Cooling suggestions k5 454

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.

BryanS

Full Access Member
Joined
Feb 5, 2025
Posts
52
Reaction score
46
Location
Ft Pierce FL
First Name
Bryan
Truck Year
1982
Truck Model
Blazer K5
Engine Size
454
Hi everyone thank you all for the help so far.

83 k5 with 454

PO did some things good and others no so good.

I got this truck from AL and I’m in FL. Buddy of mine drove it down.

Lost the radiator on the way and replaced with whatever they had in stock at 8:45 at night in middle of nowhere outside Valdosta.

So the radiator mostly fits. Is about the right size and is AL. It’s about 2” too short and o can probably find something to make the brackets work OR I can get the right one.

The other issue I have is the shroud does not fit the “new” radiator AND I only have the top half of it.

The he engine swap I think puts the fan slightly lower than original and that’s why the PO removed the bottom half

SO I’m thinking about electric fan/shroud combo to go on either the existing ( 2 inch shorter) radiator or a new correct one.

Any suggestions on brand/ set up? I’m thinking duel fans with thermostat switch’s?

Truck has AC that is not working but is there and plans to fix that once I get this figured out.

I’m in FL and it’s hot here most of the time

Appreciate help and guidance Thank you !
 

nvrenuf

Full Access Member
Joined
Jul 30, 2010
Posts
2,078
Reaction score
2,777
Location
Mobile, Al.
First Name
John
Truck Year
1991
Truck Model
K5
Engine Size
454
Just my opinion….

Use an 83 K30 w/ 454 as the application to shop for parts. Get a factory 4 row radiator and matching shroud then a 7 blade fan with a severe duty fan clutch.

The fan is located at the same height for SBC’s and BBC’s but the distance between the fan and radiator is different. If your truck has a body lift that’s likely the reason the lower half of the shroud.

I’ve got a 454 in a Blazer and this combo worked well.
 

Latest posts

Forum statistics

Threads
45,113
Posts
975,594
Members
38,071
Latest member
Rusty Nuts
Top