Posted for "Shannon Knoepflein" <kycshann@kyol.net>:

I have these.  Haven't had to use them yet, but appear to be great.
I'll let you know.  I found them on a recommendation from Rob Logan.  I
have the cylinder bands and the oil pan pads.
 
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Shannon Knoepflein   <--->   kycshann@kyol.net
 
http://www.reiffpreheat.com/product.htm#Aviation_Consumer_Test