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I damaged one of my pistons. Cylinder is fine but I need to replace 1 piston and am trying to avoid purchasing the entire kit. The problem is I bought the sled used and don't know what reliability kit was installed. It's a long shot but hoping someone recognizes it from the pics.
2103590
2103591
2103592
 

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They look like SPI t moly pistons. I've used those many times. Doing one right now in fact. For your engine I would replace them both. A set of SPI will run you $230.
 

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Forgot to ask, does the engine have a cylinder shim?
 

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Ah sorry, that makes a difference. Those could be cat pistons, or a number of others.
 

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Kinda looks like MCB pistons.
 
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