i head on e block - BMW Forum - BimmerWerkz.com
3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

 
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#1 (permalink) Old 06-24-2004, 12:23 PM
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i recently bought an 87 325 with the 2.7L eta engine in it. i wanted to do an i head swap, and im aware that you have to use custom pistons. but does anyone know exactly what compression pistons are needed?
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#2 (permalink) Old 06-24-2004, 01:57 PM
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I have the same car and am considering doing the same thing. Check out www.strictlyeta.net He is a young guy, but seems to know something about the eta engine.
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#3 (permalink) Old 06-24-2004, 04:54 PM
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it's not worth it to swap heads, you lose power, there was an awseome artical on it but it is gone now, i wish i had saved it

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#4 (permalink) Old 06-25-2004, 01:33 AM
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you lose power only if you have mismatched pistons.
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