98 GMC 3500 7.4 swap to 6.0?
04-06-2015, 05:46 PM
#1
98 GMC 3500 7.4 swap to 6.0? Anyone ever looked at doing this swap?
Was wondering how the 6.0 harness would match up, there is a 0411 swap most do to allow tuning and to ditch the black box ecu so I assume the 6.0 swap would be pretty easy.
I have a crew cab 3500 srw 7.4 4l80e that I really love just hate the big block, it does great towing my racecar but it is getting tired and I would rather not throw any money away rebuilding it if the 6.0 swap is simple to integrate plus I can use my 4L80e that is already in the truck.
Was wondering how the 6.0 harness would match up, there is a 0411 swap most do to allow tuning and to ditch the black box ecu so I assume the 6.0 swap would be pretty easy.
I have a crew cab 3500 srw 7.4 4l80e that I really love just hate the big block, it does great towing my racecar but it is getting tired and I would rather not throw any money away rebuilding it if the 6.0 swap is simple to integrate plus I can use my 4L80e that is already in the truck.
04-06-2015, 05:52 PM
#2
Launching!
Join Date: Nov 2005
Location: Idaho (for now)
Posts: 255
Likes: 0
Received 0 Likes
on
0 Posts
Go for it - I put a 6.0 in place of a 5.7 in my 98 K2500 burb with 4L80e and it worked out great. the only gauge that does not work is the fuel gauge and I'm told with the correct tuner it can be made to work. I used the stock 5.7 harness and just added the individual coil and injector wiring, then pulled all the pins from the 98' black ecm and repined them into the 0411.
04-06-2015, 06:13 PM
#3
Go for it - I put a 6.0 in place of a 5.7 in my 98 K2500 burb with 4L80e and it worked out great. the only gauge that does not work is the fuel gauge and I'm told with the correct tuner it can be made to work. I used the stock 5.7 harness and just added the individual coil and injector wiring, then pulled all the pins from the 98' black ecm and repined them into the 0411.
Last edited by 68 SS; 04-06-2015 at 06:24 PM.
04-06-2015, 08:29 PM
#6
Launching!
Join Date: Nov 2005
Location: Idaho (for now)
Posts: 255
Likes: 0
Received 0 Likes
on
0 Posts
Different animal here the 7.4 Vortech has 8 injectors hence the questions everyone I have seen was a 1500 TBI obs swap. People are doing a 0411 PCM swap on the 7.4 so I assume it is as simple repining the harness and plugging it in aside from the additional coil wiring that will be needed?
04-06-2015, 08:42 PM
#7
Then all you need to do is add the 8 coil controls and powers and you're good to go! On the 5.7 the fuel injector plug for the "spider" injector setup has the same colors and pin assignments that the 0411 has. PM me your email and I'll send you the pin outs, if you want....
Trending Topics
05-28-2019, 11:39 AM
#9
Registered User
Join Date: May 2019
Posts: 1
Likes: 0
Received 0 Likes
on
0 Posts
99Crew454 I found this and wondering if this increases gas mileage on the 454 Votex, changing to the spark plug coil and related changes ?
I have 4.10 gears and 4X4.
I have a local salvage yard to get other Gearing.
I have 4.10 gears and 4X4.
I have a local salvage yard to get other Gearing.
05-17-2022, 05:32 PM
#11
TECH Senior Member
05-17-2022, 05:51 PM
#12
TECH Fanatic
The following users liked this post:
G Atsma (05-17-2022)
05-22-2023, 12:57 AM
#13
Registered User
Join Date: May 2023
Posts: 1
Likes: 0
Received 0 Likes
on
0 Posts
2000 5.7 to 6.0 swap Then all you need to do is add the 8 coil controls and powers and you're good to go! On the 5.7 the fuel injector plug for the "spider" injector setup has the same colors and pin assignments that the 0411 has. PM me your email and I'll send you the pin outs, if you want....
05-22-2023, 09:10 AM
#14
TECH Senior Member