Reputable Shop To Order 4L65E
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Teching In
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Reputable Shop To Order 4L65E Need a transmission for the 6.0 swap that I am working on for my 66 Buick Electra. I have a 6.0 out of a 2003 Cadillac Escalade that came without trans. No one in my area is willing to do a rebuild; can you pls provide reputable builders that maybe you have used or recommend.
Thanks In Advance,
Ed
Thanks In Advance,
Ed
Thread Starter
Teching In
Joined: Oct 2019
Posts: 31
Likes: 0
Thread Starter
Teching In
Joined: Oct 2019
Posts: 31
Likes: 0
TECH Junkie
Joined: Jun 2008
Posts: 3,202
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From: Nitro Alley
I am curious... what power-train (engine/ trans/ differential) came in your vehicle originally?
So I would imagine that a 4L80E unit should NOT be much work. They are close in size.
The passenger side pan-rail is larger and the tail end is larger... The early cases with cooler lines at the pump make the unit an easier fit too.
My father was a huge BUICK enthusiast and mostly had Skylark/ GS cars... I have fit both THM200-4R units and 4L80E units in his cars (A-body) without issue.
Your car (Super/ Electra C-body) is much larger and has more room for the transmission (in most parts of the tunnel anyway).
TECH Junkie
Joined: Jun 2008
Posts: 3,202
Likes: 1,390
From: Nitro Alley
A unit from the 4L60 family could work... Don't get me wrong.
I build these for customers, but hesitantly for the 1,000 HP mark (only in situations where another transmission is not permitted).
I feel the THM200-4R is a superior choice over the 4L60 family when approaching the 1,000 HP mark... or in your case for a big/ heavy car.
Even with all the improvements that have occurred with this unit from 1982 to 2008... OEM and aftermarket...
The 3-4 clutch is still lacking. The 4L79 drum makes a huge improvement for the 3-4 clutch in terms of clutch surface area...
But the 3-4 clutch apply piston is still lacking.
This alone is a big part of what makes the THM200-4R a better choice when building these units up.
As a builder who sells both transmissions for that power level; I have a hard time turning people to the 4L60 family units for:
-heavier vehicles
-medium to high powered light vehicles
-medium powered heavy vehicles
Your car should be in the 4,700 lbs to 5,200 Lbs range stock.. Possibly lighter with a small block Buick engine (small block Buick engines are lighter than small block Chevy engines).
The 4L80E would be a better choice over the other two transmissions by far. Second to a 4L80E unit would be a THM200-4R unit and lastly a 4L60 family unit.
A 4L80E unit would definitely outlast a comparable 4L60E, and usually for less money.
Not to mention handle more power (should you decide to build-up that 6.0L)
I build these for customers, but hesitantly for the 1,000 HP mark (only in situations where another transmission is not permitted).
I feel the THM200-4R is a superior choice over the 4L60 family when approaching the 1,000 HP mark... or in your case for a big/ heavy car.
Even with all the improvements that have occurred with this unit from 1982 to 2008... OEM and aftermarket...
The 3-4 clutch is still lacking. The 4L79 drum makes a huge improvement for the 3-4 clutch in terms of clutch surface area...
But the 3-4 clutch apply piston is still lacking.
This alone is a big part of what makes the THM200-4R a better choice when building these units up.
As a builder who sells both transmissions for that power level; I have a hard time turning people to the 4L60 family units for:
-heavier vehicles
-medium to high powered light vehicles
-medium powered heavy vehicles
Your car should be in the 4,700 lbs to 5,200 Lbs range stock.. Possibly lighter with a small block Buick engine (small block Buick engines are lighter than small block Chevy engines).
The 4L80E would be a better choice over the other two transmissions by far. Second to a 4L80E unit would be a THM200-4R unit and lastly a 4L60 family unit.
A 4L80E unit would definitely outlast a comparable 4L60E, and usually for less money.
Not to mention handle more power (should you decide to build-up that 6.0L)
Last edited by vorteciroc; Oct 11, 2019 at 07:43 PM.
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TECH Junkie
Joined: Jun 2008
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Likes: 1,390
From: Nitro Alley
Also, should you be looking for a core (used transmission) to rebuild/ have rebuilt...
DO NOT purchase a 4L65E or 4L70E core.
Purchase a 4L60E core.
Try the member "PBA" (Dana of probuiltautomatics.com) for a core to purchase.
E-mail him via his website or call him via the phone number listed on his website.
The transmission will need to be modified and receive aftermarket parts, updated/ upgraded OEM parts regardless of the unit being a 60E, 65E, or 70E
All three transmissions are extremely similar; However the 65E and 70E are a good amount more expensive and not worth it over the 60E.
The 65E and 70E will cost more and provide you no added benefit over the 60E.
Get the best 60E core that you can afford... The needed modifications will make the transmission better than any stock 65E or 70E.
DO NOT purchase a 4L65E or 4L70E core.
Purchase a 4L60E core.
Try the member "PBA" (Dana of probuiltautomatics.com) for a core to purchase.
E-mail him via his website or call him via the phone number listed on his website.
The transmission will need to be modified and receive aftermarket parts, updated/ upgraded OEM parts regardless of the unit being a 60E, 65E, or 70E
All three transmissions are extremely similar; However the 65E and 70E are a good amount more expensive and not worth it over the 60E.
The 65E and 70E will cost more and provide you no added benefit over the 60E.
Get the best 60E core that you can afford... The needed modifications will make the transmission better than any stock 65E or 70E.
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Teching In
Joined: Oct 2019
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A unit from the 4L60 family could work... Don't get me wrong.
I build these for customers, but hesitantly for the 1,000 HP mark (only in situations where another transmission is not permitted).
I feel the THM200-4R is a superior choice over the 4L60 family when approaching the 1,000 HP mark... or in your case for a big/ heavy car.
Even with all the improvements that have occurred with this unit from 1982 to 2008... OEM and aftermarket...
The 3-4 clutch is still lacking. The 4L79 drum makes a huge improvement for the 3-4 clutch in terms of clutch surface area...
But the 3-4 clutch apply piston is still lacking.
This alone is a big part of what makes the THM200-4R a better choice when building these units up.
As a builder who sells both transmissions for that power level; I have a hard time turning people to the 4L60 family units for:
-heavier vehicles
-medium to high powered light vehicles
-medium powered heavy vehicles
Your car should be in the 4,700 lbs to 5,200 Lbs range stock.. Possibly lighter with a small block Buick engine (small block Buick engines are lighter than small block Chevy engines).
The 4L80E would be a better choice over the other two transmissions by far. Second to a 4L80E unit would be a THM200-4R unit and lastly a 4L60 family unit.
A 4L80E unit would definitely outlast a comparable 4L60E, and usually for less money.
Not to mention handle more power (should you decide to build-up that 6.0L)
I build these for customers, but hesitantly for the 1,000 HP mark (only in situations where another transmission is not permitted).
I feel the THM200-4R is a superior choice over the 4L60 family when approaching the 1,000 HP mark... or in your case for a big/ heavy car.
Even with all the improvements that have occurred with this unit from 1982 to 2008... OEM and aftermarket...
The 3-4 clutch is still lacking. The 4L79 drum makes a huge improvement for the 3-4 clutch in terms of clutch surface area...
But the 3-4 clutch apply piston is still lacking.
This alone is a big part of what makes the THM200-4R a better choice when building these units up.
As a builder who sells both transmissions for that power level; I have a hard time turning people to the 4L60 family units for:
-heavier vehicles
-medium to high powered light vehicles
-medium powered heavy vehicles
Your car should be in the 4,700 lbs to 5,200 Lbs range stock.. Possibly lighter with a small block Buick engine (small block Buick engines are lighter than small block Chevy engines).
The 4L80E would be a better choice over the other two transmissions by far. Second to a 4L80E unit would be a THM200-4R unit and lastly a 4L60 family unit.
A 4L80E unit would definitely outlast a comparable 4L60E, and usually for less money.
Not to mention handle more power (should you decide to build-up that 6.0L)
Thread Starter
Teching In
Joined: Oct 2019
Posts: 31
Likes: 0
Also, should you be looking for a core (used transmission) to rebuild/ have rebuilt...
DO NOT purchase a 4L65E or 4L70E core.
Purchase a 4L60E core.
Try the member "PBA" (Dana of probuiltautomatics.com) for a core to purchase.
E-mail him via his website or call him via the phone number listed on his website.
The transmission will need to be modified and receive aftermarket parts, updated/ upgraded OEM parts regardless of the unit being a 60E, 65E, or 70E
All three transmissions are extremely similar; However the 65E and 70E are a good amount more expensive and not worth it over the 60E.
The 65E and 70E will cost more and provide you no added benefit over the 60E.
Get the best 60E core that you can afford... The needed modifications will make the transmission better than any stock 65E or 70E.
DO NOT purchase a 4L65E or 4L70E core.
Purchase a 4L60E core.
Try the member "PBA" (Dana of probuiltautomatics.com) for a core to purchase.
E-mail him via his website or call him via the phone number listed on his website.
The transmission will need to be modified and receive aftermarket parts, updated/ upgraded OEM parts regardless of the unit being a 60E, 65E, or 70E
All three transmissions are extremely similar; However the 65E and 70E are a good amount more expensive and not worth it over the 60E.
The 65E and 70E will cost more and provide you no added benefit over the 60E.
Get the best 60E core that you can afford... The needed modifications will make the transmission better than any stock 65E or 70E.