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

should i rebuild the engine?

Thread Tools
 
Search this Thread
 
Old Aug 12, 2010 | 03:58 PM
  #1  
ryanosborne's Avatar
Thread Starter
On The Tree
 
Joined: Jun 2010
Posts: 161
Likes: 0
Default should i rebuild the engine?

ok so i original plan is to get a rebuild kit for my lt1 and a complete cam kit from ai. but i was told these engines are good for up to 300,000 kms . it for 120, 000 kms. what do you guys think? should i go ahead and get a rebuild kit while i get the cam kit and transmission rebuild kit and im also gettin headers
Reply
Old Aug 12, 2010 | 04:07 PM
  #2  
94redz28's Avatar
11 Second Club
iTrader: (12)
 
Joined: Oct 2004
Posts: 224
Likes: 0
From: SW Missouri
Default

I would check the front cam bearing and see if its wore out if you have the timing cover off.
Reply
Old Aug 12, 2010 | 04:09 PM
  #3  
RamAir95TA's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: May 2005
Posts: 9,467
Likes: 8
From: South Jersey
Default

What makes you think it needs to be rebuilt anyway?
Reply
Old Aug 12, 2010 | 10:02 PM
  #4  
ryanosborne's Avatar
Thread Starter
On The Tree
 
Joined: Jun 2010
Posts: 161
Likes: 0
Default

Originally Posted by RamAir95TA
What makes you think it needs to be rebuilt anyway?
because a few people owned it before i did and i know the engine has been over heated badly a few times because they didnt know there was a manual switch to turn on the rad fan and i figured if i was getting a cam kit and a rebuild kit for the transmission and a new timing set and opti and headers i may as well get the engine done to but what do you guys think? i know the opti is bad because someone got it wet before and the car sputters and works terrible for the first few minutes you drive it and it hesitates sometimes but once you drive it for a few minutes it works great but i want it to work better and have more power
Reply
Old Aug 12, 2010 | 10:33 PM
  #5  
RamAir95TA's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: May 2005
Posts: 9,467
Likes: 8
From: South Jersey
Default

IMO, if it has good oil pressure and good compression, there's no real reason to spend the money, unless it's something you would feel is worthwhile doing. How many miles are on the short block?
Reply
Old Aug 12, 2010 | 11:10 PM
  #6  
ryanosborne's Avatar
Thread Starter
On The Tree
 
Joined: Jun 2010
Posts: 161
Likes: 0
Default

Originally Posted by RamAir95TA
IMO, if it has good oil pressure and good compression, there's no real reason to spend the money, unless it's something you would feel is worthwhile doing. How many miles are on the short block?
120,000 kilometers. oil pressure is good. how much of a difference will it have if i dont re do the engine but get the cam kit from ai and replace the timing set and opti and get headers
Reply
Old Aug 12, 2010 | 11:32 PM
  #7  
slomarao's Avatar
TECH Fanatic
iTrader: (6)
 
Joined: Dec 2007
Posts: 1,147
Likes: 0
From: chicago,IL
Default

when you do something like a cam with that many miles you run the risk of rebuilding the motor. The extra rev's and the stock bearings dont mix.
Reply
Old Aug 12, 2010 | 11:36 PM
  #8  
ryanosborne's Avatar
Thread Starter
On The Tree
 
Joined: Jun 2010
Posts: 161
Likes: 0
Default

Originally Posted by slomarao
when you do something like a cam with that many miles you run the risk of rebuilding the motor. The extra rev's and the stock bearings dont mix.
so i should rebuild with it all?
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 Aug 12, 2010 | 11:39 PM
  #9  
RamAir95TA's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: May 2005
Posts: 9,467
Likes: 8
From: South Jersey
Default

IMO, if it has good oil pressure and good compression, there's no real reason to spend the money, unless it's something you would feel is worthwhile doing.
Reply
Old Aug 12, 2010 | 11:54 PM
  #10  
ryanosborne's Avatar
Thread Starter
On The Tree
 
Joined: Jun 2010
Posts: 161
Likes: 0
Default

Originally Posted by RamAir95TA
IMO, if it has good oil pressure and good compression, there's no real reason to spend the money, unless it's something you would feel is worthwhile doing.
makes perfect sense to me, i dont really want to spend the money if i dont need to.
Reply
Old Aug 13, 2010 | 03:34 PM
  #11  
ryanosborne's Avatar
Thread Starter
On The Tree
 
Joined: Jun 2010
Posts: 161
Likes: 0
Default

so what should my compression be at and whats the best procedure to check it?
Reply
Old Aug 13, 2010 | 09:30 PM
  #12  
RamAir95TA's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: May 2005
Posts: 9,467
Likes: 8
From: South Jersey
Default

You need to do a compression test with a compression test gauge. Your readings should be within 10% of eachother with no cylinder significantly lower than the rest.
Reply
Old Aug 13, 2010 | 09:58 PM
  #13  
ryanosborne's Avatar
Thread Starter
On The Tree
 
Joined: Jun 2010
Posts: 161
Likes: 0
Default

Originally Posted by RamAir95TA
You need to do a compression test with a compression test gauge. Your readings should be within 10% of eachother with no cylinder significantly lower than the rest.
i know that but do i remove all the plugs put the guage in one hole and turn the key while there are no plugs in it and thats it?
Reply
Old Aug 13, 2010 | 09:59 PM
  #14  
RamAir95TA's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: May 2005
Posts: 9,467
Likes: 8
From: South Jersey
Default

http://autorepair.about.com/od/engin...press_test.htm
Reply
Old Aug 14, 2010 | 03:55 AM
  #15  
ryanosborne's Avatar
Thread Starter
On The Tree
 
Joined: Jun 2010
Posts: 161
Likes: 0
Default

perfect
Reply
Old Aug 14, 2010 | 09:19 PM
  #16  
ryanosborne's Avatar
Thread Starter
On The Tree
 
Joined: Jun 2010
Posts: 161
Likes: 0
Default

anyone else have their opinion on if i should or not? how many kms are these engines usually good for?
Reply
Old Aug 15, 2010 | 10:47 PM
  #17  
ryanosborne's Avatar
Thread Starter
On The Tree
 
Joined: Jun 2010
Posts: 161
Likes: 0
Default

compression in all cylinders where between 175 and 190
Reply
Old Aug 15, 2010 | 10:57 PM
  #18  
RamAir95TA's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: May 2005
Posts: 9,467
Likes: 8
From: South Jersey
Default

Those numbers are good. I wouldn't hesitate to do a cam swap or equivalent.
Reply
Old Aug 15, 2010 | 11:24 PM
  #19  
rangerguy's Avatar
Registered User
 
Joined: Aug 2010
Posts: 16
Likes: 0
From: NC
Default

If it ain't broke don't fix it!!! Good oil pressure, good compression, no major leaks, your good!!
Reply
Old Aug 15, 2010 | 11:27 PM
  #20  
ryanosborne's Avatar
Thread Starter
On The Tree
 
Joined: Jun 2010
Posts: 161
Likes: 0
Default

perfect, ill be sending out my money order tomorrow to ai for my cam kit, timing set, and opti.
Reply




All times are GMT -5. The time now is 12:54 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