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I'm new to this site, and I was wondering if any of you could tell me how to tell a FS from a FS-ZE. I am looking to install the FS-ZE in my car, but when i contacted usedengines.com they said that they sell FS engines, but they may or may not have the FS-ZE engines because they can't tell them apart, he said if i could tell him the difference he could get me one. So is there any difference visually? Thanx
 

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The diffrence on the two engines is that the FS-ZE has VRIS on the intake manifold and the FS-03 does not.I think thats it as far as stuff you can see without taking the engine apart.Also the FS-ZE has a higher compresion ratio.
 
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