Champion gn1 ported aluminum heads

[STGMAN]

pair of new race ported aluminum heads still in bubble wrap. Just received from champion.
2600.00. Comes with roller springs

 

[marleyskater420]

When you say "race ported", do you mean these are the regular GN1 heads with the CNC porting?

OR are these the GN1 "R" head with the larger intake valve size?

Thank you,
Tyler

 

[STGMAN]

They are gn1 cnc ported, I have lots of new parts if you need any go fast stuff, roller rockers iron cnc ported heads a gn1 intake comp 206 roller cam kit Seimans 60# injectors gn1 aluminum unported heads, etc.

 

[fatride]

So what is the difference of these vs. The 14 bolt GN1's on FT website? Their ad says cnc ported also for $1895

 

[marleyskater420]

Fatride- The regular GN1 heads that are unported flow about 210cfm.

The heads that STGMAN is selling are GN1 heads that have been ported with a CNC machine and they flow about 250cfm at .500 lift.

 

[fatride]

Fatride- The regular GN1 heads that are unported flow about 210cfm.

The heads that STGMAN is selling are GN1 heads that have been ported with a CNC machine and they flow about 250cfm at .500 lift.

See attached . CNC ported $1895

 

[marleyskater420]

See attached . CNC ported $1895

A CNC machine did the original port work to get the intake runners to the "stock" or "unported" GN1 flow numbers. So technically, yes, the GN1 heads are in fact CNC ported to begin with. A cnc machine is what cuts into the casting to create the runners for the base GN1 head.

HOWEVER, it is "common" or I should say, "given/understood" that we don't really call the base port work as the "cnc" version of the GN1s. Vendors do that so that people who aren't familiar with all the terminology purchase those heads thinking they are getting the "CNC Race-ported" version of the GN1 head, when in fact they are not. It is not exactly the most ..how shall I phrase this...the most easily understood or straightforward way of putting the description of the part they are selling.

 

[horndog]

See attached . CNC ported $1895

Race ported is another $750 option, brings the price up to $2645 not including tax or shipping

 

[fatride]

Race ported is another $750 option, brings the price up to $2645 not including tax or shipping

So as asked eariler ,then they are GN1 R heads?.

Just trying to understand what they are. In market for a set ..

 

[horndog]

So as asked eariler ,then they are GN1 R heads?.

Just trying to understand what they are. In market for a set ..

No, GN1-Rs have larger valves. These have 1.9 intake GN1-Rs have 2.00 or 2.02, I cannot remember

 

[horndog]

Here are the different between champion irons and GN1Rs

I can send you a set of GN1s pics and you can compare the two if you want


Sent from my iPhone using Tapatalk

 

[marleyskater420]

So as asked eariler ,then they are GN1 R heads?.

Just trying to understand what they are. In market for a set ..

Hey man,

I shot you a PM with my number in it.

If you have 5 minutes I can answer all your questions about cylinder heads. It will help you better understand what to look for and what to avoid.

The offer is open if you want.

 

[STGMAN]

These heads are gn1 14 bolt and “race” ported and with an 80 dollar spring upgrade and no 3 month wait period

 

[STGMAN]

Here we go

 

[Ernie GN]

So as asked eariler ,then they are GN1 R heads?.

Just trying to understand what they are. In market for a set ..

It's an extra option that they sell

 

[forcefed3.8's]

The $750 porting and GN1r heads are 2 different things. GN1r heads have larger intake valves, wider chambers, and different valve spacing, not just a port job.

 

[Ernie GN]

So what is the difference of these vs. The 14 bolt GN1's on FT website? Their ad says cnc ported also for $1895

I know that they come with cnc Combustion chambers standard.

Yeah that’s what it looks like

 

[Ernie GN]

These heads are gn1 14 bolt and “race” ported and with an 80 dollar spring upgrade and no 3 month wait period

No waiting is the best

 

[fatride]

Yeah the add on FT website is kind of misleading .. With stating CNC ported, and the GN1 R $750 option...

 

[Ernie GN]

They are gn1 cnc ported, I have lots of new parts if you need any go fast stuff, roller rockers iron cnc ported heads a gn1 intake comp 206 roller cam kit Seimans 60# injectors gn1 aluminum unported heads, etc.

Interested in the rockers.
Which ones are they?