New cylinder head UPDATED (56k no way)
 

Dunno if this is in the right forum or not since I'm just trying to find out what I have here...but here goes.

Here are the before pictures of the head, at the bottom are the after pictures when I recieved it back from the machine shop. 88 Turbo CRX ensured I had the funds to pay for the work and he took the cost of the machine work and the valve seals off of the total price of the head. So now I only owe him $350 more, $650 seems like an alright deal for what the head turned out to be.

So now everything's alright, and the head will hopefully go on tomorrow or the day after.

Thumbs up for Mike (88 Turbo CRX) helping me get this ---- sorted out quickly and effectively, good guy to deal with.

https://img.photobucket.com/albums/v...ey/myhead2.jpg
https://img.photobucket.com/albums/v...ey/myhead5.jpg
https://img.photobucket.com/albums/v...ey/myhead6.jpg
Intake port
https://img.photobucket.com/albums/v...ey/myhead7.jpg
https://img.photobucket.com/albums/v...ey/myhead8.jpg
https://img.photobucket.com/albums/v...ey/myhead9.jpg
https://img.photobucket.com/albums/v...y/myhead10.jpg
Exhuast port
https://img.photobucket.com/albums/v...key/export.jpg
https://img.photobucket.com/albums/v...immanifold.jpg
https://img.photobucket.com/albums/v...nkey/pr3-2.jpg

Re: Did I get screwed?
 

looks like ---- to me i wouldnt pau 5 bucks for that head

Re: Did I get screwed?
 

---- that ----. Send it back.


Port and polish is kinda like JDM these days. Anyone with a dremmel thinks they are a head porter. That head looks nasty.
I bought my gsr head for $300 used from 88turbocrx, and $130 to completely rebuild it to stock specs. Done by reputable machine shop. Fully rebuilt, and I'm into it for $430.
That pile of ---- isn't worth $100. Especially if it is milled .20

Re: Did I get screwed?
 

That ---- is so nasty it even made the camera take shitty pics! Yeah I'd have to go with the JDM thing like Shocka said. Just puting port 'n' polish into the name helps it sell like saying something is jdm. So did you pay the remaining money that you owe him? I'd say done deal and cause that head looks fucked up. I mean it probably works but damn that thing is haggared looking. What the hell is up with those combustion chambers? Looks like big gouges taken out by the valves. Don't be scared to say who it was cause then other people know not to buy ---- from him from the looks of that from what he originally told you. Speak up son!

Re: Did I get screwed?
 

800 bucks for that? If thats the case i have a bridge over hear in brooklyn i can sell you.

That head looks like it's been throw alot. Defaintly try and get you money back or just keep it and don't send him the rest of the cash because that ---- is nasty.

Re: Did I get screwed?
 

If you say so, I got it off of 88TurboCRX. I can't really speak for the quality of it myself since I've only seen a number of other real port/polish heads, but this didn't look at all like I expected it to. If it's not what he said it is then I've got no use for it, I've already got a regular B16 head in pristine condition on my motor! I have not paid in full for it yet, just the downpayment.

Re: Did I get screwed?
 

The Valves/retainers look aftermarket to me, the porting looks good... Looks like it needs some cleaning

Re: Did I get screwed?
 

wipe out all the black ---- and see if it is PPed

Re: Did I get screwed?
 

What I'm really wanting to know is if it appears to actually be ported. I can obviously clean it up but I'm also not very happy about the condition I recieved it in. The springs and retainers did look aftermarket to me too, but what do I know :-\

Basically I'm not too worried about it being dirty, but rather I'm worried about getting what I paid for, which is a ported and polished head. I was planning on installing it today but now I'm not so sure.

Re: Did I get screwed?
 

i dont know if its me but this doesnt look all to good. unless its just the picture :-\

https://img.photobucket.com/albums/v...ey/myhead5.jpg

Re: Did I get screwed?
 

yeah you can tell its been ported, night

Re: Did I get screwed?
 

I'll try and take some more, those were taken at night.

Upon further inspection there are little "JG" stamps around the exhaust ports...isn't there a popular headwork shop called JG engine works or some ---- like that? I'll try and get some pics but bear with my as my camera is a few years old.

Re: Did I get screwed?
 

Head looks like ass, probably still usable with some new valves and alot of cleaning and ----.

Re: Did I get screwed?
 

milled .020 is quite a bit, more than I'd want. (make sure you clay to check valve clearance.

It looks more like it has cleaned up casting marks, not real porting, but it's definately not just stock ports, those have been worked.

The combustion chambers look like ass, but your camera sucks balls, so it's hard to tell what's happening. I'd suggest having a shop check it out and if they say its good, have them bead blast it, it'll look way nicer.

Remember, anyone can use a dremel to port and throw some aftermarket springs and retainers in a head, but most the increase in flow comes from the valve job, a ported head with a stock valve job will flow less than a stock port with a good valve job.

Re: Did I get screwed?
 

Couple more pictures...still not exactly the best.

https://img.photobucket.com/albums/v...verallhead.jpg
https://img.photobucket.com/albums/v...ey/springs.jpg
The intake ports look pretty decent
https://img.photobucket.com/albums/v...ey/intport.jpg
The exhaust ports are dirty as ----
https://img.photobucket.com/albums/v...ey/export2.jpg
Looks like there is ---- burnt and caked onto the valves
https://img.photobucket.com/albums/v...rtyvalves2.jpg
https://img.photobucket.com/albums/v...irtyvalves.jpg
Here is the stamp/mark that definately resembles the logo of www.jgenginedynamics.com
https://img.photobucket.com/albums/v...possiblyjg.jpg

Edit: Pic for comparison
https://img.photobucket.com/albums/v...tm0nkey/jg.jpg

Sorry for the poor quality pictures.

Also how would I clay check valve clearance? And how much would .020 bump the compression?

Re: Did I get screwed?
 

the combustion chamber looks like its messed up. i dont know if its the pics again but it looks as if it was chipping off around the valves

Re: Did I get screwed?
 

Listen i have a head that was ported and polished, 3 way angle job and all that bull ----. i paid about $1500. for the whole thing to be done and reworked.. but with you head it looks like the valves look like they need to be reset and there seems to be quit alot of dirt and what appears to be rust on the head. thats not cool . it also looks like there has been some metal to metal contact. take the head to a GOOD machine shop that does heads and ask them . its free and they'll steer you in the right direction. if it was me i would ask the seller who did the p/p work and who set the valves and what are the clearances and settings. anyone that claims valve work would at least know that much. Do not send any more money till you find out whats going on. ayway the jg valves are worth at least $250-$350 if they are in good shape.

Re: Did I get screwed?
 

Those are stock valves, it was listed as just pnp and upgrade valve springs/retainers, no valves.

The combustion chambers look like ass, as do the exhaust valve stems. Go get it checked out, and confirm that you got a bad deal.

Re: Did I get screwed?
 

almost looks like it was run with a bad headgasket. get it checked to see if it's warped.

Re: Did I get screwed?
 

Well it is obvious that it has been out of the car for a while now. There is rust in a lot of places that never should get rusty.

I would say that you got screwed, now just figure out how hard. Give up the dudes name and let him defend this POS.

Re: Did I get screwed?
 

return the head, get your money back.

Re: Did I get screwed?
 

;)

Re: Did I get screwed?
 

Just got back from the machine shop, he thought it was warped at first but he got out the straight edge and feeler gauges and checked it all out. It's not warped, atleast not to the point where it would cause the gasket not to seal it.

He also said this that was interesting, he said that it had been previously rebuilt (I'm guessing when it was p/p'd) but it had also been overheated since because there was a little tab on it and the center had melted out (the metal in the center melts at like 260 degrees). So we figured thats why it was milled. Then he said it had obviously been run since it was rebuilt, for a long time, cause there is a ton of build up on the valves.

Basically it boiled down to $160 to have it rebuilt, valves ground, checked for cracks, and totally cleaned.

Thanks for all the input, not sure what I'm going to do now.

Re: Did I get screwed?
 

This pic worrys me the most..........look at the seats and valves

https://img.photobucket.com/albums/v...ey/myhead5.jpg

It's a above average porting job from JG, which ain't saying a whole lot!!!!!

Have the exhaust guides checked out. With them cut back that far they tend to wobble and use oil.

That along with it being overheated AFTER it was PnP, then milled is why the valves look so brown.

Re: New cylinder head
 

teh combustion chamber looks scary. :o

Definitely DO NOT pay him in full for that head.

Re: New cylinder head
 

jesus, you guys are wankers, that head isnt that bad at all. A little carbon build up and your freaking out like the head is destroyed or something. It's pretty obvious the head was fully redone by JG... probably like 4-5 years ago and the head has been on the car ever since. The tab that was melted off was more than likly taken off by JG when they do the rebuild.

Now as far as the price, I'm sure that head probably cost 1000 bucks back in the day when it was done, but I wouldnt pay more than 500 bucks for it now.

If your stuck with the thing, I'd just take all the valves out, wire wheel all the carbon off, give them a quick lap and wire brush the CC.

Re: New cylinder head
 

The intake side is very nice, but like you said the exhaust side is pretty nasty. I just dropped it off at the machine shop for a full tear down and rebuild, inspection, cleaning, and valve grind. I also asked them to check and make sure the valves are not currently leaking and do not leak when they are finished.

Re: New cylinder head
 

dont back out...unless it was an "ill send it and you pay if you like it" deal. otherwise just go get the thing cleaned up and run it.

Re: New cylinder head
 

looks like a piece of ------- ----.

Re: New cylinder head
 

you ------ homos, why is everyone hating? mike is a great guy, hes been helping HMT out with clutches and many things for so long, hes helped me out on my Z with parts all the ------ time, looks like it was left in the rain, maybe fedex had the box rained on, or maybe you left it outside for a week in the rain, its a used head, and used heads dont come perfect, especially performance used heads. damn >:(

Re: New cylinder head
 

This guy hit the nail on the head. I have no experience with performance heads therefor I wasn't real sure what I had on my hands, all I really knew was that it was pretty dirty. That and I'm not sure when fedex delivered it but it sat infront of my garage for atleast 8 hours to a day.

Mike is a good guy, don't get the idea he's a scammer. The minute I told him about the condition in which I recieved the head and that I was unhappy with it, he offered to take whatever the machine shop charged to have it all cleaned up and back within stock specs off of the price of the head, and he even offered to send me money to have it done if I didn't have enough. He's been very helpful through the whole thing, so don't get the idea he's a deadbeat. He also took the price of the new valve seals off of the price of the head.

As far as the head goes, I am going to keep it and I'll post pictures of it as soon as I get it back from the machine shop...with a better camera :P

Cliff notes:

Mike is a good guy
I'm keeping the head
He's taking care of the clean up job of the head

Re: Did I get screwed?
 

Re: New cylinder head
 

LOL this thread is hilarious.....

but seriously, i'm glad you decided to take it to a machine shop...

Re: New cylinder head
 

i dont give a ---- who anyone is.. the head looks like ----, i dont care if that ------ you call god sold it to you himself...

Re: New cylinder head
 

if it is a pr3 head then i looks like the combustion chambers have been welded to the p72 style to increase the compression.

Re: New cylinder head
 

Thats what a number of people on honda-tech said too...I'm going to have a lot of fun figuring out what my compression ratio is =/

Re: New cylinder head
 

Bump for getting the head back from the machine shop:

https://img.photobucket.com/albums/v...finishhead.jpg

https://img.photobucket.com/albums/v...intakeside.jpg

https://img.photobucket.com/albums/v...nkey/port2.jpg

https://img.photobucket.com/albums/v...xhaustside.jpg

https://img.photobucket.com/albums/v...0nkey/port.jpg

https://img.photobucket.com/albums/v...inishhead2.jpg

For comparison:

https://img.photobucket.com/albums/v...ey/myhead5.jpg

https://img.photobucket.com/albums/v...finishhead.jpg

https://img.photobucket.com/albums/v...ey/export2.jpg

https://img.photobucket.com/albums/v...0nkey/port.jpg

Cleaned up pretty good, they had to mill it .004". Hopefully it'll go on this week on one of my two days off.

Re: New cylinder head UPDATED (56k no way)
 

blink blink 8)

Re: New cylinder head
 

how much did the machine shop charge you for that ?

Re: New cylinder head UPDATED (56k no way)
 

$180 + $35 for my valve seals (had to furnish my own)