Rebuild or run high milage 4.8? - Page 2 - LS1TECH - Camaro and Firebird Forum Discussion



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

Rebuild or run high milage 4.8?

Reply
 
Thread Tools Search this Thread
Old 03-18-2017, 09:25 AM   #21
Teching In
Thread Starter
 
Join Date: Jun 2015
Posts: 20
Default

Do you rember the size/grit dingo ball you ran through it if i go that route.
transam197781 is offline   Reply With Quote
Old 03-18-2017, 09:37 AM   #22
KCS
Moderator
iTrader: (19)
 
KCS's Avatar
 
Join Date: Mar 2005
Location: The Woodlands, TX
Posts: 7,146
Default

Quote:
Originally Posted by transam197781 View Post
Do you rember the size/grit dingo ball you ran through it if i go that route.
I'm going that route and picked up a set of Mahle rings from Summit for ~$40, PN 41859CP. It's a nice set with a Moly faced steel top ring, napier style second ring, and stainless oil rings. With the Moly faced rings, the Flex Hone rep I spoke with recommended the 320 grit, PN GB41832, which pretty much covers any bore size from the 4.8/5.3L to the LS7. Summit has them in stock for ~$56.
KCS is offline   Reply With Quote
Old 03-18-2017, 09:49 AM   #23
Teching In
Thread Starter
 
Join Date: Jun 2015
Posts: 20
Default

Sounds good good luck on your project.Thanks for the info.Do you take the crank out to hone or just the pistons?

Last edited by transam197781; 03-18-2017 at 09:56 AM.
transam197781 is offline   Reply With Quote
Old 03-18-2017, 10:16 AM   #24
TECH Addict
iTrader: (19)
 
truckdoug's Avatar
 
Join Date: Nov 2013
Location: Portlandia
Posts: 2,282
Default

take the crank out IMO
truckdoug is offline   Reply With Quote
Old 03-21-2017, 01:03 PM   #25
8 Second Club
iTrader: (4)
 
Forcefed86's Avatar
 
Join Date: May 2011
Location: Wichita, KS
Posts: 4,924
Default

Quote:
Originally Posted by JoeNova View Post
People think I'm absolutely crazy, but everytime I buy a truck that I intend to pull the engine out of, I let it warm up to temp. Then I get a very small vacuum line, hook it to the intake, put a bolt under the throttle cam to make it idle at 4 grand.....

and I drop that vacuum line into a full gallon jug of windshield washer fluid.

Takes a few minutes to suck it dry. Using a bore scope, the carbon buildup is significantly reduced. Compression tests almost always yield better results, which is a sign that it helps with stuck rings.
I put used ATF through the engine the same way. It really cleans the gunk and frees up the rings. A gallon or so will smoke out the whole block.
Forcefed86 is offline   Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Will accessories from a 4.8 mount on 6.0 or 6.2? muleyman78 Generation IV External Engine 9 01-11-2017 08:23 PM
Gears 48rat Forced Induction 3 09-24-2016 03:34 PM
4.8l turbo chevyboy91188 Forced Induction 14 08-12-2015 05:15 PM
4.8 and LS1 stock cams question... LS12Fast4U Generation III Internal Engine 14 11-09-2011 12:31 PM
LR4 to 7000 rpm? RandyS Generation III Internal Engine 1 12-21-2004 03:03 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 06:56 AM.


 
  • Ask a Question
    Get answers from community experts
What's your question?
Send