mark 4 454 engine oil cooler lines

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.

TheC5Surgeon

Member
Joined
Aug 2, 2021
Posts
36
Reaction score
15
Location
Panhandle of FL
First Name
Matthew
Truck Year
1976
Truck Model
C20
Engine Size
454
I have a auxillary oil cooler on the 76 454 and need to replace the lines that go from the oil filter adapter to the cooler. After a pretty good search it seems that no one makes a repop so I guess I have to make my own. Any suggestions on fittings / hose type to use? Should I get AN fittings and braided hose or something like the HAYDEN 293 and attach rubber line to it? Thanks for the advice yall.

Matthew
 

Old Guy Bill

Full Access Member
Joined
Sep 10, 2023
Posts
405
Reaction score
1,245
Location
KY
First Name
Bill
Truck Year
1978
Truck Model
K20
Engine Size
400
My local Napa store makes lines for me, I’ve had several different styles of oil & hydraulic lines made there.
 

nvrenuf

Full Access Member
Joined
Jul 30, 2010
Posts
1,857
Reaction score
2,212
Location
Mobile, Al.
First Name
John
Truck Year
1991
Truck Model
K5
Engine Size
454
Check the hose fittings, I thought all of the earlier models had screw together fittings so you only need to source the hose itself and reuse your fittings.
 

TheC5Surgeon

Member
Joined
Aug 2, 2021
Posts
36
Reaction score
15
Location
Panhandle of FL
First Name
Matthew
Truck Year
1976
Truck Model
C20
Engine Size
454
I’m pretty sure they were the hydraulic style but I will check. There’s a chance the fitting could be long gone. Do y’all know the approximate length of the lines if I just get some new ones made?
 

Rickf

Full Access Member
Joined
Jul 29, 2017
Posts
554
Reaction score
690
Location
Grafton NH
First Name
Rick
Truck Year
1974, 1954 & a 1937
Truck Model
K20
Engine Size
350
I used a kit from kbdieselperformance on my '93 6.5TD, not sure if the kit KB-8.1L-EOCL will work on a 454.
 

TheC5Surgeon

Member
Joined
Aug 2, 2021
Posts
36
Reaction score
15
Location
Panhandle of FL
First Name
Matthew
Truck Year
1976
Truck Model
C20
Engine Size
454
Thanks man I will check that out. What do y’all think of making a AN fitting to adapt to it? seems pretty simple just looking into it.
 

nvrenuf

Full Access Member
Joined
Jul 30, 2010
Posts
1,857
Reaction score
2,212
Location
Mobile, Al.
First Name
John
Truck Year
1991
Truck Model
K5
Engine Size
454
AN stuff is great but it might be an expensive option, I would only go this route if you’re planning to keep the truck long term.

On your currant hoses, where the metal meets the rubber is the metal crimped or a hex fitting?
 

Ricko1966

Full Access Member
Joined
Apr 11, 2017
Posts
5,099
Reaction score
7,969
Location
kansas
First Name
Rick
Truck Year
1975
Truck Model
c20
Engine Size
350
Even if they are crimped you can cut the crimp off peel it away and reuse the fittings with clamps. I've always used braided blue power steering hose and AN fittings when I make oil lines,but you can reuse old ends new hose and good clamps. What ever makes you happy. The blue power steering hose is oil resistant,heat resistant,pressure rating is unreal,it doesn't fray and get sharp edges like stainless and its cheaper and east to work with.
 

Attachments

  • Screenshot_2024-08-04_151438.jpg
    Screenshot_2024-08-04_151438.jpg
    66.4 KB · Views: 15
Last edited:

TheC5Surgeon

Member
Joined
Aug 2, 2021
Posts
36
Reaction score
15
Location
Panhandle of FL
First Name
Matthew
Truck Year
1976
Truck Model
C20
Engine Size
454
Thanks for the advice fellas. nvrenuf, ill probably keep this vehicle forever so I might as well. Ricko, I like that idea of using the power steering hose with the an fittings. thinking 1/2 inch or -8 AN sounds close to the original size hose/fitting.
Just read this article, https://www.enginelabs.com/engine-t...-how-to-build-braided-hoses-with-an-fittings/ ,
and think I will give it a try. Now I just need to find the correct thread pitch for the adapters/fittings to mate with the stock connections on the oil filter adapter and cooler.

Matthew
 

Latest posts

Forum statistics

Threads
43,543
Posts
937,657
Members
35,440
Latest member
brantley
Top