Mr.MartyStone

iTrader: (12)

I know kyle was up there with his old 370 setup, just wondering what kind of numbers people can see out of these things without pushing an asston of water? Kicking around some ideas with some buddies and would like to know what limits people have run into.

Nate

Silver_TransAm

iTrader: (2)

Good question, I would like to know this bit of info too.

y2khawk

iTrader: (5)

8.29 and 171 about 4 years ago

ls1290

iTrader: (20)

Strictly stock or ported 317s? Could make a big difference

Keith

sevanseriesta

iTrader: (34)

what setup was that? That is moven

Mr.MartyStone

iTrader: (12)

Stockish to ****-tons of work, doesn't really matter, would like a few details on the setup though.

Nate

Mr.MartyStone

iTrader: (12)

Harlan who did the heads on that car? And was that with your small motor?

y2khawk

iTrader: (5)

yes, on the small motor (346)

I think those heads went through 3 different "porters" by the time i got rid of them.

They were never that great to start with, i don't think they were ever over 300 on the intake

sciff5

iTrader: (1)

Never that great to start with? sounds like they were getting the job done at 171 traps. And your saying you werent pushing water with them on a 370?

Mike 01WS6

No, he's saying he wasn't pushing water with a 346....

rufretic

iTrader: (37)

Nice, that gives me a little bit of hope that the 317s I'm using in my set-up might hold and not push any water.

sciff5

iTrader: (1)

Wow. would like to hear more about what it took to keep that thing sealed up. People are telling me my puny ls1 is gonna start to warp and push water in short time if I ever wanted to push 800-1000whp

bigbird01

iTrader: (3)

bump...also very interested in this

y2khawk

iTrader: (5)

setup is old and long gone. Search and you will find what you seek, it's been hashed out many times already.

NA$TY-TA

iTrader: (21)

I have TONS of pic's.............

Ill look and see if i still have them hosted....

NA$TY-TA

iTrader: (21)

Yep..... ive had them hosted since 2006.... LOL



Most of the pics are huge...

1.5-2 MB.

http://www.itlxlr8.com/images/Harlan...Twins%20Setup/

Kyle

rufretic

iTrader: (37)

What are the limiting factors when using a 317 head? Obviously they won't flow as much as an after market head so the power potential is a little lower but looking at harlans set-up, you can still make a lot. What else though, my main concern is strength, the heads with the thicker deck are much stronger. By running a 317 head into the 1000rwhp range will I be risking my new block and everything else or is it just a matter of not making as much power? I don't want the heads to have a massive failure and take everything with them, is that even possible?

hellbents10

iTrader: (10)

With a stock head there could be a few factors that limit power or reliable power for that matter. Using a stock valve over 1200hp is not a good idea. It would be time to look into changing the valves and also after that you will start moving coolant with them too. I am sure Harlen at least had stainless valves and most turbo guys with big hp employ the use iconel valves on the exhaust side.

rufretic

iTrader: (37)

Mines a blower so it may be a little different than the turbo guys but I'm sure valves are still a good idea.

bigd98

iTrader: (11)

wow!!! nice !!