On the undercarriage of the car mainly, any ideas for subsititutes that can be used instead of hoses? I've seen where some have used rectangular tubing that went into the depression.

There are a number of options. Look at Phoenixhobbies build. He used round metal tubing and it looks awesome. I looked at electrical conduit but the critical thing is that you DO NOT want to use galvanized pipe with an aluminum engine block due to the whole chemical reaction thing.

Phoenixhobbies

Aluminum conduit is what I have used on both of my conversions. It is my belief that
it also helps in heat dissipation. Other pluses are: it is light, very sturdy and welds good.

Bob

galvanic corrosion is usually from dissimilar metals touching each other. If there is rubber hose connecting the two, effects will be minimal.

Hard to beat hoses. I bottomed out my coolant hoses on a few speed bumps. No issue.

I thing the coolest solution would be stainless or aluminum square tube with welded fittings on each end.
Seems there should be room to come up past the steering rack and under the gas tank and exit into the front trunk.

Maybe a fabricator should look into producing them.

The same reason that I settled on hoses instead on some type of tubing. Although I would love to see rectangle tubing the follows the chanels.

SOT, how would radiator hoses run thru the longs work? Too many curves and restrictions or totally doable?

I have heard of people doing it. But right before the wheel well, if you started in the eng compartment, cutting and routing the hose through the cab then under the gas tank.

Doable for sure. Kent (76-914)'s are run through the longs. Many others as well. The issue (sometimes) is getting the air out of the system initially. Once you do that it's fine. The longs MIGHT also get warm (or so I heard).

Only one probably, from the engine to the radiator. Warm longs in Utah probably not a bad thing either... or in Chicago Now running them thru the center tunnel like I've heard, not too crazy about that one.

On my next conversion, I am going to raise the center tunnel and create a large channel for hoses under center of the car.

Click to view attachment

Seems like there was a Gentleman from CA, I think his name was Tom Truel, or something like that, where he did some kind of tubing at a shop out there? Anyone know of him?

I saw someone run the lines outboard of the longs, under the rocker panels. I don't recall who?
The routing in the back is easy. When you get to the front wheel well it gets trickier.
I have always wanted to redo my car this way.
After seeing just how small of a hose diameter can cool a Suby conversion I am very interested to move mine from under the car, to behind the rocker panels.

This would also allow for easy access into the interior for the heater core, not to mention anything else you want to build out of the system. I like this idea!

I guess I could look into doing that, since I will be implementing the cable shifter, and ditching that console.

Not sure how far up I would need to raise it for clearance?

Could a person use copper tubing and wrap it with that insulation?

I did that... Isolated it with rubber. Then got scared that any current in the coolant system would eat my motor from the inside out.
I pulled all $200 worth of the copper out.
I still have most of it. I would sell, but it sounds nice when the wind blows.