Go Back   Corvette Forum > C5 Corvettes, 1997 - 2004 > C5 Tech
Sign in using an external account
Register Forgot Password?
Register Search Today's Posts Mark Forums Read FAQ Vendor Directory
Search
C5 Tech
Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace Sponsored by
Karl Chevrolet

Welcome to Corvetteforum.com!
Welcome to Corvetteforum.com.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, join Corvetteforum.com today!


Corvette Store
 
 
C7 Parts & Accessories
C6 Parts & Accessories
C5 Parts & Accessories
C4 Parts & Accessories
C3 Parts & Accessories
C2 Parts & Accessories
C1 Parts & Accessories
Wheels & Tires
Sponsored Ads
 
 
Vendor Directory
  
Reply
 
 
 
 
Thread Tools Search this Thread
Old 01-28-2013, 12:01 AM   #1
rttmike
CF Senior Member
 
rttmike's Avatar
 
Member Since: Oct 2011
Location: Mukwonago Wi
Default LS1 With TSP 233/239 112 lsa cam. What heads?

Car has 853's now. I want to have it tuned but I want to do it after it's done. As it sits now the car has cam, LT's, gutted cats, X pipe, CAI, polished TB. Not really happy with the 370 RWHP dyno numbers. Any advice on what heads I should be looking for? Budget is in mind as well.
rttmike is offline   Reply With Quote
Old 01-28-2013, 12:02 AM   #2
rttmike
CF Senior Member
 
rttmike's Avatar
 
Member Since: Oct 2011
Location: Mukwonago Wi
Default

The car is a 99 FRC LS1 car
rttmike is offline   Reply With Quote
Old 01-28-2013, 12:07 AM   #3
NukeC5
CF Senior Member
 
NukeC5's Avatar
 
Member Since: Jun 2012
Location: Oceanside California
Default

What kind of dyno did you run on? Ya, those heads are robbing allot of power if you only made that much with a cam that big! Ported 243's are usually the budget route and are sufficient for some good numbers.
NukeC5 is offline   Reply With Quote
Old 01-28-2013, 12:13 AM   #4
rttmike
CF Senior Member
 
rttmike's Avatar
 
Member Since: Oct 2011
Location: Mukwonago Wi
Default

I need to be honest, I am unsure. This was done by the previous owner. I just got the car.
rttmike is offline   Reply With Quote
Old 01-28-2013, 12:40 AM   #5
sami85L98
CF Senior Member
 
sami85L98's Avatar
 
Member Since: Apr 2005
Location: Scarborough ONTARIO
Default

I have 243 heads lloyd elliot hand ported stage 2 heads with dual valve springs milled 2 though...62cc that should be great for ya, mine is SC and i would like to go 317 heads to reduce compression...heads have 2.04/1.6 valves on it. just refresh those cleaned up and ready to bolt on...i can $850 shipped. let me know.

370 is on low side for sure but i can tell you, i would go with better heads than Cam.

Last edited by sami85L98; 01-28-2013 at 12:46 AM.
sami85L98 is offline   Reply With Quote
Old 01-28-2013, 08:32 AM   #6
nullpointer
CF Senior Member
 
nullpointer's Avatar
 
Member Since: Mar 2011
Location: East Aurora NY
Default

Another option would be pick up a set of used 243 heads and send them to Advanced Induction to be CNC ported. Mine had great results, or look for a set of used TFS heads.
nullpointer is offline   Reply With Quote
Old 01-28-2013, 08:54 AM   #7
rttmike
CF Senior Member
 
rttmike's Avatar
 
Member Since: Oct 2011
Location: Mukwonago Wi
Default

Sami, I wish I was ready to pull the trigger.

Correct me if I am wrong, 799's are the same as 243's?
rttmike is offline   Reply With Quote
Old 01-28-2013, 08:55 AM   #8
rttmike
CF Senior Member
 
rttmike's Avatar
 
Member Since: Oct 2011
Location: Mukwonago Wi
Default

Is there anything to be gained by having my 853's worked a little bit?
rttmike is offline   Reply With Quote
Old 01-28-2013, 11:04 AM   #9
NukeC5
CF Senior Member
 
NukeC5's Avatar
 
Member Since: Jun 2012
Location: Oceanside California
Default

Quote:
Originally Posted by rttmike View Post
Sami, I wish I was ready to pull the trigger.

Correct me if I am wrong, 799's are the same as 243's?
Yes, 799 are the same casting. But they are similar to LS2 234 heads, not to LS6 243 heads with light weight valves. Either are a good choice.

Quote:
Originally Posted by rttmike View Post
Is there anything to be gained by having my 853's worked a little bit?
Ive heard that ported 853's can be made to flow slightly better than an un-touched set of 243's, but then you are still limiting yourself, because at your level, people go for ported 243's or aftermarket to make use of the cam. Ported 243's would obviously flow way better than ported 853's and benefit you far more.
NukeC5 is offline   Reply With Quote
Old 01-28-2013, 05:49 PM   #10
sean.b
CF Senior Member
 
sean.b's Avatar
 
Member Since: Feb 2010
Location: Harvest AL
Default

Quote:
Originally Posted by rttmike View Post
Is there anything to be gained by having my 853's worked a little bit?
i gotta agree with Nuke. If you do the work yourself or have a buddy at a machine shop, awesome, otherwise save the $$ and put it towards some 243s at a minimum. PRC's would be a little better and a little more. AFR 205's would be a lot better and a good bit more. TEA/TFS would be up there with AFR, maybe even better, and a lot more.

Bang for buck is with the 243/799 and a little work. Can keep it under $1k and pick up some good numbers.
sean.b is online now   Reply With Quote
Old 01-28-2013, 08:55 PM   #11
printmanjackson
CF Senior Member
St. Jude Donor '06-'07-'08-'09
 
printmanjackson's Avatar
 
Member Since: Jul 2005
Location: Jackson Tn
Neal Maners
Default

Advanced Induction has great program that doesn't cost as much as a full CNC job. It's a known fact that the exhaust ports really hold back on power. What they do a full exhaust CNC port, 5 angle valve job on their Newen valve machine, do some hand blending on both bowls, mill the heads to 62cc chambers and set up your valve springs. This way you keep the low in torque and responce by not cutting the intake ports and you get the increased HP from the valve work and exhaust. Here is the flow numbers that were sent to me on my 243 heads.

Click the image to open in full size.
printmanjackson is offline   Reply With Quote
Old 01-29-2013, 11:12 AM   #12
Jason 98 TA
Premium Supporting Vendor
 
Jason 98 TA's Avatar
 
Member Since: Dec 1999
Location: Texas Speed TX
Send a message via AIM to Jason 98 TA
Default

Give us a call, we have tons of different options at all kinds of different price levels! We also offer milling based on your cam specs to give you the best possible gains for the $$$!!

We just ideally need to discuss the car & goals so we can best select a head to meet your goals!
Jason 98 TA is offline   Reply With Quote
Old 01-29-2013, 11:12 AM
 
Go Back   Corvette Forum > C5 Corvettes, 1997 - 2004 > C5 Tech
Reload this Page LS1 With TSP 233/239 112 lsa cam. What heads?
 
 
 
Reply


Thread Tools Search this Thread
Search this Thread:

Click for Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
lsx454 cam in ls7 ian08 C6 Z06 Discussion 1 08-06-2014 05:12 PM
Heads and cam for FI litlez302 C6 Forced Induction/Nitrous 4 07-10-2014 08:30 AM
Cam install; before and after numbers? Gmzo6 C5 Tech 5 02-19-2013 06:50 PM
cam m kraz C6 Tech/Performance 8 12-05-2012 10:43 PM
doing a cam.... 09REAPER C6 Corvette General Discussion 22 11-20-2012 12:37 AM


All times are GMT -4. The time now is 08:53 PM.


Emails & Password Backup