LS1TECH - Camaro and Firebird Forum Discussion

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

What should my PTV clearance be

Thread Tools
 
Search this Thread
 
Old Jul 14, 2007 | 11:44 PM
Share
  #1  
Summit2345's Avatar
Summit2345
Thread Starter
Launching!
iTrader: (2)
 
Joined: Mar 2006
Posts: 261
Likes: 0
From: West Virginia
Default What should my PTV clearance be
I'm getting ready to put heads on my car and need to know what kind of PTV clearance I need for my set up. My Setup is a Tourqer 2 with a set of LS6 heads decked .030, and I'm running factory head gaskets. Also is the 7.4 push rods I have going to work also?
Reply
0
Old Jul 15, 2007 | 12:10 AM
Share
  #2  
LS1rulz's Avatar
LS1rulz
TECH Regular
iTrader: (1)
 
Joined: Nov 2006
Posts: 439
Likes: 0
From: Greenup, Kentucky
Default
Generally accepted rule of thumb:
At least
0.080" intake side
0.100" exhaust side
Reply
0
Old Jul 15, 2007 | 01:47 AM
Share
  #3  
PREDATOR-Z's Avatar
PREDATOR-Z
TECH Senior Member
 
Joined: Mar 2004
Posts: 14,620
Likes: 17
From: BFE
Default
More info on heads needed. .030= 5cc, then better check you PTV
Also what is the LSA and advance (ICL) in this TV2?
Reply
0
Old Jul 15, 2007 | 11:41 AM
Share
  #4  
Summit2345's Avatar
Summit2345
Thread Starter
Launching!
iTrader: (2)
 
Joined: Mar 2006
Posts: 261
Likes: 0
From: West Virginia
Default
Originally Posted by PREDATOR-Z
More info on heads needed. .030= 5cc, then better check you PTV
Also what is the LSA and advance (ICL) in this TV2?
The heads are set of Livernois Stage one LS6 heads. The LSA is 112, and Im not totally sure on what ICL is, but I do know that the cam was installed straight up dot to dot no advance.
Reply
0
Old Jul 15, 2007 | 02:38 PM
Share
  #5  
redtail2426's Avatar
redtail2426
TECH Fanatic
iTrader: (10)
 
Joined: Aug 2004
Posts: 1,433
Likes: 0
From: Rochester,Ny
Default
it will be close.I have ls6 heads milled .018",cometic .045 gaskets and a 228/230 on xe lobes and a 112 lsa and i have about .085 intake and .135 exhaust.just check it
Reply
0
Old Jul 15, 2007 | 03:25 PM
Share
  #6  
Summit2345's Avatar
Summit2345
Thread Starter
Launching!
iTrader: (2)
 
Joined: Mar 2006
Posts: 261
Likes: 0
From: West Virginia
Default
Originally Posted by redtail2426
it will be close.I have ls6 heads milled .018",cometic .045 gaskets and a 228/230 on xe lobes and a 112 lsa and i have about .085 intake and .135 exhaust.just check it
Yea I plan on checking it no matter what, but I was just curious what everybody's thoughts where
Reply
0
Old Jul 15, 2007 | 11:57 PM
Share
  #7  
PREDATOR-Z's Avatar
PREDATOR-Z
TECH Senior Member
 
Joined: Mar 2004
Posts: 14,620
Likes: 17
From: BFE
Default
Bigger valves on the heads?
Reply
0

Trending Topics

Old Jul 16, 2007 | 04:58 PM
Share
  #8  
Summit2345's Avatar
Summit2345
Thread Starter
Launching!
iTrader: (2)
 
Joined: Mar 2006
Posts: 261
Likes: 0
From: West Virginia
Default
Originally Posted by PREDATOR-Z
Bigger valves on the heads?
there stock valves
Reply
0
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-1

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-2

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-3

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

 Verdad Gallardo
story-4

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

 Pouria Savadkouei
story-5

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

 Verdad Gallardo
story-6

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-7

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-8

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-9

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

 Verdad Gallardo
Old Jul 16, 2007 | 05:26 PM
Share
  #9  
Summit2345's Avatar
Summit2345
Thread Starter
Launching!
iTrader: (2)
 
Joined: Mar 2006
Posts: 261
Likes: 0
From: West Virginia
Default
Originally Posted by PREDATOR-Z
Bigger valves on the heads?
here is what they are

CNC Ported Stage 1 GM LS2/LS6 Cylinder Heads


New GM LS2/LS6 243 casting
5 axis CNC machined
Fully assembled
220cc Intake Runner
Intake Flow Rate 305 CFM
Exhaust Flow Rate 235 CFM
New 2.000 intake valves / 1.550 exhaust valves
GM Valve Seals, Retainers, and Locks
Reply
0
Old Jul 17, 2007 | 09:50 AM
Share
  #10  
PREDATOR-Z's Avatar
PREDATOR-Z
TECH Senior Member
 
Joined: Mar 2004
Posts: 14,620
Likes: 17
From: BFE
Default
It "should" fit with stock gasket. But better measure.
Reply
0
Old Jul 17, 2007 | 10:55 AM
Share
  #11  
Summit2345's Avatar
Summit2345
Thread Starter
Launching!
iTrader: (2)
 
Joined: Mar 2006
Posts: 261
Likes: 0
From: West Virginia
Default
Originally Posted by PREDATOR-Z
It "should" fit with stock gasket. But better measure.
Thanks man thats what I was wanting to hear, but I will still check no matter what. Greatly appreciated
Reply
0
Back to Subforum
Generation III Internal Engine
View Next Unread
Which Plugs




Advanced Search

All times are GMT -5. The time now is 06:49 AM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-3
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-4
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-5
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-6
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-7
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-8
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-9
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