355 'Engine' Steel Braided Lines

As part of my F355 build plan, I'm putting together a list of engine out tasks, and up to looking at the various lines running through out the engine bay.

Has anyone looked at, or actually made the change to, steel braided lines for times like Fuel, Engine Oil, Coolant and so on, to protect them from the heat with the engine bay?

 

The fuel and oil lines are braided steel. The oil lines have insulation over them as well (that's the thick red stuff). If you're talking braided AN fittings, it can be done and I think there are a few challenge cars that have this. I looked into it and it's doable - the main problem I saw was that the fittings Ferrari use for the oil lines (I believe they're european DIN) are small for the line size, so when you switch to AN the lines get a lot smaller and I was a bit worried about them being a flow restriction. I went down the rabbit hole on those and in the end decided that when they need replaced every 10-15 years, just buy new ones.

The coolant lines imo juice not worth the squeeze. They're not a major failure point for anything other than age and easy to change out during a major, and most good kits include them.

 

Steel braid Aeroquip style hoses are not designed to protect the hose from excessive heat. They are designed to provide additional protection from physical abrasion damage. They do a very poor job of heat protection. Its still the same rubber internally. If you want to protect hoses from heat you use Aeroquip Firesleeve or an equivalent. This is a landspeed record streamliner I crewed on and every single hose in it had Firesleeve. Its very effective.
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This was my land speed car, back in the day. Something every 13 year old should have had.

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