ported cylinder head

[Blue_2.2]

will do,
I will get some pics of it as well.

Vocky......

Have you considered raising the compression ratio?
Especially with differant cams fitted, won't they alter the dynamic compression ratio (compared to static) because of the valves being open for longer?

 

[vocky]

I always consider 'cost vrs power' gains and compression ratios are expensive considering the minor gains

I would not consider a thicker gasket as that changes the timing slightly

 

[Blue_2.2]

Done a bit of hunting on the next and come up with this so far:

http://cgi.ebay.com/ebaymotors/FERREA-S ... ingPayment

$315/£150 ish ......... glad the exchange rate is heavily in our favour!

Ferrea + 1 mm valves

Inlet F1964P
Exhaust F1962P

Did you grind out your own head to fit the valves, what was it like to do?

 

[vocky]

I was quoted £25 per valve for a machine shop to fit the valves

that's £400+vat

so I found my old set of valve seat cutters and spent hours cutting the valve seats bigger, the kit was for leaded valve seats (which are softer) so by the time I was finished it was terminal

my advice is get the standard size head, but Swirled/Waisted stem, the power difference betwen +1 and standard won't be much notsure.gif

the difference between a standard valve and the S/W valve is HUGE