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

Is this the right Crank Bolt? (Pic)

Thread Tools
 
Search this Thread
 
Old Jul 28, 2005 | 04:23 PM
  #1  
BigBlockChev572's Avatar
Thread Starter
TECH Resident
iTrader: (7)
 
Joined: Jun 2004
Posts: 875
Likes: 0
Default Is this the right Crank Bolt? (Pic)

OK, I got the stock bolt, then I went and bought another one longer in length, M16 2.0 thread pitch 130MM. I'm hoping I bought the right one that you all have been using.

Thanks, Philip S.

Last edited by BigBlockChev572; Jul 28, 2005 at 05:51 PM.
Reply
Old Jul 28, 2005 | 05:25 PM
  #2  
Tally TransAm's Avatar
TECH Junkie
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (17)
 
Joined: Nov 2001
Posts: 3,406
Likes: 2
From: Tallahassee, Fl
Default

Reply
Old Jul 28, 2005 | 05:51 PM
  #3  
BigBlockChev572's Avatar
Thread Starter
TECH Resident
iTrader: (7)
 
Joined: Jun 2004
Posts: 875
Likes: 0
Default

My fault, I was having some difficulty with Photobucket so they were deleted. They're up now.
Philip S.
Reply
Old Jul 28, 2005 | 06:02 PM
  #4  
Tally TransAm's Avatar
TECH Junkie
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (17)
 
Joined: Nov 2001
Posts: 3,406
Likes: 2
From: Tallahassee, Fl
Default

looks good to me, just get a fat stack of washers to go over it
Reply
Old Jul 28, 2005 | 06:07 PM
  #5  
BigBlockChev572's Avatar
Thread Starter
TECH Resident
iTrader: (7)
 
Joined: Jun 2004
Posts: 875
Likes: 0
Default

Originally Posted by Tally TransAm
looks good to me, just get a fat stack of washers to go over it
Bear with me, I'm trying to think of the purpose washers would serve. I'm imagining a crank puller and the head of the bolt being pushed on as the pulley slides towards the puller. What's the purpsose of the washers?
Thanks,
Philip S.
Reply
Old Jul 28, 2005 | 06:31 PM
  #6  
Tally TransAm's Avatar
TECH Junkie
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (17)
 
Joined: Nov 2001
Posts: 3,406
Likes: 2
From: Tallahassee, Fl
Default

the washers are for reinstallation, which is the primary reason for the longer bolt.

the longer bolt lets you get more threads started when you are reinstalling the pulley which significant reduces the chance of cross threading or fubaring the crank threads. however the small head of the new bolt will go right through the pulley so you need large washers

basically i use like 2-3 large washers on the longer bolt to get the pulley on about 60-70% of the way, but then take the longer bolt out and use the old stock bolt on and finshed the installation normally
Reply
Old Jul 28, 2005 | 06:34 PM
  #7  
BigBlockChev572's Avatar
Thread Starter
TECH Resident
iTrader: (7)
 
Joined: Jun 2004
Posts: 875
Likes: 0
Default

Originally Posted by Tally TransAm
the washers are for reinstallation, which is the primary reason for the longer bolt.

the longer bolt lets you get more threads started when you are reinstalling the pulley which significant reduces the chance of cross threading or fubaring the crank threads. however the small head of the new bolt will go right through the pulley so you need large washers

basically i use like 2-3 large washers on the longer bolt to get the pulley on about 60-70% of the way, but then take the longer bolt out and use the old stock bolt on and finshed the installation normally
OH OK! Thanks! I was having an anurism just thinking of the purpose for pulling the pulley off! Thanks, yes, I gotcha!
Philip S.
Reply
Old Jul 28, 2005 | 06:35 PM
  #8  
T/A Medic's Avatar
TECH Resident
iTrader: (1)
 
Joined: May 2002
Posts: 859
Likes: 0
From: The Thin Air
Default

if you dont use a washer over the head of ur new bolt u are going to scrape ur crank balancer and dig into it... also should distribute the load across more surface area of the crank pully... not sure if that makes a big deal...

line up the threads on each bolt... if they sit in there really nice it is the same bolt thread.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

 Brett Foote
story-1

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-2

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-3

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-4

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

 Verdad Gallardo
story-5

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

 Pouria Savadkouei
story-6

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

 Verdad Gallardo
story-7

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-8

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-9

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo




All times are GMT -5. The time now is 01:19 PM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-1
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-2
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-3
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-4
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-5
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-6
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-7
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-8
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-9
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