85 K20 5.3/4L60 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.

hip2bsquare

Member
Joined
Sep 7, 2019
Posts
34
Reaction score
12
Location
85298
First Name
Jake
Truck Year
1986 chevy swb
Truck Model
1986 chevy swb
Engine Size
sbc-5.3 ls
Would you be willing to share "the guy" you are trading for the wiring work? Probably send so e work his way...
Thanks
 

Black Beauty

Member
Joined
Feb 22, 2019
Posts
49
Reaction score
6
Location
Arizona
First Name
Hunter
Truck Year
1985
Truck Model
K20
Engine Size
5.7L 350
Would you be willing to share "the guy" you are trading for the wiring work? Probably send so e work his way...
Thanks
Haha I wish I could. Does excellent work but is painfully slow. But to me that’s worth it.


Sent from my iPhone using Tapatalk
 

Black Beauty

Member
Joined
Feb 22, 2019
Posts
49
Reaction score
6
Location
Arizona
First Name
Hunter
Truck Year
1985
Truck Model
K20
Engine Size
5.7L 350
So I have an update...

Pulled the 350 and th400 sold them both.

Picked up a 6.0 lq4 and started the process of getting that put in. Currently stripping the harness off the engine and am waiting on motor mounts to come in.

Rebuild kit for my 208 is here so I’ll tackle that while my guy is cutting down the harness and creating a new one. Some pics here I’ll update as I go along. Right now just been cleaning everything and gunna get it ready to paint and bolt in.
You must be registered for see images attach

You must be registered for see images attach
 

HotRodPC

Administrator
Staff member
Admin
Joined
Aug 29, 2010
Posts
47,014
Reaction score
9,011
Location
OKC, OK
First Name
HotRod
Truck Year
85 K20 LWB
Truck Model
Silverado
Engine Size
454 - Turbo 400 - 3.73
Cool, a 6.0 even !!! Have you found a 4L80-E yet? Your 208 should already have the 32 spline input.
 

Black Beauty

Member
Joined
Feb 22, 2019
Posts
49
Reaction score
6
Location
Arizona
First Name
Hunter
Truck Year
1985
Truck Model
K20
Engine Size
5.7L 350
I am waiting on they guy who I picked up the 6.0 from. He had one but his partner didn’t know it was sold already(is what it is). Rebuild kit for the 208 is here, mounts came in but don’t fit??? I’ll post pictures when I get home tonight. Gunna leave the motor as is for now, everything looks good on it, plugs, wiring, oil all checked out and seems to be on the up and up. Later on down the road I’ll get into a cam and stuff. I’m looking for reliability in the truck right now so I’m not trying to put my hands into anything I don’t need to.


Sent from my iPhone using Tapatalk
 

Black Beauty

Member
Joined
Feb 22, 2019
Posts
49
Reaction score
6
Location
Arizona
First Name
Hunter
Truck Year
1985
Truck Model
K20
Engine Size
5.7L 350
Just picked up a 90/91 burb gauge cluster. Looks to be in pretty decent shape. I’ll clean it up. The guy who’s gunna help me wire the whole thing is going to stop by tomorrow and we are gunna go over all the little stuff that I need to get/do before we actually start to wire.


Sent from my iPhone using Tapatalk
 

Black Beauty

Member
Joined
Feb 22, 2019
Posts
49
Reaction score
6
Location
Arizona
First Name
Hunter
Truck Year
1985
Truck Model
K20
Engine Size
5.7L 350
You must be registered for see images attach



Sent from my iPhone using Tapatalk
 

Black Beauty

Member
Joined
Feb 22, 2019
Posts
49
Reaction score
6
Location
Arizona
First Name
Hunter
Truck Year
1985
Truck Model
K20
Engine Size
5.7L 350
You must be registered for see images attach



Sent from my iPhone using Tapatalk
 

Black Beauty

Member
Joined
Feb 22, 2019
Posts
49
Reaction score
6
Location
Arizona
First Name
Hunter
Truck Year
1985
Truck Model
K20
Engine Size
5.7L 350
Just an update,

Picked up the trans, transfer case is rebuilt, next step is cleaning and painting. Pulled valve covers and front accessories off intake is next. All new seals and gaskets. Mounts came in and have been put on. We are making progress!


Sent from my iPhone using Tapatalk
 

Black Beauty

Member
Joined
Feb 22, 2019
Posts
49
Reaction score
6
Location
Arizona
First Name
Hunter
Truck Year
1985
Truck Model
K20
Engine Size
5.7L 350
You must be registered for see images attach



Sent from my iPhone using Tapatalk
 

Black Beauty

Member
Joined
Feb 22, 2019
Posts
49
Reaction score
6
Location
Arizona
First Name
Hunter
Truck Year
1985
Truck Model
K20
Engine Size
5.7L 350
You must be registered for see images attach



Sent from my iPhone using Tapatalk
 

Black Beauty

Member
Joined
Feb 22, 2019
Posts
49
Reaction score
6
Location
Arizona
First Name
Hunter
Truck Year
1985
Truck Model
K20
Engine Size
5.7L 350
Another update;

Usually work on this for 1-2 hours after work but progress is being made. Got water pump and power steering cleaned and painted. Have to say not happy with the orange. Makes me think it looks holloweenish. Gunna try a more red color.

Another question- I can maintain the ls stock exhaust manifold, correct? Or do I HAVE to go aftermarket? I did some measuring and I obviously have to take them off but just got me thinking(worries actually). I did not budget for exhaust manifolds because I’m sure I read somewhere that it’ll fit without cutting.
You must be registered for see images attach



Sent from my iPhone using Tapatalk
 

Black Beauty

Member
Joined
Feb 22, 2019
Posts
49
Reaction score
6
Location
Arizona
First Name
Hunter
Truck Year
1985
Truck Model
K20
Engine Size
5.7L 350
You must be registered for see images attach



Sent from my iPhone using Tapatalk
 

Black Beauty

Member
Joined
Feb 22, 2019
Posts
49
Reaction score
6
Location
Arizona
First Name
Hunter
Truck Year
1985
Truck Model
K20
Engine Size
5.7L 350
You must be registered for see images attach



Sent from my iPhone using Tapatalk
 

Camar068

Supporting Member
Supporting Member
Joined
Feb 5, 2014
Posts
4,156
Reaction score
3,013
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
agree....they look fluorescent to me. Off-set with silver/grey or lighter black? Just a thought. Or same black lol.
 

Latest posts

Forum statistics

Threads
42,109
Posts
909,266
Members
33,595
Latest member
T3rraBeara
Top