pics of ported and polished PI heads. -56k is a no no-

[MustangChris]

hey all,

just wanted to show my new heads... they will be going in closer to the summer (when i ahve more parts and am willing to work long nights and not die of the cold)

here are the heads.

1mm CNC on intake and exhaust
ground out combustion chamber
spark plug inserts
valves
springs
and custom cam (guy at the head shop ordered it, so i dont know the specs, sorry)


<img src="http://photos-e.ll.facebook.com/photos-ll-snc1/v1930/238/125/45208365/n45208365_31924140_3275.jpg">
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<img src="http://photos-a.ll.facebook.com/photos-ll-snc1/v1930/238/125/45208365/n45208365_31924144_4293.jpg">
<img src="http://photos-b.ll.facebook.com/photos-ll-snc1/v1930/238/125/45208365/n45208365_31924145_4548.jpg">
<img src="http://photos-d.ll.facebook.com/photos-ll-snc1/v1930/238/125/45208365/n45208365_31924147_5042.jpg">
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enjoy!

Heads by Drew is the best head shop in Denver. Hands down... EVERYONE takes their heads to him, including boat and airplane engine builders lol!

so if you want his contact info, just hit me up

-Chris

 

[eliyarbrough]

I really don't know anything about this stuff! But I do know about looking sweet as hell!! Drew did a good job, I think.

 

[MustangChris]

lol. well, these are off the new edge 99-04 GTs. the ports on our cars are round (non PI) and are crappy

the intake ports on the PIs are a diamond shape with a bumb at the top.

<img src="http://photos-h.ll.facebook.com/photos-ll-snc1/v1930/238/125/45208365/n45208365_31924151_6039.jpg">

these are much better

the exhaust ports are round on both heads (NPI and PI) but they come in many shapes. Ive seen square on 351 heads...

The ports on these heads were bored out 1mm on both intake and exhuast. This is supposedly pretty stout for N/A, but will be GREAT for boost....

The interior of the ports were ported out with a CNC machine. This means that there is a minimal amount of flaws.

The spark plug holes have had threads added. Mustang heads tend to push out the spark plug (the heads before he fixed them only had a half dozen threads or so) This will keep those plugs in the cylinder where they belong lol.

the heads have been "decked" this means where the gaskets meat the metal, he shaved them down to be perfectly flat to ensure a proper seal.

The combustion chamber has been bored out

<img src="http://photos-b.ll.facebook.com/photos-ll-snc1/v1930/238/125/45208365/n45208365_31924145_4548.jpg">

this lowers compression (good for reliability on N/A cars and allows higher boost with blowers. This is not enough to notice, but it will also help "turbulance" to aid in fuel/air mixture") It also removed some damage that had occured to the heads from the previous owner when her motor exploded.

the CNC porting is nice, because not only is it nearly perfect to what the creater of the CNC program's specifications, but the CNC machine leave behind small ridges in the ports. This can be polished out, but he did nominal polishing because the ridges add a small bit of turbulance, which helps the air and fuel mix, while reducing drag as little as possible.

hope i helped ya out some

 

[EastBayStang98]

good luck with the build

 

[MustangChris]

thanks fellas

 

[hottwheels04]

nice!

 

[novi281gt]

looks good , they look like my heads when we ported them also ...

 

[94darkhorse]

Looks like quality work.

 

[fastgtfairlane]

looks good. would like to see flow numbers and power output with decent cams

 

[C-Tidda]

Damns I wish those where mine..... Good luck with the build homie.

 

[Dalamar]

those look great!