86Mm Pistons Upgrade

[205freak 7 1 Cars]

Hi, im gonna build a xu10 8v with a diesel crank and i would like to change the std pistons in order to raise the compression and i would like to know if these pistons are duable, going to show some pics of it:

 

xu10 8v pistons spec:

Standard Size [sTD]:

Top Land Height [mm]:8,5

Recess Depth 1 [mm]:5,02

Bolt length [mm]:62

Compression Height [mm]:40

Production Number:86 V 131

Component Number:1. R 1.5

Bolt Ø [mm]:22

Machined:with cut-out for oil jet

Cylinder Bore [mm]:86

Length [mm]:65

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The spec of the ones i would like to use:

Valve Pocket Depth 1 [mm]:2,6

Bolt length [mm]:69

Compression Height [mm]:34,7

Production Number:86 V 32

Component Number:1. R 1.5 CrP

Bolt Ø [mm]:22

Cylinder Bore [mm]:87

Length [mm]:77,3

Are they duable or not?!??!

[205freak 7 1 Cars]

The cylinder bore on these pistons are 86mm instead of the 87mm as shown! Will they be sitting below deck since they have a smaller compression height than the std ones??!!

 

Any thoughs would be helpfull!!!