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Chainsaw
Husqvarna 50/51/55 parts interchange
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<blockquote data-quote="Roanoker494" data-source="post: 3393222" data-attributes="member: 53903"><p>I have a 50 special here also, the thing looks brand new but has a scored piston. The special was only available for one year and it actually came with the larger 45mm model 51 top end but it still had the older model 50 choke system. NOS stands for New Old Stock, which just means it is a new factory part that has been sitting on a shelf for years. The quickiest and cheapest upgrade to your saw would be a 46mm model 55 top end but you likely would not see that much more power. In my opinion porting is where the power will be found.</p></blockquote><p></p>
[QUOTE="Roanoker494, post: 3393222, member: 53903"] I have a 50 special here also, the thing looks brand new but has a scored piston. The special was only available for one year and it actually came with the larger 45mm model 51 top end but it still had the older model 50 choke system. NOS stands for New Old Stock, which just means it is a new factory part that has been sitting on a shelf for years. The quickiest and cheapest upgrade to your saw would be a 46mm model 55 top end but you likely would not see that much more power. In my opinion porting is where the power will be found. [/QUOTE]
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