Exhaust Manifold Nuts

1olbull said:
I have went with titanium exhaust manifold nuts.
They remain tight much better.

I found a link for you .. .
M8/10/12/14/16/18 GR5 Titanium Flange Hex Nut For Motorcycle Centre Shaft | eBay
Click to expand...

We may be quibbling unnecessarily -- according to Wikipedia (and of course, we do not have a standards certificate for $7), the seller claims them to be 89% titanium (with a mix of Vanadium and Aluminum making the alloy), and most folks here would consider that to be "Titanium".

To wit: Ti-6Al-4V
 
I kept loosing header cover bolts so finally bought some stainless hex cap bolts from the hardware store with lock washers. Many many miles later and all is well. The manifold bolts were loose last time I checked- note to self, check them again. Big engine, lots of vibration.....
 
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