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engine I.D.

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How can i I.D. my engine? I know it is a EA81 but is there any numbers to tell what type car it came out of?

The only obvious way is if there is a label on the valve covers. It will say not to adjust the valves, because the are Hydraulic. There are some differences in cams with certain years of Brats, but as far as I know there is no way to ID them from outside.

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