Shop trying to pull fast one... 1g Head Vs. 2g Head

[GSXeclipsePSI]

Hey, i dropped my cars head off at the shop to have them tell me what was wrong with it.

They fixed my head by accident so they just gave me another head back with bent valves. Now the head I got didn't look like my 91 1g head.

This head has smaller intake ports, and a black plug over the location for the CAS.

He told me he was gonna grab me a galant head. So I know know that it has smaller intake ports, does that make it a 2g head?

The cams that are in the head say there out of a 93-94 5speed manual.
Intake Cam A exhaust Cam C or 252/252.

I wanna know what I got in front of me so I can get a 1g head back if that's the case. The intake gasket marks on the head looks like a 1g intake gasket mark that I compaired my gasket to. But there is a gap that makes it look like the 2g head.

So I don't know what these means.

 

[myturbo]

you can use it but there will be a pretty good power loss..i would get your head back unless they have another 1g head..and 7bolt and 6bolt heads are diffrent. you can look in the classifieds for a head.. what was the matter with your head ..if it was just bent valves i have some

 

[cruisintalonawd]

there will be a pretty good power loss

I used a 2g head and 1g intake and saw no differance in performance on 15PSI.

Anywasy your pic is right 2g one the left 1g one the right

 

[JMiller]

So they accidentally fixed your head and gave you a broke one, sounds suspect.

 

[JMiller]

Oh and if the CAS was blocked off it was probably a 95-96 head(which doesn't have a cam angle sensor)

 

[ApexVIII]

Oh and if the CAS was blocked off it was probably a 95-96 head(which doesn't have a cam angle sensor)

they doo its just not in that spot, its under the intake cam sprocket

 

[byebyev8]

Depending on what mods you have you might loose a little bit of topend and gain some midrange power with the 2g head. But most likely it won't be a noticable difference just that you have to drill out the head bolts and install your cas

 

[rbwtrans]

If you brought your head to a machine shop, and they accidentally fixed it, why not pay the bill, get your fixed 1g head, and be done with this whole thing?

 

[Dsmj89]

Is it just me, or does the 2g head look like a 1g head with a 2g intake manifold gasket put on making it look like 2g runners ? I'm blind if i'm wrong . Anywho, if the 2g head is good, just port the runners to match the 1g intake manifold. I plan to do this on my head later this year when i get me 1g intake mani.

 

[the_mork]

You will only lose power by porting the 2g head and putting a 1g intake manifold on it.

1g heads have the larger ports that will show a great increase one a flowbench but the 2g ports combined with the design of the intake manifold flow at a much higher velocity. If you port your 2g head and put a 1g intake manifold on it you'll end up losing both the velocity of the 2g setup and the high flow of the 1g setup with the end result of total crap.

Look into an evo3 intake manifold.

It may not mean much to you and it certainly doesn't prove anything but the evo motors all have 2g sized intake ports so Mitsubishi must have stuck with them for a reason.

 

[xsboost]

Imagine my surprise to open this thread and see a big pic of my 1g and 2g heads

Seriously though. It's their mistake so they should fix it. If that means taking the good valves back out of your head and putting your bent valves back in then so be it. If they did work on your head that you didn't ask them to do that's their fault. That doesn't warrant them giving you a "lower quality" head. Now somebody else may be getting a rebuilt 1g head that they can't use unless they know how to properly do a 1g head swap on a 2g. And if they already gave your head to the other people they need to get up with them and fix the mistake. No one else should have to pay for their mistake.

 

[the_mork]

What did you take the head in for if they weren't going to fix it?

 

[GSXeclipsePSI]

I brought the head in to have them check it, to tell me what was wrong with it. This is my 1st engine tear down.

They just gave me this head, I asked him a few times if it was correct, cause I forgot to check the intake ports.

So if I use this head will the larger 1g intake manifold harm me? Cause if so, then I'm going to fight this. I'm not going to get a new intake manifold just cause they messed up.

And they are trying to make money cause he stated to me on the phone, that they charger $350 for a rebuilt head, they were giving me a deal for $300.

I was going to rebuild the head myself, buy SS valves. I don't also have $300 right now for my head to be rebuilt and also when I can do it for less




And that's not my pic, I am using it as a exp. I got it from another post.

 

[the_mork]

You can use a 1g intake manifold on a 2g head but not the other way around. Putting the 1g manifold on the 2g head would be a major performance loss. You can either fight it or get an evo3/RVR manifold for better performance.

IMO unless you are a drag racer and see high upper flow the 2g head is a better choice anyways so you get the best of both worlds with the stronger 1g bottom end and the higher velocity 2g head which would be great for a street car.

 

[jrohner]

And they are trying to make money cause he stated to me on the phone, that they charger $350 for a rebuilt head, they were giving me a deal for $300.

I was going to rebuild the head myself, buy SS valves. I don't also have $300 right now for my head to be rebuilt and also when I can do it for less

Yeah 350 is a rip -- it would be about right for the head and all, but you brought them yours.

My redone head for my 1g was about $100 labor for the valve job, and I got really nice new SS valves for $100 on ebay.

 

[cheap90gsx]

wow, i would get that head back. honestly unless you signed for the work you wanted to be performed they shouldn't be able to charge you for it.

 

[19BLACKGST98]

Yea tell them to pull thier valves out and shove yours back in. They can eat the cost of having it hot tanked/cleaned.

 

[ArticNemesis]

Your biggest problem would be the 2g head NOT fitting over the 6bolt studs. 2g studs were 1mm smaller than the 1g studs, so the head would have to be machined to fit over the larger studs anyway.

Tell them you want YOUR head back.

 

[bling5tatus]

2g head on a 6bolt block is bad ass... i just traded a large port 1g head w/ intake manifold for a 2g head w/ evo3 intake manifold yesterday... ON PURPOSE.

If you find yourself a 2g intake manifold or an evo3 you will NOT regret the power gain you get down low and in the mid range... and you have a turbo for flowing air up top. 2g heads have made 600hp so... unless you're anywhere close to that, you'd actually be losing a bit by using a 1g head. Think of it as an upgrade.

If you don't believe me, it's the same idea as putting a large fmic on a t25 car... what happens? Large intake space causes little turbo to take too much time to fill up the space and do work.

Think of it as an upgrade. If you decide upon keeping it, make SURE that you drill the head stud holes large enough for oil to flow through the corner stud hole because otherwise you will get low oil pressure in your head. ie. don't just drill them large enough for the stud to fit through, if you need to test, go see how much play the 6bolt head stud has in a 6bolt head then drill the 2g head to match that amount of play otherwise you'll regret it.

 

[bling5tatus]

you can use it but there will be a pretty good power loss..

Prove this info so it doesn't seem like you're just making claims w/o anything to back it.

 

[pboglio]

That is the suck. Remind me not to use those guys for headwork.

 

[GSXeclipsePSI]

Yea, Clearwater Cylinder Head Exchange in Clearwater, FL.

So I gave away my old 2g intake manifold, now I'm pissed. I have a 2g w/6bolt and I got all the stuffings. So now I still have my manifold I'm not able to get a new one now. So I will use the 1g intake manifold.

I have arp head studs, they fit right into the holes in the head so am I good to go?

I still rather have my 1g head.

 

[the_mork]

So I will use the 1g intake manifold.

It will work but scour the classifieds for a 2g manifold. An intake manifold off of a Hyundai with a n/t 4g63 is also rumored to be an upgrade. There is a thread about it on here somewhere but no one ever tested it.

 

[xsboost]

I have a couple 2g intake manifolds laying around and an EVOII manifold if a friend of mine doesn't get it. I see 2g manifolds in the classifieds and on ebay all the time. If you're going to go with the 2g head you might as well get a matching manifold. They're not that expensive.

 

[toofast82]

The 2g head is a great performer and doesn't get enough respect
But still, I would want "MY" head back, the one I took there