I can't speak to the camshaft but the Mahle pistons and cylinders are good quality.  Since you have it apart you may want to check your rings to be sure they are in good shape and that they are all oriented in the proper way (so that you don't get blow by if the gaps are aligned).

Hope this helps,
Ken Wilford
John 3:16
www.vanagain.com

-------------- Original message --------------
From: thomas LaPointe <vanagonmail@GMAIL.COM>

> after pulling down our so called "rebuilt" 2.0 air cooled I inherited. I
> noticed the cam is bad as I suspected.
> 1. is there a "better" cam or cam grind I should use on this ex Californian
> injected 82 Westy? this engine only had about 4-500 miles since the
> supposed rebuild by a shop in Colorado springs many years ago. the cam has
> uneven surfaces on the larger lobes and I cannot believe that someone would
> install this.also we noticed that the main bearings had uneven wear on one
> side. sheesh!
> 2. it has Mahle of Brazil Pistons and cylinders. how were the quality of
> these?
> thanks, Thomas
>
> --
> 1985 Full Westy "Rustfalia"
> 1982 Full Westy "dead engine on the mend"
> 1991 GL "smokers cough"
> 1972 Honda Z600 2 cyl