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

LQ4 Potential PTV Clearance Issues

Thread Tools
 
Search this Thread
 
Old Sep 16, 2018 | 01:35 PM
  #1  
oreobadr's Avatar
Thread Starter
Teching In
 
Joined: Sep 2014
Posts: 49
Likes: 0
Default LQ4 Potential PTV Clearance Issues

Hey Guys,

I bought a turbo cam a while back and was thinking I might have potential PTV clearance issues. Here is the setup.

2004 LQ4, slight dish
LSA heads, unmilled
LS9 head gaskets
Lift:
0.610" intake
0.593 exhaust
LSA 115
Cam advance is 5 degrees
Duration
Intake: 235
Exhaust: 242


Thoughts?
Reply
Old Sep 16, 2018 | 02:25 PM
  #2  
Che70velle's Avatar
ModSquad
10 Year Member
Community Builder
Liked
Loved
iTrader: (6)
 
Joined: Jan 2012
Posts: 7,853
Likes: 5,205
From: Dawsonville Ga.
Default

If your asking about PTV, you’ll have to check it. No way without the correct software, that anyone could guess it for you. And even if I had the software, I wouldn’t trust it if it were close. When in doubt, check the PTV. Takes all of 30 minutes, if the heads are off.
Reply
Old Sep 16, 2018 | 03:33 PM
  #3  
98CayenneT/A's Avatar
TECH Junkie
10 Year Member
Photogenic
Liked
Loved
 
Joined: Nov 2013
Posts: 3,913
Likes: 366
From: White Bear, Mn
Default

Originally Posted by Che70velle
If your asking about PTV, you’ll have to check it. No way without the correct software, that anyone could guess it for you. And even if I had the software, I wouldn’t trust it if it were close. When in doubt, check the PTV. Takes all of 30 minutes, if the heads are off.
Can also check ptv with the heads on.
https://ls1tech.com/forums/generatio...ve-method.html
Reply




All times are GMT -5. The time now is 11:32 PM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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