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

P/V clearance

Thread Tools
 
Search this Thread
 
Old Jul 27, 2002 | 04:10 PM
  #1  
BYBYC5's Avatar
Thread Starter
*Bad Trader*
 
Joined: Nov 2001
Posts: 1,459
Likes: 0
From: here and there
Default P/V clearance

with 222/222 .595.595 111 and 5.7L heads i want 11.0-1 C/R what do i need to do, what valves to get and what are the biggest valves i can put into my heads without machining to fit. how much to mill and will i have p/c problems....
Reply
Old Jul 28, 2002 | 10:45 AM
  #2  
BYBYC5's Avatar
Thread Starter
*Bad Trader*
 
Joined: Nov 2001
Posts: 1,459
Likes: 0
From: here and there
Default Re: P/V clearance

ttt plz
Reply
Old Jul 28, 2002 | 03:43 PM
  #3  
DriveATransAm's Avatar
TECH Junkie
 
Joined: Nov 2001
Posts: 3,029
Likes: 0
From: Chi-Town
Default Re: P/V clearance

you can mill .040 to get about 11.1:1. im not sure about the valves though.
Reply
Old Jul 29, 2002 | 12:03 AM
  #4  
RedlineSS2000's Avatar
On The Tree
 
Joined: Jul 2002
Posts: 140
Likes: 0
From: Brazoria, Texas
Default Re: P/V clearance

hey grinch whats up you make it home all right. WE did. But anyways just incase you forgot 2.055 on the intake side and 1.60 on the exhaust side. I wouldnt mill the heads over .30 but with .30 you will get around 10:8:1 compression. Give me a call on my cell i am off this monday and we can talk about it on the phone. <img border="0" title="" alt="[Cool]" src="gr_images/icons/cool.gif" />
Reply
Old Jul 29, 2002 | 02:45 AM
  #5  
AlonzoVersion 1.0's Avatar
TECH Addict
 
Joined: Dec 2001
Posts: 2,340
Likes: 0
From: Fort Worth,TX
Default Re: P/V clearance

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Grinch:
<strong>with 222/222 .595.595 111 and 5.7L heads i want 11.0-1 C/R what do i need to do, what valves to get and what are the biggest valves i can put into my heads without machining to fit. how much to mill and will i have p/c problems....</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">2.02 on the intake and 1.56 on the exhaust.My heads are milled 30thous and you should be fine with that cam.Raughammer has his milled 60thous and runs a 224/224 581/581 112 bumpstick with no piston to valve issues.
Reply
Old Jul 29, 2002 | 07:44 AM
  #6  
Fireball's Avatar
TECH Senior Member
20 Year Member
iTrader: (21)
 
Joined: Nov 2001
Posts: 8,484
Likes: 0
From: Cecil County Raceway!!!
Default Re: P/V clearance

you should be fine...

I have .040 milled off of 5.3L heads with 2.02 valves and a 232/232 camshaft. I only had to notch .020 for that which is hardly nothing. a 230/230 probably wouldn't have needed anything <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
Reply




All times are GMT -5. The time now is 11:55 AM.

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