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Ranger aficionado
Joined: Mon Apr 23rd, 2018
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Headers + leaks = normal
+1 on the Percy's gaskets.
The Hedman headers on my 302 have never leaked yet. Percy's aluminum gaskets are wonderful. Along with proper locking bolts, it makes for a very nice leak free connection. My header bolts also never come loose like many complain about and they're just el-cheapo locking header bolts. ProComp or some such brand. I attribute that to the Percy's aluminum gaskets maintaining a nice even load against the bolts regardless of heat levels. They're a multi-layer (peel-able if necessary) aluminum gasket. Using correct exhaust connections also makes a huge difference, keeping stresses off of the headers themselves. The exhaust system having the right amount of flex, but not overly flexible and loose systems, also helps. I used rubber hangers on my custom mandrel bent stainless exhaust system. It's been flawless and leak free to this day.
GB :)