Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

Prc stage 2.5 5.3 heads or prc stage 1 ls6 heads

Thread Tools
 
Search this Thread
 
Old 05-28-2009, 09:12 PM
  #1  
TECH Enthusiast
Thread Starter
iTrader: (5)
 
97ta383's Avatar
 
Join Date: Nov 2007
Posts: 515
Likes: 0
Received 0 Likes on 0 Posts
Default Prc stage 2.5 5.3 heads or prc stage 1 ls6 heads

So i broke a header bolt in 1 of my heads and i have $1100 saved for mods and ive decided to do a head swap i will be swaping cams later on but i dont have the money now so im just doing the heads and i dont know which ones would be better i would like it to perform well with the stock cam cause it will probebly be a while before i swap cams cause i want to work on building up the trans, rear, and suspention. So what heads would you guys choose my car is a 02 ws6 a4 with full bolts and stall i would like to make about 360rwhp with the heads my car made 332rwhp now and i will probebly do a cam in the 230 range when i swap cams and hoping for around 400rwhp when i do the cam thanks for the advice.
Old 05-28-2009, 09:37 PM
  #2  
Registered User
 
Fratbragen's Avatar
 
Join Date: May 2009
Location: SoCal, CA
Posts: 1
Likes: 0
Received 0 Likes on 0 Posts
Default

interested in this one as well
Old 05-28-2009, 10:28 PM
  #3  
Launching!
iTrader: (11)
 
cellulis44's Avatar
 
Join Date: Sep 2007
Location: Virginia
Posts: 226
Likes: 0
Received 0 Likes on 0 Posts
Default

Bo white, Greg Good, Richard.
Old 05-28-2009, 10:36 PM
  #4  
On The Tree
 
TXSSIVE's Avatar
 
Join Date: May 2009
Location: Austin, TX
Posts: 117
Likes: 0
Received 0 Likes on 0 Posts
Default

I'm trying to decide on the PRC 5.3L CNC'd Stage 2 or LS6 CNC'd heads as well. I thought I read that the LS6 heads offer more on the top-end of the rpms. Am I correct on this? I'm after more low to mid range power and torque so I would like to know the difference between the two.
Old 05-28-2009, 11:02 PM
  #5  
Restricted User
 
willyfastz's Avatar
 
Join Date: Jun 2003
Posts: 588
Likes: 0
Received 0 Likes on 0 Posts
Default

Get a set of stock 243's off of ebay for around $500. Then you can take the other and get a cam and some springs. Would be a much better deal IMO.
Old 05-29-2009, 01:43 AM
  #6  
9 Second Club
iTrader: (10)
 
Nitroused383's Avatar
 
Join Date: Aug 2008
Location: Washington
Posts: 2,817
Likes: 0
Received 6 Likes on 4 Posts

Default

Originally Posted by willyfastz
Get a set of stock 243's off of ebay for around $500. Then you can take the other and get a cam and some springs. Would be a much better deal IMO.
Very good advice, thats basically what I did. I'm making around 410whp and 390tq with a cheap setup. Make sure you have them milled to bring the compression up around 11:1, it cost me $50. Oh ya I'm running a small cam mid 220's duration. For around $1,100 I think you could make 420whp+ with a bigger cam. Check out my signature link. It's a lot easier to degree your cam when the heads are off too.
Old 05-29-2009, 01:48 AM
  #7  
TECH Veteran
iTrader: (7)
 
Sharpe's Avatar
 
Join Date: Aug 2004
Location: Southeastern IL
Posts: 4,997
Likes: 0
Received 1 Like on 1 Post
Default

If you are doing all the work, you might consider going with some stock 243's used (~$550 shipped) AND a cam.

I have New In Box LS7 lifters and Patriot Dual Gold springs and head bolts and other stuff for sale, BTW.
Old 05-29-2009, 03:00 AM
  #8  
TECH Enthusiast
Thread Starter
iTrader: (5)
 
97ta383's Avatar
 
Join Date: Nov 2007
Posts: 515
Likes: 0
Received 0 Likes on 0 Posts
Default

so if i were to get a set of 243 heads should i have them ported or just get them milled?
Old 05-29-2009, 07:52 AM
  #9  
11 Second Club
iTrader: (2)
 
fastvet's Avatar
 
Join Date: Dec 2007
Location: !!!!TEXAS!!!!
Posts: 588
Received 0 Likes on 0 Posts

Default

Bro, just get the 5.3L stage 2.5 from texas-speed. They will mill them for you. I would go with a 59cc. This will bump your compression up to about 11.3/11.4. Thats perfect for the power your trying to achieve
Old 05-29-2009, 03:30 PM
  #10  
Launching!
iTrader: (2)
 
jason00ss's Avatar
 
Join Date: Apr 2007
Location: lewisburg, pennsylvania
Posts: 234
Likes: 0
Received 0 Likes on 0 Posts
Default

depending on what cam you eventually go with, the stage 1 ls6's come with ls6 springs which i don't know off the top of my head how much lift they are good for, but for most aftermarket cams these springs won't cut it. the stage 2.5 5.3's come with springs good for 650 lift so when you do swap cams, thats one less thing you need to worry bout, just my .02
Old 05-29-2009, 08:26 PM
  #11  
LS1Tech Premium Sponsor
iTrader: (4)
 
Jason 98 TA's Avatar
 
Join Date: Nov 2001
Location: Texas!
Posts: 4,229
Likes: 0
Received 2 Likes on 2 Posts

Default

I don't think you can go wrong with either setup. Just a little hint though we have a little special going on next week that I think you'll like!!

How about LS6 Stage 2.5s for the Stage 2.5 5.3ls normal price!!!
__________________
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
Old 05-29-2009, 09:01 PM
  #12  
LS1Tech Premium Sponsor
iTrader: (4)
 
Jason 98 TA's Avatar
 
Join Date: Nov 2001
Location: Texas!
Posts: 4,229
Likes: 0
Received 2 Likes on 2 Posts

Default

Here's some LS6 PRC pics!!







__________________
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
Old 05-29-2009, 11:25 PM
  #13  
Restricted User
 
willyfastz's Avatar
 
Join Date: Jun 2003
Posts: 588
Likes: 0
Received 0 Likes on 0 Posts
Default

Jason, do you fix the chambers or do you leave them as in the pic?
Old 05-29-2009, 11:27 PM
  #14  
Launching!
iTrader: (11)
 
cellulis44's Avatar
 
Join Date: Sep 2007
Location: Virginia
Posts: 226
Likes: 0
Received 0 Likes on 0 Posts
Default

love of RICHdumdumdum got turned into something like DUM DUM DUM...

what a politcal website.. swingin from the sponser's nuts...

COME ON EVERYONE!! LETS SPOON FEED THE POOR PEOPLE!!
Old 05-30-2009, 12:46 AM
  #15  
TECH Fanatic
iTrader: (9)
 
ZMONSTER!'s Avatar
 
Join Date: Nov 2006
Location: Fresno, California
Posts: 1,985
Likes: 0
Received 0 Likes on 0 Posts

Default

How did A R D wind up in the word filter? Are you kidding me?

OP I would say get some 243's for cheap and have them ported. Bo White has a great rep if you can get him to do them for you, and there are others who can do just as well. 243's will give you alot of room to grow, more so than if you get the 5.3's and mill the hell out of them. I did and I make good power for what I have, but Im pretty well stuck with the cam I have.
Old 05-30-2009, 07:06 AM
  #16  
TECH Addict
iTrader: (59)
 
Bo White's Avatar
 
Join Date: Oct 2004
Location: Vance, Alabama
Posts: 2,357
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by cellulis44
Bo white, Greg Good, Richard.
My name shouldnt be in a list of that calibur. Im retired anyway, thanx though.
Old 05-30-2009, 07:20 AM
  #17  
TECH Junkie
iTrader: (2)
 
AINT SKEERED's Avatar
 
Join Date: Apr 2002
Location: Albany La
Posts: 3,985
Received 350 Likes on 239 Posts

Default

Originally Posted by fastvet
Bro, just get the 5.3L stage 2.5 from texas-speed. They will mill them for you. I would go with a 59cc. This will bump your compression up to about 11.3/11.4. Thats perfect for the power your trying to achieve


SO he should get Ported heads and mill them to 11.3/11.4 and run stock cam on pump gas?

TO the OP , stay away from internet bull$hit. I think stock ls6 heads with a good valve job and a little milling, a custom cam will be your best bet.

Do not go that high on compression with stock cam unless you want to run race gas all the time.
Old 05-30-2009, 09:55 AM
  #18  
On The Tree
 
muayyadf1's Avatar
 
Join Date: Jan 2006
Posts: 182
Likes: 0
Received 0 Likes on 0 Posts

Default

Jason, Do you have some pics of PRC 5.3 heads?
Old 05-30-2009, 03:47 PM
  #19  
Launching!
iTrader: (30)
 
ls1itldo's Avatar
 
Join Date: Jul 2002
Location: Duncan, OK
Posts: 295
Likes: 0
Received 0 Likes on 0 Posts

Default

Why is it every thread with anything to do with TSP or PRC has willyfast, aintskeerd, and nitrous383 talking ****? Are you guys a competing shop or something? My prc heads flow more than advertised and pushed my vette past 1000rwhp with turbos. Not to mention when my reluctor wheel moved on my crank and fireslotted my old heads the tsp guys built me a replacement head set for dirt cheap.

Last edited by -Joseph-; 05-30-2009 at 03:54 PM.
Old 05-30-2009, 06:35 PM
  #20  
Launching!
iTrader: (11)
 
cellulis44's Avatar
 
Join Date: Sep 2007
Location: Virginia
Posts: 226
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Bo White
My name shouldnt be in a list of that calibur. Im retired anyway, thanx though.
I'm not trying to to get you business or advertise for you (although you are a sponsor...).

dont be so modest, you do unreal work.. I've seen them. A friend used to run a set of your 5.3's.... very admirable work.


Quick Reply: Prc stage 2.5 5.3 heads or prc stage 1 ls6 heads



All times are GMT -5. The time now is 10:38 PM.