to belive the 1.4sri valves are the same size as the 1.6 mpi ones.. which are bigger than the 1.3 ones

[Adam]

1.3 are 33 inlet, and 29 exhaust i think.

1.6 mpi are something like 35 inlet and 32 exhaust.

[beavy69]

Thanks guys its just am looking at a ported 1.3 head with 3mm bigger valves or a 1.4SRi

So I thinkl I'll go for the 1.3 as that will mean the valves are bigger and I wont have skim it.

what do you reckon I should go for?

7im.

[Ste L]

get and sri head, and get ported and bigger valves put in that, will be better than the 1.3 head then....

[beavy69]

is there such a thing as too much for a 1.3 block? lol

I lost the bid for the 1.3 head so probably good thing.

how much does a big valve n basic port cost anyway?

[Ste L]

get the sri then ;)

[Stuart]

to have 1.6 sized valves put into my 1.2 head it was about ?300 inc valves/cutting/3angling. the valves were "special" too since they have a 1.6 size head and a 1.2 length stem (upped the cost a bit)

[beavy69]

Did they do any porting with that for you Stu?

Who was that you got it done by?

[Stuart]

no porting, that was a further cost.. kinda makes a B+ head good value now dosent it ;)

it was somewhere in northampton that did the valve cutting. cant remember it was ages ago.

[beavy69]

B+ head?

[Adam]

Blydenstein B+ head pack.
?410

http://www.blydenstein.co.uk/