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2.5 heads on a 2.2 obs

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I have been researching this as much as I can and haven't found any solid info. I have a 98 obs with I believe a p1 2.2, the spark plugs are not on the valve covers. I have an opportunity to pick up a set of 2000 2.5 soch heads from an rs for pretty cheap. Would this be a beneficial swap at all or would it require more to make it work than it would be worth? I have read that this combo lowers compression ratio, but I see that is mostly going off 2.2t blocks. I know I would need valve covers, and the exhaust header, but I am unsure if my intake would work? And then if there would be any running/running issues. I do need to pass emissions. At this point my 2.2 needs a few oil leaks fixed which look like sepetator or rear main seal so engine removal will probably be coming soon, and I figured swapping heads and doing head gaskets at the same time wouldn't hurt. Any info would be greatly appreciated.

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