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Discussion Starter #1
Im just wondering what is the diffrence in the bottom ends between the 2 besides the pistons? Are the rods, bearings, crank or oil pump diffrent?
 

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Just pistons I believe. Nothing else really significant. The Y7 will give more compression from any head, it has a higher compression height (30 mm vs 29.5 mm)
 

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Discussion Starter #3
hrmm, Im gonna have to check the part numbers im mainly just wondering if the bearings are diffrent. I know with b-series the vtec models have tri-metal bearings which is far superior to the non vtec's bearings. Oh well thanks for the reply
 
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