Re: 2000 Z28 engine replacement
I'd definitely keep the old engine in the car and run Shell 15w40 Rotella oil. It's a little thicker and might reduce the slap and the consumption problem. Having the original engine is definitely a plus in my book. In 20 years the car will be worth something. If you want something to compare to valuation-wise, look to the 20 year old IROC Z28s and see the major price difference between one with it's original engine and a replacement. It's as much as a 50% difference in value. Just my 2 ruble opinion
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