Will my 4l60e fit my 6.0 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

99_Sierra · 03-21-2013, 12:02 PM

I have a 99 gmc Sierra 5.3 it has a 4l60e. I am building a lq4 out of a 2001 Denali. Will my 4l60e bolt right up to my 6.0?

Thanks
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MadManAndrew · 03-21-2013, 05:12 PM

It will bolt up but it won't last very long.
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99_Sierra · 03-21-2013, 05:30 PM

Why do u say that?? Reason I ask is his truck has a 4l60e and it has like 200k miles so his has lasted.
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67ChevyRedneck · 03-21-2013, 07:47 PM

Didn't the 6.0L come backed with the 4L80E.

If that's the case think of it like a 327 or 350 being backed by a TH350 and a 454 backed by a TH400.... or 4.8 and 4.5 with 4L60 and 6.0L with 4L80.

Some good info here:

http://www.gm-trucks.com/forums/topi...t-the-lq4-60l/

Sooner84 · 03-22-2013, 01:08 AM

I would definitely put a 80e behind it. I wouldn't even mess with building the 60e to hold up to a 6.0.
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low69chevy · 03-22-2013, 06:59 AM

It will bolt right up I like to use my old flywheel when I do swaps and just make sure if your using one of the older 6.0s if it has the spacer between the crank and flywheel take it out. As far as the built 60 i've gone thru 3 and mine has all the goofies on it pi multi disc converter,trans cooler w/fan right now its getting rebuilt case it was starting to go out again so I recommend if.you can swap to a good 80e its worth it if you plan on beating on it, my 6.0 has cam/heads, fbo,nnbs intake and pretty much a whole bunch of goodies.
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clinebarger · 03-22-2013, 07:06 PM

All 6.0L LQ9 & LQ4 that were installed in 1/2 ton chassis had either a 4L60E or 4L65E. A well built 4L60E can EASILY handle a cam/heads 6.0L...Where a stock 4L80E will handle it.

hotrodchevy1999 · 03-22-2013, 09:53 PM

Quote:

Originally Posted by clinebarger

All 6.0L LQ9 & LQ4 that were installed in 1/2 ton chassis had either a 4L60E or 4L65E. A well built 4L60E can EASILY handle a cam/heads 6.0L...Where a stock 4L80E will handle it.

would a 4l80 out of a 98 chevy 2500 model work

bighaas79 · 03-23-2013, 07:07 PM

Quote:

Originally Posted by clinebarger

All 6.0L LQ9 & LQ4 that were installed in 1/2 ton chassis had either a 4L60E or 4L65E. A well built 4L60E can EASILY handle a cam/heads 6.0L...Where a stock 4L80E will handle it.

Wasn't there a good bit of torque management programmed into these trucks though? Even with the 4l80e there was torque management programming. Not saying it wouldn't work but there might have been a programming difference to help make the 60/65 last longer behind the 6.0.

67ChevyRedneck · 03-23-2013, 07:54 PM

I'm sure there was too. Even the 5.3 is held back quite a bit.

clinebarger · 03-23-2013, 09:28 PM

Quote:

Originally Posted by hotrodchevy1999

would a 4l80 out of a 98 chevy 2500 model work

Yes, It will work. Non LS 4L80E's don't have the top center bellhousing bolt.

Quote:

Originally Posted by bighaas79

Wasn't there a good bit of torque management programmed into these trucks though? Even with the 4l80e there was torque management programming. Not saying it wouldn't work but there might have been a programming difference to help make the 60/65 last longer behind the 6.0.

Different programming for sure, A LQ9/4L65E from a Cadillac Escalade will have different tuning than a LQ9/4L65E from a Silverado SS, Any 60/65/70 will need to be BUILT to handle a modified engine & or tuning.

RedRider · 06-12-2018, 06:21 PM

Reviving an old thread here questioning my thoughts of running a 6.0L/4L60e combo in my 70 C10. I have the tranny in my garage with plans to do a 5.3 LS swap, then found a better deal on an LQ4. Lot's of opinions saying a 4L60e would hold up fine, and even more saying not a chance.

Seems to me that if GM didn't put the 4L60e behind the 6.0L neither should I, or am I just not adventurous enough?

faribran · 06-12-2018, 06:47 PM

GM DID put the 4l65e behind the 6.0 ...and this is basically the same tranny

faribran · 06-12-2018, 06:49 PM

See earlier comment from Clinebarger. He knows his stuff

faribran · 06-12-2018, 06:55 PM

We all know the drivers right foot can tear up most anything. The life of tranny will hinge largely on how it is driven and how well serviced\maintained.

RedRider · 06-13-2018, 12:44 AM

So if it boils down to building a performance 4L60e vs finding a stock 4L80e, i’d probably go with the latter .

03-21-2013, 12:02 PM	#1
99_Sierra Registered User Join Date: Jul 2012 Location: tulsa oklahoma Posts: 53	Will my 4l60e fit my 6.0 I have a 99 gmc Sierra 5.3 it has a 4l60e. I am building a lq4 out of a 2001 Denali. Will my 4l60e bolt right up to my 6.0? Thanks Posted via Mobile Device

03-21-2013, 05:12 PM	#2
MadManAndrew Registered User Join Date: Mar 2011 Location: Dallas, Texas Posts: 920	Re: Will my 4l60e fit my 6.0 It will bolt up but it won't last very long. Posted via Mobile Device __________________ 1955 Chevy 3600 http://67-72chevytrucks.com/vboard/s...61#post8589061

03-21-2013, 05:30 PM	#3
99_Sierra Registered User Join Date: Jul 2012 Location: tulsa oklahoma Posts: 53	Re: Will my 4l60e fit my 6.0 Why do u say that?? Reason I ask is his truck has a 4l60e and it has like 200k miles so his has lasted. Posted via Mobile Device Last edited by 99_Sierra; 03-21-2013 at 05:36 PM.

03-21-2013, 07:47 PM	#4
67ChevyRedneck Hittin E-Z Street on Mud Tires Join Date: Nov 2004 Location: Greenville, SC Posts: 23,090	Re: Will my 4l60e fit my 6.0 Didn't the 6.0L come backed with the 4L80E. If that's the case think of it like a 327 or 350 being backed by a TH350 and a 454 backed by a TH400.... or 4.8 and 4.5 with 4L60 and 6.0L with 4L80. Some good info here: http://www.gm-trucks.com/forums/topi...t-the-lq4-60l/ __________________ Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications!

03-22-2013, 01:08 AM	#5
Sooner84 Registered User Join Date: Dec 2009 Location: Moore, Oklahoma Posts: 379	Re: Will my 4l60e fit my 6.0 I would definitely put a 80e behind it. I wouldn't even mess with building the 60e to hold up to a 6.0. Posted via Mobile Device __________________ 1984 chevy swb(1st truck, sold..) 2001 RCSB silverado, 5.3 with a little extra 2004 ECSB Silverado LT, 5.3 cam & bolt ons, 4l60e shift kit/stall, g80 & 3.73s My first (1984 c10) Build

03-22-2013, 06:59 AM	#6
low69chevy Registered User Join Date: Jul 2011 Location: edinburg tx Posts: 174	Re: Will my 4l60e fit my 6.0 It will bolt right up I like to use my old flywheel when I do swaps and just make sure if your using one of the older 6.0s if it has the spacer between the crank and flywheel take it out. As far as the built 60 i've gone thru 3 and mine has all the goofies on it pi multi disc converter,trans cooler w/fan right now its getting rebuilt case it was starting to go out again so I recommend if.you can swap to a good 80e its worth it if you plan on beating on it, my 6.0 has cam/heads, fbo,nnbs intake and pretty much a whole bunch of goodies. Posted via Mobile Device

03-22-2013, 07:06 PM	#7
clinebarger Senior Member Join Date: May 2009 Location: Fort Worth, TX Posts: 6,370	Re: Will my 4l60e fit my 6.0 All 6.0L LQ9 & LQ4 that were installed in 1/2 ton chassis had either a 4L60E or 4L65E. A well built 4L60E can EASILY handle a cam/heads 6.0L...Where a stock 4L80E will handle it.

03-23-2013, 07:54 PM	#10
67ChevyRedneck Hittin E-Z Street on Mud Tires Join Date: Nov 2004 Location: Greenville, SC Posts: 23,090	Re: Will my 4l60e fit my 6.0 I'm sure there was too. Even the 5.3 is held back quite a bit. __________________ Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications!

06-12-2018, 06:21 PM	#12
RedRider Registered User Join Date: Jan 2016 Location: Poway, CA Posts: 356	Re: Will my 4l60e fit my 6.0 Reviving an old thread here questioning my thoughts of running a 6.0L/4L60e combo in my 70 C10. I have the tranny in my garage with plans to do a 5.3 LS swap, then found a better deal on an LQ4. Lot's of opinions saying a 4L60e would hold up fine, and even more saying not a chance. Seems to me that if GM didn't put the 4L60e behind the 6.0L neither should I, or am I just not adventurous enough? __________________ 1970 C-10 "Old Yeller"

06-12-2018, 06:47 PM	#13
faribran Registered User Join Date: Jul 2005 Location: AL Posts: 1,828	Re: Will my 4l60e fit my 6.0 GM DID put the 4l65e behind the 6.0 ...and this is basically the same tranny __________________ "

06-12-2018, 06:49 PM	#14
faribran Registered User Join Date: Jul 2005 Location: AL Posts: 1,828	Re: Will my 4l60e fit my 6.0 See earlier comment from Clinebarger. He knows his stuff __________________ "

06-12-2018, 06:55 PM	#15
faribran Registered User Join Date: Jul 2005 Location: AL Posts: 1,828	Re: Will my 4l60e fit my 6.0 We all know the drivers right foot can tear up most anything. The life of tranny will hinge largely on how it is driven and how well serviced\maintained. __________________ "

06-13-2018, 12:44 AM	#16
RedRider Registered User Join Date: Jan 2016 Location: Poway, CA Posts: 356	Re: Will my 4l60e fit my 6.0 So if it boils down to building a performance 4L60e vs finding a stock 4L80e, i’d probably go with the latter . __________________ 1970 C-10 "Old Yeller"



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