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Originally Posted by vujade
dished pistons are the low compression bus pistons.
the 914 pistons were either flat or domed.
flat had 8:1 compression
and
domed had 8.5:1 compression
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A little wrong...I think the ratios are right, but 914 pistons are flat top (Euro) and small dish (USA/Canada) BTW way smaller dish than bus pistons.