Are the evo 8 & 9 bottem end the same?
There is almost NO difference with the construction of the nine block in comparison to the 8 block. ONLY ONE difference....The nine has a large eye bolt orifice to provide constant volume and pressure to the MIVEC system. It can either be capped and used on an 8 head or an 8 block can be tapped and used for the nine head. Extremely simple. We built the first 2.4 MIVEC EVO 9 this way.
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