Thank you. I've been waiting for some post like this, and more of them if anybody has experience doing this.

[QUOTEwhy do you think a hand port job will be better than CNC porting? ][/QUOTE]

Because many of the heads, as Patriots, are just a generic ported 243 head. A machine might be more precise, but the CNC heads might not be worth it for me. I want to have a 243 head that is going to be the best performing head for my mods and ET goals. My tuner hates the CNC Patriots, and didn't gain any hp over the stock 243 heads on a few big cam ls6 cars.

 

We offer a TEA ported 243 casting head. Depending on what your looking to do HKE has made 545 at the wheels with an LS1 and TEA

Send me a pm or give us a call and we can set you up. We also offer an econo port job as well. HKE will hand port things too depending on what we're tying to accomplish. We do not subscribe the one size fits all theory.

 

 

Id be weary of porting heads yourself unless you've got experience porting. LS1 ports are very picky, ive seen people port heads and lose flow because they removed material in places they shouldnt have.

LS series heads are not like smallblock heads where you just hog out the ports as big as you can get them. If im going to clean up a set of stock heads ill blend the valve seats to the bowl and deburr the combustion chamber and leave the rest as is.

Like everyone else has said, CNC heads are really the best way to guarentee performance.

 

I heartily endorse TEA to do your head work. They did my TFS heads,(CNC) with a custom finishing, and they had phenominal flow and dyno numbers with just a small cam. Another great place for head work is Cartek.

 

Well thats not really true. A cnc program guarantees the same results each time as in the machining to the head. Some of the best head guys are hand porters.

 

Good point. A CNC port program is derived from and is a close copy to what a hand porter has done.

 

And that's fine if you want a custom set of heads.....sorry, but it's been down to a science for some time now. The majors are running CFD simulations with head designs, and can make changes on the fly to evaluate the net effect on flow.....that's something that a hand porter can't do, unless he has endless time.....and an endless supply of heads to experiment on. Consistency is key...for the seller, and the buyer.

 

[QUOTE=lucky131969;1574082989]And that's fine if you want a custom set of heads.....sorry, but it's been down to a science for some time now. The majors are running CFD simulations with head designs, and can make changes on the fly to evaluate the net effect on flow.....that's something that a hand porter can't do, unless he has endless time.....and an endless supply of heads to experiment on. consistency is key...for the seller, and the buyer.[/QUOTE]

Whats wrong with a custom set of heads?
Good porters can produce consistent results without a machine to do it for them. Its called experience.

Software can only simulate so much, experience and a flow bench takes over from there.

There is plenty of simulation software out there for engine building but it doesn't make you an engine builder just because you have a program on your computer. Same with head porting.

I'm not putting down cnc'ed heads at all. I'm just stating facts. There are guys who can hand port with better results than a simulated program. Yes its time consuming and if you want to call it custom go ahead but but if your looking for the best then sometimes you have to wait for it. I've heard of heads taking 1.5 years to get done before, you get on the list and wait for them. Same as with anything.

Ever seen a set of heads touched up by Tony Mamo of AFR? They take a while to get and make more power than the standard cnc'ed AFR off the shelf. Thats just one small example.

 

Think that also fits the application for the car and driver.

Do you want high rpm horse power for bench, bar and dyno racing ? do you want low end torque for off the line or out of corners and up to speed?
do you want just BIG numbers or a combination that is a winner ?
or do you want an inexpensive sets of heads to fit your budget but have good numbers ?

personally I love low end torque for out of corners and up to redline 3rd gear.

 

Obviously you have no experience with any type of CFD software i.e Icepak, Fluent, etc...... There have been some amazing advances in the last 20 years........read up on it.

 

Yup. Some times ppl spend too much time in the shop or on the computer instead of in the drivers seat.

Seat time in a stock vette can be far more important on results then the supper sexy race motor and a non skill driver.

 

Look I'm not going to argue with you about this. If you want to put your faith in software then go ahead. But a dvd and a cnc machine and open up shop. Its that easy right? Thats why one cnc'ed head sells for the exact same amount as another right? Its just software and thats all you need.

I'm not saying software is bad but I'm not sure the last time I saw someone drive a dvd down the track

Its a combination of experience and tools that get the job done and software is a tool. I didnt say that guys who hand port do it by candle light in a cave.

 

DVD? .....Okay..........enough said....

 

well, it's better than VHS

 

BY the way my heads are 100% cnc'ed All Pro and I know Richard uses a program...LOL

All I said was that the cnc gaurantees the same results but is not indicative of how good the head is.

There is more than one way to get the job done and some ( not all) of the best ported heads out there are done by hand. Or cnc'ed and then touched up by hand. All simple facts.

How your software is packaged has nothing to do with anything but I'm glad to see that seems to be what you now want to critique now. Clues me in to your intentions. I was trying to help the OP. I';; un subscribe from the thread and leave, its not worth arguing with people over.

 

VHS? I'm still using BETA!

 

RPM Motors installed there RPM243 head with a 224 comp cam I made 437/412 and the torque curve is as flat as can be. From 2500rpm-6200rpm i make at least 380ft-lb. And the RPM dyno is a load beaing dyno not a Dynojet. The car makes power everywhere, sounds great and flat out rips. I too contemplated going with the $$ AFR heads but overall I am very happy I saved the money which paid for a new clutch. Next month I will probably add a FAST92 and retune for hopefully 450/420.

 

Did Charlie match port your LS6 intake to the heads? If your intake is already match ported you might be better suited to send your LS6 intake to TPIS and have them put thier 90mm snout on for a few hundred than spending all that money on a fast

 

I have TEA Stg 2 LS6 heads and they are great. Show me another CO. that can get the flow numbers that TEA can from CNC porting LS6 heads, you wont. Mods/numbers/track times on my sig.