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

should i flycut the intake and exhaust?

Thread Tools
 
Search this Thread
 
Old Nov 1, 2004 | 01:16 AM
  #1  
pdd's Avatar
pdd
Thread Starter
TECH Veteran
iTrader: (3)
 
Joined: Aug 2003
Posts: 4,156
Likes: 0
From: dudley mass
Default should i flycut the intake and exhaust?

or just the intake? having my afr's milled to 60cc. this is with my fm11 cam and a .045 cometic head gasket
Reply
Old Nov 1, 2004 | 05:36 PM
  #2  
Beast96Z's Avatar
TECH Veteran
iTrader: (21)
 
Joined: Apr 2003
Posts: 4,049
Likes: 3
From: Shreveport, LA
Default

It's always best to measure. You might not have to cut either. You certainlly don't want to cut what you don't have to. It can effect the integrity of the piston to a minor extent and more importantlly, you don't want to lower your compression more than neccisary.
Reply
Old Nov 1, 2004 | 06:28 PM
  #3  
Viper's Avatar
12 Second Club
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (6)
 
Joined: Dec 2001
Posts: 4,909
Likes: 3
From: Cleveland, OH
Default

pdd,

After reading of some of your issues the last few weeks, why not pay someone to professionally degree your cam and set the proper quench height? They can also measure for you and do the work to get the best out of your combination. You'll already have the heads off. For an extra couple of hundred, a local shop could port match your intake too while milling the heads.

Just a thought, my $.02.
Reply
Old Nov 1, 2004 | 07:29 PM
  #4  
pdd's Avatar
pdd
Thread Starter
TECH Veteran
iTrader: (3)
 
Joined: Aug 2003
Posts: 4,156
Likes: 0
From: dudley mass
Default

Originally Posted by Viper
pdd,

After reading of some of your issues the last few weeks, why not pay someone to professionally degree your cam and set the proper quench height? They can also measure for you and do the work to get the best out of your combination. You'll already have the heads off. For an extra couple of hundred, a local shop could port match your intake too while milling the heads.

Just a thought, my $.02.
I have my quench figured out and i am having the heads milled and port matched by TEA. Besides all the work thats been done to my car besdies dyno tuning and head work, I did.

Last edited by pdd; Nov 1, 2004 at 07:35 PM.
Reply
Old Nov 1, 2004 | 07:37 PM
  #5  
pdd's Avatar
pdd
Thread Starter
TECH Veteran
iTrader: (3)
 
Joined: Aug 2003
Posts: 4,156
Likes: 0
From: dudley mass
Default

Originally Posted by Beast96Z
and more importantlly, you don't want to lower your compression more than neccisary.
thats why im having the heads milled to 60cc. with the flycuts adding 2 to 3cc ill be back around 11:1
Reply
Old Nov 1, 2004 | 08:03 PM
  #6  
Viper's Avatar
12 Second Club
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (6)
 
Joined: Dec 2001
Posts: 4,909
Likes: 3
From: Cleveland, OH
Default

Cool, glad to hear you're getting the combo matched.
Reply
Old Nov 1, 2004 | 08:34 PM
  #7  
pdd's Avatar
pdd
Thread Starter
TECH Veteran
iTrader: (3)
 
Joined: Aug 2003
Posts: 4,156
Likes: 0
From: dudley mass
Default

im dyin too see what or if a diffence will be with the proper setup. crossing all the "i's" and "T's". any1 else with an opinion on the flycutting???
Reply
Old Nov 1, 2004 | 09:28 PM
  #8  
jpz06's Avatar
Teching In
 
Joined: Aug 2003
Posts: 36
Likes: 0
Default

I don't know about anyone else, but when I'm spinning that Lg cam to 7k and I'm rowing through the gears the last thing I want on my mind is the thought of my valves slapping the pistons. It's not that big of a deal to cut them.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Verdad Gallardo
story-1

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

 Pouria Savadkouei
story-2

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

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

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

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Nov 1, 2004 | 10:59 PM
  #9  
Slowhawk's Avatar
LS1Tech Sponsor
iTrader: (12)
 
Joined: Nov 2001
Posts: 14,865
Likes: 6
From: Bridgewater,Ma
Default

I wouldn't cut anything unless it is needed.These pistons are pretty thin to start with.The best thing to do is check the clearence first and go from there.Also make sure you use the right cutter/head to line the valve reliefs perfect with the valve's.

On another note don't forget to port match the intake and clean up all the flashing inside the runners
Reply




All times are GMT -5. The time now is 05:21 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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