Best top end kit for a high compression 580?

[92seadoo]

Hello everyone,

I'm doing a full rebuild on my modded 580 that will be running on race gas and as of now I'm debating on the brand of pistons i get. I'm looking at Pro X, Wiseco, and WSM Platinums...I wanted to try Wiseco because thats what i used to run in my dirt bikes but I'm hearing mixed reviews on them in ski engines. Any feedback will be greatly appreciated!

 

[92seadoo]

I know the Wiseco's are forged but I'm wondering if they will hold up better with the high compression

 

[Matt Braley]

They are fine they just swell more then others. Clearance them at .007

 

[92seadoo]

How about the Wossner pistons (forged)? Sending my cylinders in to fullboreonline to get them bored, and they offer the Wossner kit.

 

[Matt Braley]

I have not used Wossner but that name comes up more and more. I have the up most respect for Full Bore so if they are calling that a premium piston then I believe them.

 

[wfo speedracer]

I would go with the Wossners over the wisecos, a lot of top notch builders are now using them.

 

[92seadoo]

Thanks for the replies gentlemen..I'll be going with the Wossners