OVERHEAT ? pls HELP . chevy 454 c20 81

[JohnnyPopper]

I was just kidding about your finger...

Well, at least you found where it's coming from.

They aren't that hard to change out if you have the tools and patience.

If you try to tackle it, remember that the fan shroud (most pain in the butt) splits at the half, so you can take the top half off. Saves a lot of time and aggravation.

[sammysamm]

hey i noticed that the leak is coming from a strange area. like the area where the fan blades are bolted to the water pump i will circle exact location of the leak in picture below. im guessing that means i need a new water pump and possibly something else.


in photo i circled area. it is literally spraying/leaking from behind that pully and pouring down onto pully below. i have put arrow on spot

https://imgur.com/hpVoStr

[JohnnyPopper]

Looks like you're going to be the proud new owner of a GM water pump!

If you got down under the front with a strong light, you will see a small hole on the bottom side of the pump, right where you're describing.

When the pump shaft seal goes, that's where it leaks.

[75gmck25]

When you replace the pump, consider using a Stewart Stage One high flow water pump.  The stage one cast iron pump isn't a lot more expensive than a stock pump, but has a better impeller than a stock GM pump, and will move more water.

Bruce

[JohnnyPopper]

That's a good tip Bruce!

I wasn't aware of a higher volume pump.

Makes even more sense for a BB.

I'll keep it in mind when I finally get my C-10 back together!

[sammysamm]

When you replace the pump, consider using a Stewart Stage One high flow water pump.  The stage one cast iron pump isn't a lot more expensive than a stock pump, but has a better impeller than a stock GM pump, and will move more water.

Bruce

ok thx . hey bruce what pump do i need to order. for 454 1981 BB .

https://www.stewartcomponents.com/index.php?route=product/product&path=60_66&product_id=77

OR
https://www.stewartcomponents.com/index.php?route=product/product&path=60_66&product_id=78

or post link of one to buy .

[JohnnyPopper]

Your truck is a 1981, right?

Chevrolet Big Block Long Stage 1 - 11113  (model Number)  is for 73-86' light trucks.

Get er done!

[sammysamm]

yes it is a stock 1981 454 BB c20 chevy. camper special

[sammysamm]

Also can you show me link or tell me what gaskets i should get for that Chevrolet Big Block Long Stage 1 - 11113  .thx for your time

[sammysamm]

and also i would need a bolt kit ? im guessing


https://www.stewartcomponents.com/index.php?route=product/category&path=62

[JohnnyPopper]

It should be just an even swap with your current hardware nuts and bolts.

Keep in mind, these manufacturers would suggest that you replace all your truck parts just because...follow the money!

I would ask if they come with gaskets, most do.