01 blue ss

iTrader: (2)

I am trying to decide on the heads to put on my motor. I know I want to be able to upgrade so I am thinking of going 235's but I don't know if that is going to hurt me.

I know 98z28cobrakiller runs the 225's on his 370, plus since this is a boosted application I don't think a 10 cc runner difference is going to matter.

I plan on building a 427 down the road and upping the turbo size so I'm figuring on getting the 235's so they can go on the next motor. Let me know what you guys think.

Boo"SS"t

iTrader: (2)

If I remember correctly, the AFR 225's has been replaced by the new 230's. But if you're planning on building a 427 anytime soon, then you might want to go with their 245's.

Fbodyjunkie06

iTrader: (10)

New 230's sound like the right choice being smack in the middle of what you were looking at.

01 blue ss

iTrader: (2)

I just sent an e-mail to AFR also to see what they think.

venom ws7

iTrader: (13)

I Already asked Tony about the same thing for my 347ci and going 400+ci in the future
He told me 230 will work for both setups with slight hand port/work by him.

98Z28CobraKiller

iTrader: (17)

That's a different question though as you are using a 3.9 bore. The 245 would be way too tight in there. I spent some time with Tony Mamo at the PRI Show last week and he really wants to put me in a 245 for my 4.030 bore 370ci motor. The only problem is that he wont GIVE me an evaluation pair.

01 blue ss

iTrader: (2)

Thats the same thing he told me in my email or the guy who works there named J Patrick.




Also, venom ws7 is talking about a 230 head which they make a small and big bore for.

Tony Mamo @ AFR

iTrader: (13)

If you looked like the girl in the Turbonetics booth last year we might have been able to work something out!! (AND she rows the gears in a nine second car....LOL)

Guys....someone alerted me to this thread.....besides the quick fun with Carlos above I had to add that you can not run a 245 head on a 347 or a 383 for that matter....you need a minimum bore of 4" to fit the larger intake valve. I don't even think you could physically install a 245 head on a 3.900 bore combination and not have the intake valve slightly clip the side of the bore (it will fit in an LS2 block or larger though).

Bottom line a new 230 is the head of choice for the OP's application.....if he has the funds a Mamofied version of that head with a lightweight intake valve is probably worth an additional 30-40 RWHP under boost...even more on a higher RPM heavily boosted combo where the additional airflow and better valve control will really pay you dividends but if the budget doesn't allow that an out of the box AFR V2 230 is hard to beat.

Hope this helps....

OP, feel free to PM pr call if you need additional info



Regards,
Tony
661-705-8508

01 blue ss

iTrader: (2)

Will do Tony, I'll give you a call.

98Z28CobraKiller

iTrader: (17)

COME ON MAN! Help a bortha out over here. I can sell these things for you. How about, buy one get one free?

And for those wondering who was in the Turbonetics booth at PRI in 2010, it was Jessica Barton.


And Tony, she's upgraded the bolt-ons since then.

Well, next time I hurt my heads, you'll have me over a barrel (just how you want me ) because these heads can be shaved no more.

Good to see ya.

AutomagicLS1

iTrader: (18)

I bought AFR's simply for the fact that they have a thicker deck which will help keep the heads down @ big power. I really doubt the power is that drastic between 317 heads and AFR's when you are cramming 20+lbs through the motor

01 blue ss

iTrader: (2)

I really doubt that one. Psi is a measure of flow resistance. 20 psi against a .062 nitrous jet and a .093 nitrous jet is still 20 psi, but which flows more?

Secondly, lets say I had 2 boxes that were 10 cubic ft and pressurize them to 20 psiand I had those same nitrous jets, one on each box and I hit the solenoid on them. The bigger jet would empty first. So in essence I could drop the pressure in the bigger jet box and empty it out in the same amount of time as the smaller jet box.

So in motor terms If I had 317 heads on my motor and swapped them to some AFR's of TFS heads, I would most likely see a pressure drop but run just as fast as I did before or faster because i made the engine more efficient.

Third, I don't think Los would still run an 8.98 if he swapped out his AFR225's for some 317's

01 blue ss

iTrader: (2)

On a lighter note, this wouldn't happen to be the same chick, Los and Tony

https://ls1tech.com/forums/15697112-post20.html

AutomagicLS1

iTrader: (18)

So how much power do you think? I guess if one is on a budget do you spend ~$2K on heads or add a little more boost?

01 blue ss

iTrader: (2)

Thats a good question. The real answer would be, keep the boost to a minimum and save $3500 for the better heads.

Lets say you know your internals are bulletproof and they can handle 30 psi without issue.

So you are now running 30psi with 317 heads and making 11xx hp. Wouldn't you rather run 25psi and make the same hp? Then be able to turn up the boost to 30psi and make 12xx or 13xx hp.

Don't get me wrong I am all about the budget, but there is also the saying "you gotta pay to play".

98Z28CobraKiller

iTrader: (17)

One and the same. And, she has a twin that is not identical but similar and also very hot.

98Z28CobraKiller

iTrader: (17)

The first problem is keeping a set of stock heads clamped down over 800 rwhp.

The second thing is that you are looking at it from the wrong end. Look at it as a naturally aspirated setup. If an aftermarket head is good for 40 rwhp (not uncommon) on a NA setup, at double the atmospheric pressure (15 psi) it should be good for double the gains (80 rwhp). You could just run more boost to compensate but remember that more boost is typically more heat, takes more time to build and the turbo does have a finite amount of boost that it will make on a setup.

It really boils down to what you are doing. Some guys build a 400+ cube $5K motor, put $3K worth of heads on it and another $3k worth of turbo in order to run 800-1000 rwhp a couple of times a year on a dyno and never go down the track. For them, yes, it's a waste of money. But if you are building a combo to squeeze everything out of it on the drag strip, then you have to pony up for the good heads at some point or another.

supragrl93

iTrader: (3)

yep yep, and yikes for the big girl pic! I learned to workout shortly after those pics were taken

01 blue ss

iTrader: (2)

Trust me you do not need to work out. Some of us like a girl with curves

firefighter813x

iTrader: (6)

You're crazy! You look great. My girl friend has a similar build and could be a model hands down and says the same thing. LOL

My gf just learned what drag racing is and can tell you what a torque converter and fast intake are and can name few other car parts since dating me! Hopefully she'll be taking my C6 down the 1320 next year.

take care-