Rise of the Phoenix

iTrader: (27)

I know everyone on Tech has either TEA, AI or TSP port their 243/799 heads, but browsing on the Flowtech Induction website, noticed he (Ed Curtis) ports these heads as well. The price is a little bit more than what TEA and AI do it for, but since I'll be having Ed spec out the cam, thought it might be worth getting everything through him. Is anyone on here running Ed's ported heads? If so, would love some feedback on the port quality and info on the complete setup with dyno numbers and track times. I searched a lot yesterday on the GTO forums and from the few setups I saw, they were putting down some great numbers.

On a side note, if you had the choice between running a ported set of 243/799 heads or Trick Flow 220 as cast heads, which would you choose and why? Which set of heads will make better numbers? Which heads will yeild better low end torque? Thanks in advance for the help.

Gray86hatch

iTrader: (83)

He did my Ls3's

He said he would like them back when I am looking for more power and have more $ to spend on them.

Camaroking1996

What kind of gains did u get from the heads being ported?

mac62989

iTrader: (1)

Off topic but does he do 241s?

Gray86hatch

iTrader: (83)

Never ran them unported.

Rise of the Phoenix

iTrader: (27)

It's not listed on the Flowtech Induction website, but he may do some hand porting on them.

mac62989

iTrader: (1)

His site wasnt working for me last night..

mercccc

He only has a cnc program for 243/799. He said his 2.055 valve head went mid 9s in an fbody with a th350...light weight street car. I want a set badly.

Rise of the Phoenix

iTrader: (27)

Here is the one I would choose if I did it. I removed the pricing due to them not being a sponsor, but it's more than what TEA and AI charge. This is the second tier option. The one your are talking about above is the 3rd tier option, and it costs $200.00 more. My setup is 95% street, so I think that option would be too much, but maybe not.

I wonder what CC the heads end up being with this particular package?

GM CNC Ported 243 LS6-LS2:
Customer must supply castings
Fully CNC Ported Intake Runners
Fully CNC Ported Exhaust Runners
Fully CNC Ported Combustion Chambers
REV 2.020 Stainless Steel Intake Valves
REV 1.570 Stainless Steel Exhaust Valves
Manganese Intake Guides
CBN Milled Deck Surfaces
Lunati Valve Spring Package
Chromemoly Steel Retainers
Hardened & Machined Valve Locks
Steel Shell Viton Valve Seals
Many Valvetrain and Spring Options Available

mercccc

Good question. Is this goin on a ls1. Best bet would probably be the stock valve or 2.02 size. Shoot Ed an email. He's got some nice pictures of the cnc work.

Rise of the Phoenix

iTrader: (27)

Yeah, on my 02 WS6. The one I posted above is the 2nd tier option, bigger than stock valves. The first option is with stock sized valves. Not sure which one would be better for a mostly street car. I'll have to shoot Ed an e-mail and see what he says.

You think this would be a better bet than going with some TFS 220 as cast heads? My number one option would be some of the new AFR 210 or 215 heads, but as of right now, that's out of my price range.

Camaroking1996

Anyone else heard any results from these heads?

mac62989

iTrader: (1)

Anyone have their email address?

mercccc

nonsponsor@Verizon.net

Rise of the Phoenix

iTrader: (27)

Found out from Ed that the intake runner volume is 229cc for the 1st option (stock sized valves) and for the second option, the intake runner volume is 234cc (these are with the 2.02" intake valves). Ed said either would be great for a street car. I was worried about "under the curve power" because both options seem pretty big to me, but he said it's all about the cam and having the right timing events.

Now, just need to figure out what I want to do. My delima is this. I pay for some 243/799 heads, likely around $400 to $500. Then, have to pay for the port work. In total, I'll be at least $2,000 in. I can get a set of as cast TFS 220 heads for less than that and for just a little more, can get the head of my dreams; AFR 210 or 215.

Would love some feedback.

mercccc

Ya that's a tough decision. I guess it would be an easy call if you allready had the 243/799 heads.

Rise of the Phoenix

iTrader: (27)

Yeah, wish I did. I know Advanced Induction has two different CNC programs for 241 heads, which I have, but not sure if it would be worth my trouble. Do you think there is anyway that a CNC'd 243/799 heads can hold a candle to either the TFS 220 or AFR 210 heads? I just don't see them being able to out perform them. Plus, with either the TFS 220 or AFR 210 heads, you're getting an aftermarket casting and a thicker head deck, so if down the road I want to spray, I can do so more safely than with OEM heads.

mac62989

iTrader: (1)

^I know your always hatin on AI but Im pretty sure their high compresion 241s are within like 10 hp of their porting on 243s..

http://advancedinduction.com/LSX/AiLSxHCRGMLS1Head.php

VIPRETR2

iTrader: (63)

Buy once, cry once. Get the AFR heads.

Rise of the Phoenix

iTrader: (27)

Can anyone chime in on intake port volume and what would be considered too much for a 95% street car? I know the FTI 243/799 heads, stage 1 and 2, have larger intake port volume than the AI stage 2 heads, which is 226cc. Does having a larger intake port volume cause you to loose low end torque and throttle response? I know the AFR 205's are know to be "torque monsters" and always heard it's because of their small port volume and high velocity ports. Anyone have any helpful info on this?