Heater Hose Relocation – V8

[blackknight]

Originally Posted by Cam 427

The plastic checkvalve looking things in the original hoses are just connectors.

precicsly they are quick connects / quick disconnects.

[motorhead]

Originally Posted by 67motorcat

The hoses are running inside the ABS perch.
They are protected by the heat shield,Run split conduit over the hoses to protect from chaffing.
It's tight,but fit perfectly.

Originally Posted by caverman

Nope...no where near the exhaust. There are some openings in the bracket holing the ABS module. You use that to go through.

Thanks for the info. I went out and looked at mine last night and I see what your talking about. Great job Guys!

[d69chris]

Originally Posted by 67motorcat

I did mine as well.
The funny thing is the 5/8 nipple on the firewall goes to the 3/4 nipple on the water pump.
And the 3/4 nipple on the firewall goes to the 5/8 on the water pump.

I wonder why GM did that
Folks need to be sure to get it the rite way.Use the correct diameter hose at the firewall and spread the 5/8 hose over the 3/4 nipple at the water pump.Less chance damaging the heater core that way.

I wonder how many people have going to the same size nipple both ways and if it would make a difference?The water control valve could be impacted with the flow of water going the wrong direction?

So the 3/4 hose looks like it works best on the firewall, is it 5/8 on the other end that hooks to the water pump or do you really squeeze it? Picture almost loks 5/8. Then the 5/8 on the firewall has to be stretched over the 3/4 on the pump? that's where the WD comes in? Looking to order hoses and do this next weekend.

thanks in advance

[67motorcat]

Use 3/4" hose on everything.
Sounds wierd but works perfectly.

You will see what I mean when you install them.

[caverman]

Actually from what I remember it's both 5/8 and 3/4 on both hoses. In other words looking at connection points on the firewall the one that's 5/8 will go to the one that's 3/4 on the waterpump. Same in reverse on the other side.

If you order the hoses listed in the first thread they'll install perfectly (with a little length trimmed off one hose).

[67motorcat]

Originally Posted by caverman

Actually from what I remember it's both 5/8 and 3/4 on both hoses. In other words looking at connection points on the firewall the one that's 5/8 will go to the one that's 3/4 on the waterpump. Same in reverse on the other side.

If you order the hoses listed in the first thread they'll install perfectly (with a little length trimmed off one hose).

That could be very true.
I did not use the pre-formed hoses,just standard 3/4" heater hose from Napa.
The larger fitting on the water pump is actually bigger than 3/4" thus requiering a slight bulge to fit over.
The larger fitting at the fire wall fit the 3/4" hose perfectly.
The smaller fitting at the firewall fit just ever so slightly loose with the 3/4"
The smaller fitting at the water pump was easy loose.
I used worm clamps everywhere.

Kinda wierd if you ask me

[caverman]

Yes it is weird and your method of using 3/4" hose will work as well. I've heard of some people doing it with only the 3/4" as well. One side being pretty tight to go on and the other loose but with a tightened down clamp.

The ones I got off Amazon that are listed in the initial post already come with the slight buldge where need though. Makes it easy to deal with.

[67motorcat]

Originally Posted by 67motorcat

I did mine as well.
The funny thing is the 5/8 nipple on the firewall goes to the 3/4 nipple on the water pump.
And the 3/4 nipple on the firewall goes to the 5/8 on the water pump.

I wonder why GM did that
Folks need to be sure to get it the rite way.Use the correct diameter hose at the firewall and spread the 5/8 hose over the 3/4 nipple at the water pump.Less chance damaging the heater core that way.

I wonder how many people have going to the same size nipple both ways and if it would make a difference?The water control valve could be impacted with the flow of water going the wrong direction?

Correction from this post.
I was going to use standard 5/8" hose on the firewall side but later decided against it.
It was going to take way to much force to get it on there and there was no way it was going to fit over the larger water pump fitting.

Again,the pre-formed hose may not be an issue.

[d69chris]

Ok, now I'm confused..........

Will order the two hoses off Amazon and see where it leads.

Thanks Guys

[caverman]

Originally Posted by d69chris

Ok, now I'm confused..........

Will order the two hoses off Amazon and see where it leads.

Thanks Guys

What are you confused about? Hopefully we can clear it up for you.

Get the hoses off of Amazon and you'll be good. Hardest part is getting the hoses off the firewall because they are stuck on there pretty good and there's not alot of room to get your hand up in there.

[Eric Baker]

I got my hoses from Napa. They were cross referenced from the Autozone part numbers through the Dayco website. In fast, they are Dayco hoses. They are 5/8" hoses with a 3/4" flare on one end, the ends being opposite for each hose. They needed slight trimming to make them the same length just like others stated. They worked out great and fit perfectly.

[2SSRSTUVWXYZ]

Livernois motorsports has a hose relocation kit for sale on their website

[caverman]

Originally Posted by 2SSRSTUVWXYZ

Livernois motorsports has a hose relocation kit for sale on their website

I couldn't find it but I'm willing to bet it's alot more than $35.

[Merc]

Nice work! Certianly look's to be a good option and cost saver.