Leave it alone. Preserve it as best you can. No point in hacking up a perfectly mint car. Only way I'd be taking that engine out and putting an SR in it, is if it was a brand new long block... and even then, I'd wait.
Leave it be. Keep it in the garage and keep it mint. If you want something to put an SR, go buy another one that has a busted motor in it that's on its last leg and swap that.
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