Forced Induction Superchargers | Turbochargers | Intercoolers

quick and easy question...

Thread Tools
 
Search this Thread
 
Old Jul 23, 2008 | 04:12 PM
  #1  
sidewayz28's Avatar
Thread Starter
TECH Junkie
iTrader: (24)
 
Joined: Jul 2005
Posts: 3,548
Likes: 1
From: seattle
Default quick and easy question...

I have a chance to grab some 317 heads from a member here.. im starting to do some research, and my future plans are a 370 + boost. Not looking for 1000 hp here, just looking for a bad *** set up. Will ported 317's hold their own?? looking for anywhere from 600-700 rwhp. Top end will be ported 317s & 90/90. Any info would be appreciated!
Thanks!
Reply
Old Jul 23, 2008 | 04:16 PM
  #2  
ninetres's Avatar
9 Second Club
iTrader: (35)
 
Joined: Nov 2005
Posts: 3,128
Likes: 4
From: Mufflerville, CA
Default

Yes, but you risk lifting them in the 600+whp region IMO and experience.
Reply
Old Jul 23, 2008 | 04:17 PM
  #3  
sidewayz28's Avatar
Thread Starter
TECH Junkie
iTrader: (24)
 
Joined: Jul 2005
Posts: 3,548
Likes: 1
From: seattle
Default

****, i was about to edit and say that.. "what about the heads lifting"
They'll even run into problems with head studs, huh?

thanks for the comment
Reply
Old Jul 23, 2008 | 04:18 PM
  #4  
sidewayz28's Avatar
Thread Starter
TECH Junkie
iTrader: (24)
 
Joined: Jul 2005
Posts: 3,548
Likes: 1
From: seattle
Default

so in this case its wise to run an aftermarket head, such as AFRs for their *thicker deck* (i believe..?)?
Reply
Old Jul 23, 2008 | 04:19 PM
  #5  
ninetres's Avatar
9 Second Club
iTrader: (35)
 
Joined: Nov 2005
Posts: 3,128
Likes: 4
From: Mufflerville, CA
Default

Originally Posted by sidewayz28
so in this case its wise to run an aftermarket head, such as AFRs for their *thicker deck* (i believe..?)?
ding ding ding!!!!!!!
Reply
Old Jul 23, 2008 | 04:21 PM
  #6  
sidewayz28's Avatar
Thread Starter
TECH Junkie
iTrader: (24)
 
Joined: Jul 2005
Posts: 3,548
Likes: 1
From: seattle
Default

lol thanks

so pretty much, most of the big cylinder head guys (TFS, AFR, ETP etc..) are going to have a thicker deck then your standard GM casting?
Reply
Old Jul 23, 2008 | 06:31 PM
  #7  
forcd ind's Avatar
TECH Veteran
15 Year Member
Liked
Loved
Community Favorite
iTrader: (7)
 
Joined: Sep 2007
Posts: 4,188
Likes: 292
From: woodbine, md
Default

theres a guy on another board making some real serious hp with 317 heads, a lot of boost-the heads had a lot of work, so far no problems
my understanding is the L92 heads have a weaker deck
Reply
Old Jul 23, 2008 | 06:32 PM
  #8  
Shawn @ VA Speed's Avatar
FormerVendor
iTrader: (3)
 
Joined: Jun 2007
Posts: 2,991
Likes: 2
From: Virginia Beach,Virginia
Default

we've made over 800rwhp with 317's with no issues,if you use studs and the 5 layer gaskets-you will be ok
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Jul 23, 2008 | 06:40 PM
  #9  
sidewayz28's Avatar
Thread Starter
TECH Junkie
iTrader: (24)
 
Joined: Jul 2005
Posts: 3,548
Likes: 1
From: seattle
Default

hmm..... see, maybe i shuold pick up a set..
Reply
Old Jul 23, 2008 | 07:00 PM
  #10  
ninetres's Avatar
9 Second Club
iTrader: (35)
 
Joined: Nov 2005
Posts: 3,128
Likes: 4
From: Mufflerville, CA
Default

Originally Posted by Shawn @ VA Speed
we've made over 800rwhp with 317's with no issues,if you use studs and the 5 layer gaskets-you will be ok
That's a bold generalization to suggest to someone asking for head advice that is concerned about lifting them.
Reply
Old Jul 23, 2008 | 07:16 PM
  #11  
Frost's Avatar
FormerVendor
iTrader: (45)
 
Joined: Jul 2005
Posts: 5,913
Likes: 2
From: Richmond VA
Default

Originally Posted by ninetres
That's a bold generalization to suggest to someone asking for head advice that is concerned about lifting them.

No, I've seen it too, more than once, and they were OK with ARP 12pts and GM MLS. If I wanted over 800 I would move to something else most likely.
Reply
Old Jul 23, 2008 | 07:19 PM
  #12  
ninetres's Avatar
9 Second Club
iTrader: (35)
 
Joined: Nov 2005
Posts: 3,128
Likes: 4
From: Mufflerville, CA
Default

Originally Posted by Frost
No, I've seen it too, more than once, and they were OK with ARP 12pts and GM MLS. If I wanted over 800 I would move to something else most likely.
Have you never seen an ls motor under 800whp push mater? I have, including one of my own. I'm sure it has and can be done, but I think its more challenging than a simple "Use GM MLS and 12pt ARPs". If it were that easy, you wouldn't see so many threads with people having issues.
Reply
Old Jul 23, 2008 | 07:52 PM
  #13  
Shawn @ VA Speed's Avatar
FormerVendor
iTrader: (3)
 
Joined: Jun 2007
Posts: 2,991
Likes: 2
From: Virginia Beach,Virginia
Default

we'll i dont know what to tell you.I cant speak for how other people do things,but i can tell you this.I have on more than 1 occasion built 800rwhp turbo engines with 317 heads using arp head studs and mls gaskets and not had any problems with lifting the heads.Hell we made 625 rwhp on a bone stock ls6,factory heads bolts and all.Guy has been driving it for a good while now with no problems.I guess maybe i'm just lucky.
Reply
Old Jul 23, 2008 | 08:06 PM
  #14  
ninetres's Avatar
9 Second Club
iTrader: (35)
 
Joined: Nov 2005
Posts: 3,128
Likes: 4
From: Mufflerville, CA
Default

Originally Posted by Shawn @ VA Speed
we'll i dont know what to tell you.I cant speak for how other people do things,but i can tell you this.I have on more than 1 occasion built 800rwhp turbo engines with 317 heads using arp head studs and mls gaskets and not had any problems with lifting the heads.Hell we made 625 rwhp on a bone stock ls6,factory heads bolts and all.Guy has been driving it for a good while now with no problems.I guess maybe i'm just lucky.
More than luck, I'm not saying it doesn't take skill and know-how. It just seemed to me by your 1st post in this thread that factory casting were of no concern until 800rwhp is surpassed. I don't agree as I have seen cars with UNagressive tunes push water in the 650whp range.

I think it makes a big deal how much the car is leaned on too. I race the F&%# out of my car all summer long on 100* nights on slicks. A lotta load and a lotta heat.
Reply
Old Jul 23, 2008 | 08:07 PM
  #15  
Frost's Avatar
FormerVendor
iTrader: (45)
 
Joined: Jul 2005
Posts: 5,913
Likes: 2
From: Richmond VA
Default

Originally Posted by ninetres
Have you never seen an ls motor under 800whp push mater? I have, including one of my own. I'm sure it has and can be done, but I think its more challenging than a simple "Use GM MLS and 12pt ARPs". If it were that easy, you wouldn't see so many threads with people having issues.

I haven't seen so many threads with people having issues at 800rwhp. I can't speak for your setup, but tuning has a large amount to do with it up top. We can't pull timing by gear or MPH (or over time even) like aftermarket EMS's, so what works on the dyno and what what works on the street when making pulls through 2-3 gears is not the same as what will work when you put 4 gears together (3 if A4s/thxxx's) for a full pull from a stop. It's easy to pick them up and push water at the top end of the track if the timing isn't exactly where it needs to be.
Reply
Old Jul 23, 2008 | 08:10 PM
  #16  
bboyferal's Avatar
TECH Junkie
iTrader: (9)
 
Joined: Apr 2005
Posts: 3,472
Likes: 0
From: Miami, FL
Default

700 rwhp here...

MLS gaskets on aluminum 6.0L heads... Good so far boost spiking to 17 psi.

I beat this car to a pulp.
Reply
Old Jul 23, 2008 | 08:16 PM
  #17  
Shawn @ VA Speed's Avatar
FormerVendor
iTrader: (3)
 
Joined: Jun 2007
Posts: 2,991
Likes: 2
From: Virginia Beach,Virginia
Default

yeah,i guess i should elaborate a little.Making 800 rwhp without pushing the heads off is hard to do.You have to have the correct size turbo and a perfect tune to make it last.most people have too small of a turbo and they have to run the **** out of it to make the hp #,way out of the turbo's effecientcy range-which is really hard on the engine
Reply
Old Jul 23, 2008 | 08:22 PM
  #18  
veee8's Avatar
8 Second Club
iTrader: (40)
 
Joined: Aug 2005
Posts: 1,861
Likes: 0
From: Raleigh,North Carolina
Default

Originally Posted by Shawn @ VA Speed
yeah,i guess i should elaborate a little.Making 800 rwhp without pushing the heads off is hard to do.You have to have the correct size turbo and a perfect tune to make it last.most people have too small of a turbo and they have to run the **** out of it to make the hp #,way out of the turbo's effecientcy range-which is really hard on the engine
Very good point!
Reply
Old Jul 23, 2008 | 11:13 PM
  #19  
sidewayz28's Avatar
Thread Starter
TECH Junkie
iTrader: (24)
 
Joined: Jul 2005
Posts: 3,548
Likes: 1
From: seattle
Default

keep em' coming.. $250 for bare 317 heads is A LOT cheaper then a $2,300 head..
Im hoping i can find some LOW mile 317s, and get them ported by someone to have a decent boost head.
Reply
Old Jul 23, 2008 | 11:34 PM
  #20  
WS6HUMMER's Avatar
10 Second Club
iTrader: (19)
 
Joined: Feb 2004
Posts: 2,542
Likes: 2
From: Alexandria La.
Default

Originally Posted by Shawn @ VA Speed
we've made over 800rwhp with 317's with no issues,if you use studs and the 5 layer gaskets-you will be ok
Do you have to pull the engine out completely to install the studs & heads on an F-body? I cant see any other way but wanted to ask just incase theres an easier way.
Reply



All times are GMT -5. The time now is 08:07 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE