Registry 8x Series V8 Swaps (5 Viewers)

[White Stripe]

I don't think the splines are different. I thought the adapters are the same but I only researched this briefly. You could call marks adapters to confirm. A 4l60e should be good for 200k miles or so Im guessing. Should be a lot of info on 4l60e longevity on the net. I bought my rebuilt one for 900 bucks. The 4l80e is a bit bigger of a housing so its a tighter fit in the trans tunnel of the 80 series. Also the plug on the transmission is different and you have to connect a few more wires to the ecu. I would be hesitant to install a used 4l60e unless money was really tight.

 

[MANUCHAO]

As stated have it rebuilt ....
Towing (overheating), and not doing yearly oil changes will shorten the life span of the 60E.... i had my 60E rebuilt.....
while at it i had the tranny shop change the planetary gear from four to five...
With that said.. if i had to do it again i would go with an H55 or a 6L80E...

 

[daytonadogie]

Put in a built 4l60?

Put in a fresh 4l60e and don’t drive like a maniac, you will be fine, especially with the 5.3. The 4l60e has a lower 1st gear than the 4l80 too!

 

[mitchjohnson000]

I'll give marks a call. Looks like the housings are stamped with the same marking of MFG 1195, the biggest difference I see is in the
6 -> 4 bolt adapters. The 60e adapter looks considerably longer to compensate for the decreased case length of the 60e. I'm definitely going to run the 60e to start with, my concern was more for if I wanted to use a 80e in the future...

 

[daytonadogie]

Put in a fresh 4l60e and don’t drive like a maniac, you will be fine, especially with the 5.3. The 4l60e has a lower 1st gear than the 4l80 too!

Don’t quote me on this, but I believe that the 4l80e uses its own ECU. This would make swapping transmissions more complicated.

 

[bulhas]

Don’t quote me on this, but I believe that the 4l80e uses its own ECU. This would make swapping transmissions more complicated.

nope sure dont, 4l80 and 4l60s use the same the same PCM for engine managements and transmission

and I personally wouldnt run a 60 but I wheel HARD, Im about to ditch my Mark adapter for an NWF black box roughly the same cost to be used as my adapter which than acts as a doubler. With my tcase setup ill be

.9:1 2.05:1 3.11:1 and 7.09:1 ! Which will be exactly what im after, ill probably rarely be in 4"HI" ill likely stick to 2 to 1 ratio for most open wheeling and than float between 3.11 and 7.09

 

[thatcabledude]

nope sure dont, 4l80 and 4l60s use the same the same PCM for engine managements and transmission

and I personally wouldnt run a 60 but I wheel HARD, Im about to ditch my Mark adapter for an NWF black box roughly the same cost to be used as my adapter which than acts as a doubler. With my tcase setup ill be

.9:1 2.05:1 3.11:1 and 7.09:1 ! Which will be exactly what im after, ill probably rarely be in 4"HI" ill likely stick to 2 to 1 ratio for most open wheeling and than float between 3.11 and 7.09

That will be really sweet. I waited and waited for that thing so I could do the same, but eventually gave up and got the adapter. Now after hearing about its minimal oil capacity and the need for a pump, I'm not sure I ever will.

 

[bulhas]

That will be really sweet. I waited and waited for that thing so I could do the same, but eventually gave up and got the adapter. Now after hearing about its minimal oil capacity and the need for a pump, I'm not sure I ever will.

oil pumps are cheap, and easy to wire in, but yes I hear the annoyance, im in the weird boat where I want a real 4 hi per say

HOWEVER im considering just going the route of a 3 speed atlas

 

[goranvolvo]

nope sure dont, 4l80 and 4l60s use the same the same PCM for engine managements and transmission

and I personally wouldnt run a 60 but I wheel HARD, Im about to ditch my Mark adapter for an NWF black box roughly the same cost to be used as my adapter which than acts as a doubler. With my tcase setup ill be

.9:1 2.05:1 3.11:1 and 7.09:1 ! Which will be exactly what im after, ill probably rarely be in 4"HI" ill likely stick to 2 to 1 ratio for most open wheeling and than float between 3.11 and 7.09

it depends on year i have 2007 5.3 and engine and trans use separate ECU but i believe ECU for 4l80 and 4l60 r same just different programing

 

[bulhas]

it depends on year i have 2007 5.3 and engine and trans use separate ECU but i believe ECU for 4l80 and 4l60 r same just different programing

pfft im old school, rocking an 0411 from a chevy express van reusing the old school throttle cable! was easy peasy, and I found much finer throttle control, BUT i dont drive mine far distances when Im done I load it on the trailer usually broken hahahaha and get in my cummins and go home lol

 

[SammyB]

Shot in the dark but for those of you that have reworked your wiring harness:

I can’t connect to my ECM via HP tuners or even with a normal scanner. I double checked and ohmed out Blue 58 serial data to OBDII port and have continuity. I have my 3 grounds going to the negative terminal and have wired up the positive side through a relay but. The OBDII port has power. It lights up my HP tuners device but I still can’t actually connect. I emailed Brandon from LT1Swap but haven't heard back from him.

 

[MANUCHAO]

shot in the dark here...but disconnect your ECM, battery (+/-), then trying it again?

 

[SammyB]

shot in the dark here...but disconnect your ECM, battery (+/-), then trying it again?

I've done this multiple times as I triple checked my connections

 

[goranvolvo]

how many wires you have going to OBD plug ? and what color
what year is the motor

 

[SammyB]

4 wires: 2 ground, 1 positive, 1 serial data. Green serial data wire. 01 chevy silverado

 

[goranvolvo]

according to alldata green wire is for for body so you need PURPLE wire for engine diagnostic signal here is picture off data plug pinout so at pin #2 you must have purple wire

 

[thatcabledude]

Yeah. I recall it being purple on my swap. 2002 ECU

 

[SammyB]

It was purple because it came from a splice where the BCM serial data connected to the ECM serial data. I'm just using the green wire straight from the ECU to OBDII, cutting out the BCM serial data.

 

[bulhas]

have you bench tested the ECM?? i purposely built a test harness for the PCM/ECM so i could flash it on the bench not factoring in the wirign from the vehicle, I ended up having a couple minor issues with my harness one being I had to keep the key int he crank position hahahahaa

 

[White Stripe]

So you have pin 58 wired to pin 2 on the Connector?