Go Back   LS1TECH > LS1-LS2-LS3-LS6-LS7 PERFORMANCE > Conversions & Hybrids
Sign in using an external account
Register Forgot Password?
Search

Conversions & Hybrids
LSX Engines in Non-LSX Vehicles
Sponsored by
Don Hardy Race Cars

4.8l fleplate problems please help!

Reply
 
Thread Tools Search this Thread
Old 11-30-2009, 10:46 PM   #1
Registered User
Garage is empty, add now
 
Trader Rating: 0
Join Date: Nov 2009
Posts: 5
Default 4.8l fleplate problems please help!

Can someone please help me? I recently bought a 2000 1500 silverado with the 4.8l with a manual transmission, the manual tranny is going and is being replaced with a 4l60E the problem im having is this motor seems to have the wide crank flange and the standard dished flexplate will not work what do i need? can i use a 6.0 flat flexplate from a 99? anything else i should be aware?

thanks in advance
racergrn is offline   Reply With Quote
Old 12-01-2009, 12:30 AM   #2
TECH Enthusiast
1967 Chevrolet Camaro
My Garage
 
RNation0001's Avatar
 
Trader Rating: 2
Join Date: Jan 2009
Posts: 601
Default

i believe what u need is a flexplate spacer or another flexplate. where did you get the flexplate when you took the manual tranny out?
RNation0001 is offline   Reply With Quote
Old 12-01-2009, 08:44 AM   #3
Registered User
Garage is empty, add now
 
Trader Rating: 0
Join Date: Nov 2009
Posts: 5
Default

flexplate was pulled from an 2000 5.3 problem im having is the flexplate contacts the starter cone
racergrn is offline   Reply With Quote
Old 12-01-2009, 08:52 AM   #4
Vortec Scout II
Garage is empty, add now
 
Bo185's Avatar
 
Trader Rating: 0
Join Date: Jul 2005
Location: Beebe, Arkansas
Posts: 1,676
Default

Quote:
Originally Posted by racergrn View Post
Can someone please help me? I recently bought a 2000 1500 silverado with the 4.8l with a manual transmission, the manual tranny is going and is being replaced with a 4l60E the problem im having is this motor seems to have the wide crank flange and the standard dished flexplate will not work what do i need? can i use a 6.0 flat flexplate from a 99? anything else i should be aware?

thanks in advance
You need the flat flex plate an the earlier style converter. As the Gen III converter has a nub near the crank that will hit the longer crank.
__________________
'73 Scout II 4x4 Vortec 5.3 4L65E np241

'01 VW Beetle TDI-50mpg or better!

'56 Belair 4 door hardtop*next LSx project* 5.3/4l60/3.08's (looking for 25+mpg!)

TECH: Gen III/IV "LS motor" to Non Gen III/IV Auto Trans
Bo185 is offline   Reply With Quote
Old 12-01-2009, 10:29 AM   #5
TECH Fanatic
Garage is empty, add now
 
forcd ind's Avatar
 
Trader Rating: 2
Join Date: Sep 2007
Location: woodbine, md
Posts: 1,945
Default

if the crank does have the extended rear, and not a spacer, you would need a flat flywheel, and prob have a converter made with a shorter snout to work-the 4l60e converters had a longer snout in a pass car, not sure exactly what they did in a truck that orig had a longer crank, maybe a diff converter?
forcd ind is offline   Reply With Quote
Old 12-01-2009, 10:55 AM   #6
Registered User
Garage is empty, add now
 
Trader Rating: 0
Join Date: Nov 2009
Posts: 5
Default

so i need the earlier 4l60 or 700r convertor? but what year of flex plate would i need? sorry for the ignorant questions
racergrn is offline   Reply With Quote
Old 12-01-2009, 11:53 AM   #7
Vortec Scout II
Garage is empty, add now
 
Bo185's Avatar
 
Trader Rating: 0
Join Date: Jul 2005
Location: Beebe, Arkansas
Posts: 1,676
Default

Quote:
Originally Posted by forcd ind View Post
if the crank does have the extended rear, and not a spacer, you would need a flat flywheel, and prob have a converter made with a shorter snout to work-the 4l60e converters had a longer snout in a pass car, not sure exactly what they did in a truck that orig had a longer crank, maybe a diff converter?
The trucks with the longer crank had the 4l80 in them it had the correct converter. Yes the 4.8l was used with the 4l80 in the Vans. Also the longer crank was used with the NV3500 and NV4500 manual trans as well.

Any flat 6.0l flex plate will work and you won't need the spacer as well.

You will need the earlier 4l60e converter (1997-1999) Gen I or a 4.3L converter.
__________________
'73 Scout II 4x4 Vortec 5.3 4L65E np241

'01 VW Beetle TDI-50mpg or better!

'56 Belair 4 door hardtop*next LSx project* 5.3/4l60/3.08's (looking for 25+mpg!)

TECH: Gen III/IV "LS motor" to Non Gen III/IV Auto Trans
Bo185 is offline   Reply With Quote
Old 12-01-2009, 05:53 PM   #8
Registered User
Garage is empty, add now
 
Trader Rating: 0
Join Date: Nov 2009
Posts: 5
Default

wow what a relief! thank you i thought this build was going to be placed on hold
racergrn is offline   Reply With Quote
Old 12-01-2009, 05:53 PM
LS1Tech
Pontiac Firebird




Paid Advertisement
Reply


Tags
1999, 2000, 2009, 48, 48l, chevy, crank, flange, flexplate, flywheel, ls1, manual, mt, problem, rating, silverado, spacer, transmission


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 On
Refbacks are Off



Join Ls1Tech

All times are GMT -5. The time now is 10:59 PM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Advertising - Terms of Service - Privacy Statement - JOBS
Emails & Contact Details