Gary, it looks like a vinyl covered high pressure hose. The hose itself should have some writing about what temp range it's good for on it. It should be fine up to around 300 degrees, which is more than enough. -- Frank Swygert Publisher, "American Independent Magazine" (AIM) For all AMC enthusiasts http://farna.home.att.net/AIM.html (free download available!) -------------- Original message ---------------------- Subject: Oil line modification Date: Fri, 18 Feb 2005 09:17:32 -0500 I am contemplating buying this 390 for my SC/Rambler and have a question about the oil line modification. When looking at the picture of the modification, it sure looks like it is made of a garden hose type material. Would this hold up to the heat of the engine. I have tried to email the seller but no response yet. This would be a great pickup for me as my family and I are going out to Vegas in April and I can crate it myself and get it shipped back to the east coast. Thanks in advance. Gary N CT