We have tested this head as you have seen in the past and we are offering a promotional pricing in effect until the end of 2008.

First the Power Gains:

58WHP and 30WTQ on a stock blower with intake and exhaust.

Stock:



Ported head, intake and exhaust:



Pricing:

OPTION 1:

CNC port intake, exhaust and chambers in a GM Ecotec 2.0L or
2.2L cylinder head. Diamond honed guides, valve job and deck
skim included $1099.99


OPTION 2:

CNC port intake, exhaust and chambers
Diamond honed guides, valve job and deck skim
SI Valves Intake Valve - GM Ecotec - 36.1mm (+1mm)
SI Valves Exhaust Valve - GM Ecotec - 31.1mm (+1mm)
Ferrea GM Ecotec Titanium Retainer - use with S10057 valve spring
Ferrea GM Ecotec Dual Valvespring - 75lb on seat, 14mm max lift
GM Valve Seal - GM Ecotec
Clean, inspect and reassemble 16 valve head $1959.99





PICTURES:









Specs:


FlowTest Data
Bore Diameter: 3.575
Intake Valve Diameter: 36.1
Exhaust Valve Diameter: 31.1
Chamber Volume: 50cc





Yes we know there are some other ported heads out there, but we have taken the time to prove the numbers which we are very proud of.

Also our porting company uses 5-axis CNC machines and CAD software for all projects.







Notes:

* All performance data is based on 2.0L, 2.2L is also available but we have not tested it ourselves

* All pricing does not include the head but based on core exchange, we currently have one 2.0L core in stock

 

Are those gains with Option 1 or Option 2?

 

option #2, we didn't test option #1 but should be close

We would imagine anyone doing this type of upgrade would go with option #2, but we have #1 for those wanting to get other valves, springs, etc

 

not gonna lie...its tempting. ill be a buyer ne day...but im poor right now. maybe in the springtime

 

wow... thats pretty good numbers for a port job

 

Wow..that's sweet!

 

awesome.

 

wow 2 grand haha, im wondering how this would go with other mods like meth and smaller pully and tuning and such

 

if i could get this done cheaper (way cheaper) i could provide an extra head for the 2.2 app. free for an in-stock core since i have and extra head sittin around.. lol justa thought.

 

subscribe

 

i wish i had 2 grand

 

Yeah, I need to win the lottery. That's all there is to it.

 

I find it funny that people are surprised. GM flat out told us all quite literally years ago that the exhaust ports on the head where the biggest bottleneck on the stock motor.

Yes, I've been one pointing at the intake manifold, but I've always said after the exhaust side of the head and exhaust itself was opened up.

 

what kind of gains would be expected from a 2.2 with this???
what type of overall hp would this be rated for??

 

damn, thats tempting right there

 

you cant rate it at a HP level....you can make 500whp on a stock head, and you can make 300whp on this ported head. this just increases flow....

as far as the 2.2...what other mods? porting is more of a supporting mod

 

very nice

 

 

so basically you could take the option 2 head to 8200rpm if you wanted to?

 

Did these runs have modified tune in the ecm or was it stock?

 

Yes this setup with thease springs will be good for atleast 8000 rpm.

It was a stock tune with AFR corections only.

 

What exhaust system was used during the runs? ie: header, cat, catback?

Is this a proprietary port profile, or is it the standard M2 Race Systems CNC port profile?(it appears to be M2's "stock" profile)

Does this pricing include shipping??

Is the 2.2L porting compatible the 2007-2008 heads?

Are the valves lapped in the assembled heads?

 

this is the same head from m2race.com??? if so i will have gmr cams in there.... cant wait for before and after dyno results. should be sick

 

So to run this head tuning is involved.

 

It appears to be, they are using the exact same flow specs and even pics/graphics from M2.