Can I see some pics of GN1's

[OhioC5]

Since the pics in the sticky are down can someone post up GN1's compared to factory heads? I'm trying to decide if I should buy the GN1's or just get my stockers ported. What about the "R" designation for GN1's. They seem to be the only head porter around huh? Does GN1 use larger valves ?

 

[turbo nasty]

I would look at it more of a et / hp goal vs port size and layout. Whats your goal?

 

[forcefed3.8's]

It all depends on your goals. There are alot of people that port heads. Having a set of heads with some bowl work will make the same power as a set of Champion irons well into the 10's for less money.
IMO, GN1's are for 9's and quicker, GN1R's are for 8's and quicker. I am running in the 8's with a set of small valve GN1's. Irons will go in the 9's.

 

[OhioC5]

Here's the plan
http://www.turbobuick.com/forums/threads/the-goal-the-car-the-plan-will-it-work.390878/