Best Source for preshaped 240 hoses?

Unfortunately for your effort, most of those hoses are NLA from the dealer. The cost to create reproductions like what you find on Motorsport Auto (http://zcarparts.com) or JDM Car Parts (http://www.jdm-car-parts.com) is not trivial. There weren't a lot of these cars built, so the set up costs for reproductions is spread out over fewer units.

Sorry - what's NLA?

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There is a small company here that makes hoses to suite. They don't actuallt preform the rubber hose, but instead they insert a thin walled copper tube. Then they bend the hose to the shape you want.

I have seen someone on this forum do it with his vac hoses to the brake booster using a similar method.

Trying to remember his name?. It will come back to me aventually....

Found it. In Post nr. #129 Hardway changed the vac hose using this method. You could ask him what his experience with this is.

@Hardway

@Mike This thread might be better in the "help me" forum section? Since it is not really a tech guide atm anyway.