oily wrote:I modified Nick Graveley's NC35 heads a good while back.He gained an extra 3bhp from it if my memory serves me correctly.

how "modified" were they ?

I als got my hands dirty yesterday. A 600 head i'm using as a test piece:

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Still needs some work, but ran outta dremel thingy's. The intake ports looked good, so don't think tha't i'll be porting those. Still need to re-lap te valves.
The head has been skimmed. 0.25mm been removes.

Problem is that by the time this engine has been put together so much will have been changed that i can't say how much difference the porting made.

oops

oily wrote:I modified Nick Graveley's NC35 heads a good while back.He gained an extra 3bhp from it if my memory serves me correctly.

was that just porting and reseating darren or did you skim the heads etc ? was it a hrad enough job or is it best left to the professionals

to be honest guys i'm starting to whimp out of doing the porting myself and am considering sending them out to someone to do professionally,the vavle reseating i can do and have done but the porting ....na to much to fcuk up and i want the best for the heads and i don't think i could deliver that in my shed with a borrowed dremel.....

so who can anyone recommend and what is a general price for a set of nc30 heads ported ?

now thats thinking with you head rhory

sorry couldnt resist it, probably for the best tho, dont wat it going on you

royster81 wrote: so who can anyone recommend and what is a general price for a set of nc30 heads ported ?

http://dynopro-racing.co.uk/tuningvfr.html" onclick="window.open(this.href);return false;

contact mike at BMC racing on 01948667976,
he tuned leon jeacocks rvf, which won him the emra f400 championship, and his own rvf which got him 3rd in the championship.

royster81 wrote:to be honest guys i'm starting to whimp out of doing the porting myself and am considering sending them out to someone to do professionally,the vavle reseating i can do and have done but the porting ....na to much to fcuk up and i want the best for the heads and i don't think i could deliver that in my shed with a borrowed dremel.....

so who can anyone recommend and what is a general price for a set of nc30 heads ported ?

I don't know how close you are to Leyland in Lancs but this guy is oneof the best.

TONY SCOTT TUNING LTD
26 CANBERRA ROAD
LEYLAND
LANCS
PR25 3JH

TEL/FAX NO 01772 423614

or was.. not sure if he still is in work

What does it cost overthere?

Here for a simpel "light" porting job will set up back about 700 euros, and for a complete job about 1200euros.