4l60e Cooler line flow direction
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Joined: Oct 2005
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From: Crestview, Florida
Car: 86 IROC-Z, 98 Z28
Engine: 370 LSx, LS1
Transmission: T56's
Axle/Gears: 3.73, 3.42
4l60e Cooler line flow direction
Just wanting to make sure I have the routing correct.
Trans is a 4l60e, radiator is a stock thirdgen replacement. On the trans the top fitting is the return, connecting to the lower fitting on the radiator. And the bottom fitting on the trans is the feed, connecting to the top fitting on the radiator.
Trans is a 4l60e, radiator is a stock thirdgen replacement. On the trans the top fitting is the return, connecting to the lower fitting on the radiator. And the bottom fitting on the trans is the feed, connecting to the top fitting on the radiator.
Senior Member
Joined: Dec 2009
Posts: 702
Likes: 4
From: Texas
Car: 1989 IROC LSX
Engine: Swapped LS6 Forged by LME
Transmission: 4L65E
Axle/Gears: 3.73
Re: 4l60e Cooler line flow direction
Pressure to the top of radiator, return to lower. Thats how mine is hooked up.
Thread Starter
Senior Member
iTrader: (16)
Joined: Oct 2005
Posts: 651
Likes: 0
From: Crestview, Florida
Car: 86 IROC-Z, 98 Z28
Engine: 370 LSx, LS1
Transmission: T56's
Axle/Gears: 3.73, 3.42
Re: 4l60e Cooler line flow direction
Ok cool thats how i have it. Thanks
Junior Member
Joined: May 2013
Posts: 33
Likes: 0
From: galt, ca
Car: 86 Z28/86 IROC
Engine: 305 LG4/ LT1
Transmission: 700R4/4L60E
Axle/Gears: 3.42
Re: 4l60e Cooler line flow direction
Ive had the coolers crack inside the rad twice now, immediate death of the trans, i run a air cooler up front.
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