Project #1 Heads complete!!!

[phantom505]

They are done here's what was done:

-disassemble/inspect
-clean and degrease
-crack check
-flow test (baseline)
-valve grind/blend/polish
-valve seat grind
-port match
-bowl port
-resurface heads
-flow test (after port work)
-CC measure chamber
-Fel-Pro valve seals
-Comp Cams LS1 valve springs
-Comp Cams LSI valve retainers
-core charge

Stock 3400 heads:
Intake - 212 cfm
Exhaust - 174 cfm

Ported 3400 heads:
Intake - 259 cfm
Exhaust - 207 cfm

Pics on the way!!

[phantom505]

The bank

[phantom505]

Intake side

[jaketuff]

:wow:

Can't wait for the road test Tom...

You got 22% more flow intake side/19% exhaust side.
With the valve springs and such your results should be VERY good at the wheels.

(Just for arguments sake... a 20.9% increase - avg above - would be about 39HP!!! I would bet that you earned about 20HP AND Torque more importantly with that work.)

*Have to wait and see.... :D

JOUT

[phantom505]

Don't forget the turbo will be on there too!

[Cnix16]

how much did all of that cost you?

[Blackrider]

How much where the LS1 Components?

[AaronGTR]

Nice! So the springs did fit huh? You had to use the LS1 spring seats too right? Did they say anything about the spring rates or if they would be too stiff for our cam? My dad can get me stock LS1 springs/retainers/seats for about $60, but I want to make sure they are right for my heads before I buy them.

[Blackrider]

Good Old LS1 Springs! As I always say if the springs wont close the valve the Pistions sure will!

[phantom505]

The heads cost a small fortune. I had so much extra work done that it's not even funny.

These were ported with the intention of putting a turbo on.

The springs are Comp 26915 and 60*V6 use to have the specs....can't find them right now. I would get in touch with them for prices.

I'll see what I can dig up.

BTW, if you drop Franz at FDP Performance an email I'm willing to bet he'll work with you.

[phantom505]

Just got word from Franz, they are 30 cc heads now.

[jaketuff]

Based on the cfm increases, what is an estimate of HP gain??? (NA) GTPprix? Tom?

Pat

[phantom505]

I don't know even where to start the calcuation.

Someone have a calculator for this?

What do you want to know about the GTPrix other than they'll see nothing but Borla tips?

I'm not sure how well these would work on a NA car, they were build to go with the turbo.

[Blackrider]

Originally posted by phantom505
I don't know even where to start the calcuation.

Someone have a calculator for this?

What do you want to know about the GTPrix other than they'll see nothing but Borla tips?

I'm not sure how well these would work on a NA car, they were build to go with the turbo.

Yeah they are Probably not decked at all

[PontiacGT2K]

You guys know if LS6 springs will work? I've got some sitting around....just wonderin.

[phantom505]

They are because it started off being a NA set of heads. Then the turbo happened. They should be decked by .020"

[Blackrider]

Originally posted by phantom505
They are because it started off being a NA set of heads. Then the turbo happened. They should be decked by .020"

Ehhh thats going to bump you up to about 10.2 or 3

[PontiacGT2K]

Any ideas on the LS6 springs?

[phantom505]

I really don't think that it will be that high, Franz said it should be about 9.8. But if I find out it is then I'll just get thicker gasket.