Slick GS-R

iTrader: (2)

my head is going to the machine shop next week and was wondering what the best type of headwork to be done would be? What sort of porting & polishing, valvejobs and whatnot?

Thanks in advance,
Anthony

kidkutz

you may want to consider oversizing your exhaust valves

Slick GS-R

iTrader: (2)

i am getting crower dual valvesprings, crower titanium retainers and ferrea stainless steel valves (.5 mm oversized on exhaust, stock on intake) already.............what should i get for headwork (machined)

c'mon guys please help me out

ion_four

I know that a little goes a long way sometimes, but is .5mm going to make much of a difference?

kidkutz

well the machine shop generally knows what's best.
tell them your setup and they should be able to work it accordingly. since your turbocharged they'll probably work it more so the exhaust side flows better.

Pinhead

I got another question for this thread. If a head has been P&P from portflow but it was too All Motor specs will it still be ok for a big turbo setup?

Smashback

There's lots of guys running big turbo setups on stock heads, so I don't see why not. I would mostly worry about how much they milled it (if they did).

Drag R

Definately consider sending ur head to Portflow.