I will send you a PM about the head.
The Wiseco is a forged piston (stock is cast). There are two models of Wiseco available ....and a few different sizes. If your cylinder is not damaged then a 94mm piston is available - if you need to bore the cylinder then you can get larger pistons in 95mm, 96mm or 97mm. Most go with the 97mm to get the most bang for the buck.
Originally the only Wiseco that would fit was made for the DR650 - but it would work in the Savage. The piston offered an improvement in compression and you need to run Premium fuel. These pistons work well and I have been running a 95mm in my engine for 15,000 miles......there have been a lot of these pistons used in the Savage engine and I have only heard two failures - both of them were from the cylinder being bored improperly (one was too tight and one was too loose). These pistons provide better performance than the stock piston.
Recently Lancer has begun to have some custom pistons made for the Savage that have an improved design for use specifically in the Savage. They are flat top pistons and have an improved quench area. So far I believe DragBikeMike is the only one who has installed these new design pistons and he has had very good results. The new design provides a bit more power, better fuel economy and runs cooler than the other Wiseco or the stock piston.....premium fuel is required.
I can send you a stock piston for free - it is used and you would need to buy a new set of rings.....for a few dollars more than the cost of the rings you could buy a new Wiseco that includes rings.
Flushing out the bottom end can be done by taking off both side cases and rinsing out the crankcase with kerosene, diesel fuel, mineral spirits or parts cleaner. If you can get the engine into a parts cleaner with a pump that would be the best as the pump allows you to wash and flush better.
http://suzukisavage.com/cgi-bin/YaBB.pl?num=1436923466/15http://suzukisavage.com/cgi-bin/YaBB.pl?num=1603308664Lastly......I do have some 5 speed bottom ends that are not damaged and could be used to build up a new engine. If it turns out your bottom end is not salvageable you could get one of these engines pretty cheaply - we would have to figure out how to get it to you. I am not anxious to try and ship a compete bottom end - I have stripped and engine down to the basic bottom and and I believe it fit into a Large Flat Rate box when the cylinder studs were removed. I do have an engine with the stock cylinder and piston still attached.