LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Do the head have to come off?

Thread Tools
 
Search this Thread
 
Old Feb 10, 2012 | 10:06 AM
  #1  
chris95lt1ta's Avatar
Thread Starter
Launching!
 
Joined: Oct 2010
Posts: 240
Likes: 0
Default Do the head have to come off?

When replacing rocker arms, valve springs, valve seals and the retainers, do the heads have to come off?
Reply
Old Feb 10, 2012 | 10:09 AM
  #2  
RamAir95TA's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: May 2005
Posts: 9,467
Likes: 8
From: South Jersey
Default

No, they can stay on for all of that. Taking them off makes the job MUCH easier though.
Reply
Old Feb 10, 2012 | 10:11 AM
  #3  
chris95lt1ta's Avatar
Thread Starter
Launching!
 
Joined: Oct 2010
Posts: 240
Likes: 0
Default

Hell its a pain in the *** to get them off though.
Reply
Old Feb 10, 2012 | 10:13 AM
  #4  
chris95lt1ta's Avatar
Thread Starter
Launching!
 
Joined: Oct 2010
Posts: 240
Likes: 0
Default

I had the heads off 2 months ago replacing the head gasket so I dont want to take them off if I dont have to.
Reply
Old Feb 10, 2012 | 11:07 AM
  #5  
nitrous2fast's Avatar
TECH Fanatic
iTrader: (2)
 
Joined: Dec 2010
Posts: 1,084
Likes: 0
From: Oklahoma
Default

just pull everything out from the bottom and it makes doing anything much faster.
Reply
Old Feb 10, 2012 | 11:17 AM
  #6  
wrd1972's Avatar
TECH Veteran
20 Year Member
Photogenic
Photoriffic
iTrader: (12)
 
Joined: Mar 2006
Posts: 4,668
Likes: 5
From: Central Kentucky
Default

Originally Posted by RamAir95TA
No, they can stay on for all of that. Taking them off makes the job MUCH easier though.
In all fairness lets clarify this statement.

If there is a need to remove the heads, for whatever reason, then yes do the seals, springs, etc. with them sitting on the bench. Much easier to do that way.
If there is no need to pull the heads from the engine, then do the work with the heads on the engine becasue pulling the heads means a ton more work, time and expense. There is no need to pull the heads to perform the above work.

FWIW I and most others can easily do all this in about three hours without having to push.
Reply
Old Feb 10, 2012 | 12:01 PM
  #7  
chris95lt1ta's Avatar
Thread Starter
Launching!
 
Joined: Oct 2010
Posts: 240
Likes: 0
Default

Lol ok well it took me and a buddy bout a week to do the head gaskets. But thats was while i was at work doing other cars. (I work at jiffy lube)
Reply
Old Feb 10, 2012 | 12:58 PM
  #8  
quik95lt1's Avatar
9 Second Club
iTrader: (7)
 
Joined: Dec 2008
Posts: 4,464
Likes: 12
From: Rhode Island
Default

dont have to pull them off.....that can be done in the car in a day......pressurize the cylinders with air and swap em out...........
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 Feb 10, 2012 | 01:01 PM
  #9  
Lawhead's Avatar
10 Second Club
10 Year Member
iTrader: (14)
 
Joined: Aug 2010
Posts: 2,397
Likes: 2
From: \
Default

Originally Posted by quik95lt1
dont have to pull them off.....that can be done in the car in a day......pressurize the cylinders with air and swap em out...........
I did it you don't even need to pressurize the cylinders just get them at TDC and you will be good
Reply
Old Feb 10, 2012 | 01:06 PM
  #10  
bowtienut's Avatar
TECH Fanatic
15 Year Member
iTrader: (1)
 
Joined: Mar 2007
Posts: 1,685
Likes: 5
From: Bright, IN
Default

Originally Posted by Lawhead
I did it you don't even need to pressurize the cylinders just get them at TDC and you will be good
/\ /\ That's my method /\ /\
Reply
Old Feb 10, 2012 | 01:37 PM
  #11  
wrd1972's Avatar
TECH Veteran
20 Year Member
Photogenic
Photoriffic
iTrader: (12)
 
Joined: Mar 2006
Posts: 4,668
Likes: 5
From: Central Kentucky
Default

Originally Posted by Lawhead
I did it you don't even need to pressurize the cylinders just get them at TDC and you will be good

Originally Posted by bowtienut
/\ /\ That's my method /\ /\


The valves cant drop and fall free into the cylinders, they are too long. As long as you are clode to TDC, your good to go and if for some reason it drop into the guide, get the magnetic retriever or slowly crank the motor over by HAND.
Reply
Old Feb 10, 2012 | 01:41 PM
  #12  
gregrob's Avatar
TECH Senior Member
iTrader: (8)
 
Joined: Sep 2008
Posts: 5,130
Likes: 4
From: 6,000+ feet
Default

TDC method F T W

Get yourself a Tim's tool as well...
Reply
Old Feb 10, 2012 | 01:54 PM
  #13  
quik95lt1's Avatar
9 Second Club
iTrader: (7)
 
Joined: Dec 2008
Posts: 4,464
Likes: 12
From: Rhode Island
Default

yea i put them at tdc just incase the air goes away but its nice cause it holds the valve all the way up in the seat.....dont have to compress the spring as far......
Reply
Old Feb 10, 2012 | 02:27 PM
  #14  
05HD's Avatar
TECH Fanatic
 
Joined: Feb 2006
Posts: 1,025
Likes: 1
From: CT/NJ
Default

Originally Posted by quik95lt1
yea i put them at tdc just incase the air goes away but its nice cause it holds the valve all the way up in the seat.....dont have to compress the spring as far......
^This makes it a lot easier reinstalling the locks when you are working with stiff springs.
Reply
Old Feb 10, 2012 | 05:06 PM
  #15  
spudnick3119's Avatar
TECH Apprentice
15 Year Member
 
Joined: Mar 2007
Posts: 313
Likes: 5
From: Eastern PA
Default

Originally Posted by gregrob
TDC method F T W

Get yourself a Tim's tool as well...
Forget the Tim's tool and get the Crane tool, maybe my Tim's tool was a lemon but I was not impressed...
Reply




All times are GMT -5. The time now is 03:51 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