Cylinder material question Iron types vs. Nikasil type

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Whitworth Ranch

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I've had good success with Nikasil-type plating in an air-cooled 500 single with iron cylinder. With a nicely skirted JE piston and Total Seal rings, this is an excellent combustion chamber (no oil) and shows virtually no wear after about 5000 miles.

As I ponder a rebuild on my '74 Commando, I'd like to hear educated opinions about ductile iron, just a straight bore job on the stock cylinder or if anybody is a fan of Nikasil-type plating on a Commando. Relative merits? Durability?

This would be a street engine that I would want long service, low oil consumption and quiet, smooth running from. Within the design limitations, of course.
 
It is not something I have tried on a Norton -but always wanted to.

I have used the Boretech treatment and had good results. Jim
 
Whitworth Ranch said:
I've had good success with Nikasil-type plating in an air-cooled 500 single with iron cylinder. With a nicely skirted JE piston and Total Seal rings, this is an excellent combustion chamber (no oil) and shows virtually no wear after about 5000 miles.
Click to expand...

Who does this and what is the cost?
 
dennisgb said:
Whitworth Ranch said:
I've had good success with Nikasil-type plating in an air-cooled 500 single with iron cylinder. With a nicely skirted JE piston and Total Seal rings, this is an excellent combustion chamber (no oil) and shows virtually no wear after about 5000 miles.
Click to expand...

Who does this and what is the cost?
Click to expand...


I'll have to look at the paperwork to pull out the figures when I get home later. I don't recall it being ridiculously expensive, but I was also buying Carrillo rod, fancy valves and springs, etc., on the build, so it may be a comparative recollection.
 
Or you can look at the Millennium Technologies web link provided by Jim!

That Bore Tech thing is interesting. I had not heard about that. Diamond-hone plateau finish is same for Nikasil.
 
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