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400sm with high compression piston

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Has any installed a high compression piston in their 400sm? If so, how much more power did you get? Do you like the mod? Was it worth it?

I have an 07 400sm with a full yoshi ti exhaust and a 3x3 air box mod. I am considering a high compression piston. If I do that, do I also need to get the stg one hot cams still?

As you can see, I'm trying to do this on a budget.

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A hi comp piston by itself is only good to add a little low end grunt, which can be found cheaper by replacing the base gasket (with an early E style) which almost everyone agrees, is more trouble than it is worth.

Get the Hot Cams. Do a little searching on the forum for the skinny.

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