Well of course it's been thrashed, why else would you build an rb26, to baby it? Put put around the city? It doesn't matter anyway as long as it has been built right and maintained properly. Why else are you planning on spending 20k on a motor to chase big power? I assume when you looked at buying your skyline you were looking for a car that had this in the ad right? "never boosted, never thrashed, never see a track" If you were to buy a motor you would be pretty stupid to not get a compression and leak down test done to it anyway to make sure it's in good shape.