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

Cylinder flex honing

Thread Tools
 
Search this Thread
 
Old Jan 11, 2012 | 04:35 AM
  #1  
Ws6Dnero's Avatar
Thread Starter
11 Second Club
iTrader: (23)
 
Joined: Apr 2011
Posts: 296
Likes: 0
From: Memphis, Tn
Default Cylinder flex honing

Ok so whats the procedure for flexhoning an engine block? My guess is lube the flexhone and cylinder walls with engine oil and make 15-20 quicks passes up and down with the hone. Am i right?
Reply
Old Jan 11, 2012 | 07:38 AM
  #2  
SweetS10V8's Avatar
12 Second Club
iTrader: (4)
 
Joined: Jun 2004
Posts: 2,580
Likes: 3
From: Michigan
Default

Not worried about cross hatch angle?
Reply
Old Jan 11, 2012 | 07:58 AM
  #3  
KCS's Avatar
KCS
Moderator
20 Year Member
Liked
Loved
Community Favorite
iTrader: (20)
 
Joined: Mar 2005
Posts: 8,859
Likes: 323
From: Conroe, TX
Default

Originally Posted by Ws6Dnero
Ok so whats the procedure for flexhoning an engine block? My guess is lube the flexhone and cylinder walls with engine oil and make 15-20 quicks passes up and down with the hone. Am i right?
Yep, that's about it. You can get a recommended honing fluid from BRM, which is the company that make the Flex Hone brushes.
Reply
Old Jan 11, 2012 | 06:50 PM
  #4  
Ws6Dnero's Avatar
Thread Starter
11 Second Club
iTrader: (23)
 
Joined: Apr 2011
Posts: 296
Likes: 0
From: Memphis, Tn
Default

ok cool
Reply
Old Jan 11, 2012 | 09:43 PM
  #5  
garygnu's Avatar
TECH Senior Member
 
Joined: Feb 2009
Posts: 5,445
Likes: 4
Default

maybe check Utube for vids.how much material mite your remove with 15-20 passes.
Reply
Old Jan 11, 2012 | 10:32 PM
  #6  
wildcamaro's Avatar
TECH Addict
iTrader: (15)
 
Joined: Nov 2009
Posts: 2,501
Likes: 4
From: Western PA
Default

yea flex hone 400 grit hones are the way to go!!! you can just use ATF trans fluid because its the same viscosity as the stuff they try to sell you with the hone...im waiting for mine in the mail now
Reply
Old Jan 11, 2012 | 11:31 PM
  #7  
ls1 1990 VN's Avatar
TECH Fanatic
20 Year Member
 
Joined: Aug 2004
Posts: 1,373
Likes: 4
From: Auckland, Nth Is, New Zealand.
Default

Just make sure you bolt down a torque plate first if your honing an LS Alloy block or expect it to warp when honing.
Reply
Old Jan 11, 2012 | 11:40 PM
  #8  
wildcamaro's Avatar
TECH Addict
iTrader: (15)
 
Joined: Nov 2009
Posts: 2,501
Likes: 4
From: Western PA
Default

flex hone doesnt even take off a significant enough of material to require a torque plate...its just to get a good cross hatch for rings to seal...no even close to taking off one thousandth of an inch, and if it is you are either using wrong grit, or making over 50 passes with the thing
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 Jan 12, 2012 | 05:53 AM
  #9  
crainholio's Avatar
TECH Addict
iTrader: (2)
 
Joined: Aug 2003
Posts: 2,977
Likes: 3
Default

Originally Posted by ls1 1990 VN
Just make sure you bolt down a torque plate first if your honing an LS Alloy block or expect it to warp when honing.
Really? The torque plate is installed to prevent warpage during honing?
Reply
Old Jan 12, 2012 | 09:00 AM
  #10  
Ws6Dnero's Avatar
Thread Starter
11 Second Club
iTrader: (23)
 
Joined: Apr 2011
Posts: 296
Likes: 0
From: Memphis, Tn
Default

i thought 240 grit was the recommended grit to use?
Reply
Old Jan 12, 2012 | 04:00 PM
  #11  
Ws6Dnero's Avatar
Thread Starter
11 Second Club
iTrader: (23)
 
Joined: Apr 2011
Posts: 296
Likes: 0
From: Memphis, Tn
Default

i bought a 4" 240 flex hone, is 4" the right size....seems kinda big
Reply
Old Jan 13, 2012 | 12:33 AM
  #12  
wildcamaro's Avatar
TECH Addict
iTrader: (15)
 
Joined: Nov 2009
Posts: 2,501
Likes: 4
From: Western PA
Default

Mano suggested 400 grit, I would think you'd be fine as long as you don't go over board...just do enough to get good cross hatch
Reply




All times are GMT -5. The time now is 09:56 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