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Old 10-11-2012, 03:00 PM   #8
Airhead Wrangler
Adios Mexico
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Joined: Mar 2008
Location: Back in Seattle, FINALLY
Oddometer: 6,606
Originally Posted by Bluethumb View Post
I thought I've seen others w/ 800 cc motors, usually R80G/S's, upgrade by only swapping out the cylinders.
Usually those are Siebenrock kits. They make 1000cc pistons that match the combustion chamber of the 800cc heads. I'm not sure how much "better" that makes them, but they also have a higher 9.5:1 compression ratio.
R80ST Gets The HPN Treatment
Seattle to TDF on an airhead

Current rides: HPN #834, '93 R100GSPD "red rocket", '73 R75/5 Toaster mongrel, '80 Ducati Pantah 500SL, '92 DR350, '67 Honda SS50, '80 Honda Chaly.
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