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

Heads off. Noticed something.

Thread Tools
 
Search this Thread
 
Old Jul 18, 2006 | 11:23 AM
  #1  
ShevrolayZ28's Avatar
Thread Starter
TECH Addict
iTrader: (4)
 
Joined: May 2005
Posts: 2,318
Likes: 1
From: Massachusetts
Default Heads off. Noticed something.

Upon removing the passenger side head I found that the dowels were all way inside the head.

I don't see how this could happen unless the heads had been installed incorrectly, and I'm pretty sure this motor had never been apart.

Has anyone taken an LSx apart and found the dowels all the way into the heads, or all the way into the block?
Reply
Old Jul 18, 2006 | 11:29 AM
  #2  
ZR1 DREAMING's Avatar
TECH Senior Member
iTrader: (27)
 
Joined: Aug 2005
Posts: 8,241
Likes: 1
From: Ham Lake, MN
Default

I bumped one of mine in when I put my new heads on.
Is it possible you tapped it on accident while taking the stockers off?
Reply
Old Jul 18, 2006 | 11:32 AM
  #3  
GuitsBoy's Avatar
TECH Senior Member
iTrader: (4)
 
Joined: Apr 2003
Posts: 6,249
Likes: 3
From: Long Island, NY
Default

Im pretty sure the dowels should be longer than either hole is deep. That means it should always stick out atleast a little. When removing heads, sometime the dowel will stick in the block, sometimes in the head, but never have i see one all the way in one or the other.
Reply
Old Jul 18, 2006 | 11:44 AM
  #4  
ShevrolayZ28's Avatar
Thread Starter
TECH Addict
iTrader: (4)
 
Joined: May 2005
Posts: 2,318
Likes: 1
From: Massachusetts
Default

Originally Posted by Z06 DREAMING
I bumped one of mine in when I put my new heads on.
Is it possible you tapped it on accident while taking the stockers off?
ummm yeah, that's quite possible, and prolly exactly what happened. I was so excited removing parts that I didn't take note of where they were until later on. They could have been pushed in when I placed the head on the ground.

The dowels on the drivers side stayed in the block FWIW.

Guits, they are indeed flush with the heads gasket surface.

I haven't tried to remove them but I think I'll roll by the Stealership and order a few new ones.
Reply
Old Jul 18, 2006 | 11:46 AM
  #5  
ZR1 DREAMING's Avatar
TECH Senior Member
iTrader: (27)
 
Joined: Aug 2005
Posts: 8,241
Likes: 1
From: Ham Lake, MN
Default

Originally Posted by GuitsBoy
Im pretty sure the dowels should be longer than either hole is deep. That means it should always stick out atleast a little.
They're not and they don't.
Reply
Old Jul 18, 2006 | 11:47 AM
  #6  
GuitsBoy's Avatar
TECH Senior Member
iTrader: (4)
 
Joined: Apr 2003
Posts: 6,249
Likes: 3
From: Long Island, NY
Default

Thats very strange... Are the dowels about a half inch long? I didnt think the hole in the head for the dowel was any deeper than 3/8 maybe... and the hole in the block was around 5/16 or so, If I recall.

I remember glancing at it to make sure i wouldnt bottom out when I milled the heads down...
Reply
Old Jul 18, 2006 | 11:53 AM
  #7  
GuitsBoy's Avatar
TECH Senior Member
iTrader: (4)
 
Joined: Apr 2003
Posts: 6,249
Likes: 3
From: Long Island, NY
Default

Originally Posted by Z06 DREAMING
They're not and they don't.
This is all news to me... Im going to go home and take a look after work. I have a couple pairs of 241's sitting on a shelf. I also have a couple of old dowels from my motor. Maybe Im remembering things a little differently than they really are. Maybe im picturing a different motor.
Reply
Old Jul 18, 2006 | 11:56 AM
  #8  
ShevrolayZ28's Avatar
Thread Starter
TECH Addict
iTrader: (4)
 
Joined: May 2005
Posts: 2,318
Likes: 1
From: Massachusetts
Default

These dowels must be made of precious metal. They go for $6.50 each! lol fawking Stealership!

The good news is, the Caddy dealer a few miles away has them in stock.

Guits, fwiw, my car had 241's on it.
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 Jul 18, 2006 | 12:20 PM
  #9  
LS1-450's Avatar
TECH Junkie
iTrader: (33)
 
Joined: Aug 2005
Posts: 3,783
Likes: 9
Default

Originally Posted by Z06 DREAMING
They're not and they don't.
Ditto.
Reply




All times are GMT -5. The time now is 09:17 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