7mge port/polish

[87'N/A]

I'm wondering if anyone can tell me how to port/polish my head?

 

[supraduper]

porting and polishing is an art... an artist cant tell you how to paint can he?

your best best.. is to google search and all you'll find is general knowledge...

or you can youtube port and polish... theres some vids on there

 

[gofastgeorge]

Then there is the tried & true way,
buy some performance engine building books............

Blindly going in and grinding away to make aluminum dust can hurt performance too.

 

[87'N/A]

anyone know how much it would cost to get it done by any chance?

 

[Moy]

expensive. over 1000 easily

 

[87'N/A]

Hmm... maybe ill watch some videos and try it out on some junkyard 7m heads. No way I'm spending over 1000 for someone else to do it.

 

[s383mmber1]

1000 dollars huh? Id laugh at the first machinist who told me over 1000$

 

[87'N/A]

1000 dollars huh? Id laugh at the first machinist who told me over 1000$

So you're saying it won't cost that much?

 

[benchwarmer]

So you're saying it won't cost that much?

Any machinist who would do that much work, and it is a LOT of work, for less than $1K can't be trusted.

 

[nightrider760]

here in mexico will cost you 250 to 300 dlls

 

[AJ'S 88NA]

But would it be done right? If you are going to have it done by a shop, have it done buy a shop that has done several 7M's. Some will charge you $300-$400 for a "stage 1" port job, usually amounts to buzzing around the ports to take the flash off. Not worth it IMO.

If you are not going pretty much all out in a rebuild, you won't realize much gain. If you have cams, bigger valves, etc., then you might get a few more ponies.

 

[Guyana00]

I would just like to mention unless you plan on keeping the GE or want to go all out on it I would just wait patiently and save money for a GTE swap.

 

[87'N/A]

i talked to one shop they quoted me 300-750. I'm going to call around to a lot of places and see if i can find one that has done 7m's before so i can get quality work done.

 

[IJ.]

And some kid with 2 washers on a GTE will still blow your doors off

 

[87'N/A]

I'm not planning on racing everyone i come across. I just want a little more power to make for a reliable but quick daily driver. I can go turbo anytime, I just wanna have a little N/A fun first. I know you all are going to have tons of reasons why this is stupid or why you wouldn't do it but it's what i wanna do.

 

[san supra]

this aint stupid! gasket match that shit.

put the gasket up to it and get rid of the excesses metal . dont touch the exhaust it will fuck up scavenging.

this motor will be great to learn from, so just have fun and take your time.

 

[Guyana00]

And some kid with 2 washers on a GTE will still blow your doors off

Lol...2 washers :biglaugh:

 

[87'N/A]

this aint stupid! gasket match that shit.

put the gasket up to it and get rid of the excesses metal . dont touch the exhaust it will fuck up scavenging.

scavenging??

 

[zachm611]

look to spend around 650 for a decent PNP and a valve job

 

[IJ.]

scavenging??

I think he means don't port match and remove the reversion dams but in true Mk3 owner fashion his post on it's own is worthless.....