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

Arp bolts problem

Thread Tools
 
Search this Thread
 
Old Dec 13, 2017 | 11:52 AM
  #1  
5.3silveradoblue's Avatar
Thread Starter
Teching In
 
Joined: Dec 2011
Posts: 14
Likes: 0
Default Arp bolts problem

I have a 1998 ls1 and doing hci.
i bought arp head bolts and the last 2 dont fit anyone ran into this problem before arp # 3609

Last edited by 5.3silveradoblue; Dec 13, 2017 at 11:57 AM.
Reply
Old Dec 13, 2017 | 12:10 PM
  #2  
Hardtop Brian's Avatar
10 Second Club
 
Joined: Oct 2015
Posts: 238
Likes: 5
From: Hillsdale, MI
Default

Where did you put the 2 shorter large bolts? I just used this kit on my 99.
Reply
Old Dec 13, 2017 | 12:16 PM
  #3  
Hardtop Brian's Avatar
10 Second Club
 
Joined: Oct 2015
Posts: 238
Likes: 5
From: Hillsdale, MI
Default


9 and 10 are shorter
Reply
Old Dec 13, 2017 | 12:44 PM
  #4  
G Atsma's Avatar
TECH Senior Member
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2016
Posts: 22,303
Likes: 3,619
From: Central Cal.
Default

Just checked the part#; he got the right kit. Thought at first he got the late kit with all same size bolts.
Reply
Old Dec 13, 2017 | 12:46 PM
  #5  
Hardtop Brian's Avatar
10 Second Club
 
Joined: Oct 2015
Posts: 238
Likes: 5
From: Hillsdale, MI
Default

Yeah, I could see that happening. I'm thinking he put them in without realizing there were a couple short ones in each head.

5.3 - the kit comes with 4 shorter bolts. Look at what you have left to determine how many you have used already and start taking bolts out until you find them. Then start over with your torque procedure.

Last edited by Hardtop Brian; Dec 13, 2017 at 01:01 PM.
Reply
Old Dec 13, 2017 | 06:47 PM
  #6  
5.3silveradoblue's Avatar
Thread Starter
Teching In
 
Joined: Dec 2011
Posts: 14
Likes: 0
Default

Tomorrow I’ll go to the shop and check
but if I am not mistaken the mechanic told me the treads are bigger
Reply
Old Dec 13, 2017 | 07:24 PM
  #7  
G Atsma's Avatar
TECH Senior Member
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2016
Posts: 22,303
Likes: 3,619
From: Central Cal.
Default

If you got the right kit for the engine you have the threads will be JUST RIGHT!
You will have 8 long bolts, 2 short bolts, and 5 smaller bolts for the top row. ARP does not mess things like that up. Your mechanic might have mixed the bolts up. He must not work on many LS engines.
Reply
Old Dec 15, 2017 | 07:20 AM
  #8  
moekluse's Avatar
TECH Enthusiast
iTrader: (2)
 
Joined: Nov 2015
Posts: 543
Likes: 4
From: Nc
Default

Originally Posted by G Atsma
If you got the right kit for the engine you have the threads will be JUST RIGHT!
You will have 8 long bolts, 2 short bolts, and 5 smaller bolts for the top row. ARP does not mess things like that up. Your mechanic might have mixed the bolts up. He must not work on many LS engines.
☝️☝️ Completly correct. ARP is my most trusted fastener manufacturer. Out of all the LS kits and other import cars I've worked on, I've never experienced a single issue with them. There head fasteners and main cap studs are unmatched in quality. I seriously doubt they put the kit together incorrectly. I'm sure machinist is screwing up order of bolts.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Pouria Savadkouei
story-1

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

 Verdad Gallardo
story-2

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-3

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

 Verdad Gallardo
story-4

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

 Pouria Savadkouei
story-5

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

 Verdad Gallardo
story-6

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-7

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-8

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-9

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo




All times are GMT -5. The time now is 05:59 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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