Generation IV Internal Engine 2005-2014 LS2 | LS3 | LS7 | L92 | LS9

PTV clearance

Old Oct 31, 2011 | 03:39 AM
  #1  
1badeagle's Avatar
Thread Starter
TECH Regular
iTrader: (9)
 
Joined: Dec 2007
Posts: 460
Likes: 0
From: Ohio
Default PTV clearance

I was wondering if anyone knew how far I can have my LS3 heads milled down while being ported. I am running a LQ4 block with Mahle .030 L92 pistons and stock thickness head gasket. I am running a G6X3 camshaft in this motor. Just curious if anyone knew how much I could mill them. My goal is to get 11.3-1 or so compression out of the motor with just some milling.


Thanks,

Dustin
Reply
Old Oct 31, 2011 | 12:06 PM
  #2  
briancb1's Avatar
Launching!
 
Joined: Nov 2010
Posts: 251
Likes: 0
Default

You should be alright with those pistons but you can double check upon assembly.
Reply
Old Nov 3, 2011 | 11:47 AM
  #3  
Sales4@Texas-Speed's Avatar
LS1TECH & Trucks Sponsor
iTrader: (4)
 
Joined: Jan 2007
Posts: 1,768
Likes: 9
Default

If the pistons have a valve relief for L92 heads then you can mill them as much as you want. Valve reliefs on these motors typically give you more then enough room to do whatever you need heads/cam wise.
Reply
Old Nov 3, 2011 | 07:16 PM
  #4  
1badeagle's Avatar
Thread Starter
TECH Regular
iTrader: (9)
 
Joined: Dec 2007
Posts: 460
Likes: 0
From: Ohio
Default

Originally Posted by JohnJanz@Texas-Speed
If the pistons have a valve relief for L92 heads then you can mill them as much as you want. Valve reliefs on these motors typically give you more then enough room to do whatever you need heads/cam wise.
Thanks John, that's exactly what I wanted to hear.

Any idea on a power idea on this set up?

04 lq4
4.030 l92 style pistons
Eagle h beam 6.125 rods
Stock crank
Stock ls3 heads
11:1 compression
Tsp 231/236
Victor jr intake
Holley 750 dp


Do you sell a better cam for all out power on a carbed lq4/ls3 setup?
Reply


Thread Tools
Search this Thread

All times are GMT -5. The time now is 06:14 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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
story-8
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

The world was a better place when it was still around.

By Brett Foote | 2026-01-23 09:20:37


VIEW MORE
story-9
10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

Slideshow: The 7.0-liter LS7 was designed for absolute cutting-edge performance.

By Verdad Gallardo | 2026-01-07 18:36:00


VIEW MORE