77 K10 LS Swap

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

Madhorn

Full Access Member
Joined
Jan 16, 2017
Posts
618
Reaction score
1,311
Location
AR-Arkansas
First Name
Ken
Truck Year
1977
Truck Model
K10
Engine Size
5.3/NV4500/NP205/4:56 gear/35in tires
You must be registered for see images attach
I did the harness myself. I have gone back and verified all the O2 lines and voltage. MAF is in stock location.
 

Madhorn

Full Access Member
Joined
Jan 16, 2017
Posts
618
Reaction score
1,311
Location
AR-Arkansas
First Name
Ken
Truck Year
1977
Truck Model
K10
Engine Size
5.3/NV4500/NP205/4:56 gear/35in tires
I have confirmed that the DTC codes are heater circuit. The O2s I installed are Denso. I have heard that AC Delco O2s have better heater circuits. But doesn’t Denso make O2s for AC Delco?? Hmmm
 

rpcraft

Full Access Member
Joined
May 31, 2016
Posts
1,329
Reaction score
507
Location
Texas
First Name
Robert
Truck Year
1985
Truck Model
Jimmy
Engine Size
LS 6.0 364 CID
Maybe it doesn't like the fact you cut the big booger tube off the intake vent, lol....
 

Nicholson72

Member
Joined
Dec 26, 2018
Posts
48
Reaction score
13
Location
Ca
First Name
Chris
Truck Year
82
Truck Model
K10
Engine Size
Ls 5.3
Hey for your cooling system what did you do with your steam hose? You block it off? I took my truck for its first actually drive today and it’s running pretty warm and seem to build up a lot of pressure
 

rpcraft

Full Access Member
Joined
May 31, 2016
Posts
1,329
Reaction score
507
Location
Texas
First Name
Robert
Truck Year
1985
Truck Model
Jimmy
Engine Size
LS 6.0 364 CID
Generally the best thing to do with your steam hose is add it back to the heater return line like the factory does. There is a fitting made specifically for it. Here is a link to the info about it and part #. It is available on Rockauto.com but using the part # you can probably find it at a local supplier if you want to hunt it down today. https://www.rockauto.com/en/moreinfo.php?pk=7936060&jsn=255

You must be registered for see images


You must be registered for see images
 

Nicholson72

Member
Joined
Dec 26, 2018
Posts
48
Reaction score
13
Location
Ca
First Name
Chris
Truck Year
82
Truck Model
K10
Engine Size
Ls 5.3
Oh cool that’s what I was thinking of finding, you just made it easier for me lol thanks
 

Nicholson72

Member
Joined
Dec 26, 2018
Posts
48
Reaction score
13
Location
Ca
First Name
Chris
Truck Year
82
Truck Model
K10
Engine Size
Ls 5.3
Just got one off amazon it will be here Sunday
 

rpcraft

Full Access Member
Joined
May 31, 2016
Posts
1,329
Reaction score
507
Location
Texas
First Name
Robert
Truck Year
1985
Truck Model
Jimmy
Engine Size
LS 6.0 364 CID
I'd just be sure and check it after a couple of years. Not sure what it is made of but I am sure it will corrode away until it leaks just like most of the cheap stuff they put on trucks now days.
 

Madhorn

Full Access Member
Joined
Jan 16, 2017
Posts
618
Reaction score
1,311
Location
AR-Arkansas
First Name
Ken
Truck Year
1977
Truck Model
K10
Engine Size
5.3/NV4500/NP205/4:56 gear/35in tires
You must be registered for see images attach
You must be registered for see images attach
That’s a great looking part. Had not seen that one. I ran mine to the top of the water pump threw a temp gauge fitting.
 
Last edited:

Madhorn

Full Access Member
Joined
Jan 16, 2017
Posts
618
Reaction score
1,311
Location
AR-Arkansas
First Name
Ken
Truck Year
1977
Truck Model
K10
Engine Size
5.3/NV4500/NP205/4:56 gear/35in tires
You must be registered for see images attach
You must be registered for see images attach
You must be registered for see images attach
This coming Friday the 77 goes to the AC shop. Before that can happen I need to relocate the coolant over flow bottle due to AC lines now go through the core support on the passenger side. So this weekends projects included moving coolant bottle to the drivers side and refurbish the KC lights.
 

Camar068

Supporting Member
Supporting Member
Joined
Feb 5, 2014
Posts
4,122
Reaction score
2,960
Location
Kentucky
First Name
David
Truck Year
1986
Truck Model
K10/LM7 5.3/4L60e/np208/3.73/32"
Engine Size
10 yrs Air Force
sweet
 

Madhorn

Full Access Member
Joined
Jan 16, 2017
Posts
618
Reaction score
1,311
Location
AR-Arkansas
First Name
Ken
Truck Year
1977
Truck Model
K10
Engine Size
5.3/NV4500/NP205/4:56 gear/35in tires
Well, the 77 got dropped off at the AC shop yesterday, felt really weird to leave it there. I almost feel violated letting someone else work on my truck without me there. Oh well, with any luck it will be finished Tuesday and I can pick it up Wednesday.
 

Nicholson72

Member
Joined
Dec 26, 2018
Posts
48
Reaction score
13
Location
Ca
First Name
Chris
Truck Year
82
Truck Model
K10
Engine Size
Ls 5.3
Any of you guys have the vss hooked up on the older trannies? I thought about getting the Dakota gauges adapter
 

Crispy

Full Access Member
Joined
Apr 5, 2017
Posts
1,454
Reaction score
1,390
Location
Carbon County, Pennsyltucky
First Name
Chris
Truck Year
1989
Truck Model
Suburban V1500
Engine Size
5.7
Side note for the steam fitting. Dorman 47147 also works and is made of plastic.

You must be registered for see images attach
 

Latest posts

Forum statistics

Threads
41,854
Posts
903,563
Members
33,367
Latest member
texdave
Top