Removed from a Porsche 914 that was converted in the 80's. Was not an original 914-6. Car was sitting under multiple car covers outside for over 10 years. We Removed the spark plugs to turn over but the engine was frozen. This engine has been in our warehouse in that condition for the last few years. For the auction we juiced the cylinders with oil and got it to turn over. I would say the cylinders probably need to be redone because it was frozen at one time and some rust came out of one cylinder. All cylinders did have 10 percent leakdown except for the rusty cylinder which had 20-30 percent.