So trying to just confirm the deck height of the 3k at 185.5 and the 4k at 196.0?

Deck height being from crank centreline to top of block.

 

Doesn't seem to add up with stroke and piston height measurements as follows....

 

So 3k deck height would be 66/2 stroke + 113 rod + 35.5 piston height = 181.5mm

 

And 4k deck height would be 73/2 stroke + 120 rod + 35.5 piston height = 192mm

 

What is missing here?

Maybe the thickness of the little and big end bearings together when measuring the internals? Not sure where you measured from when it came to rods and gudgeons? Could have been missed? Not sure...........

 

That 4mm went walkies somewhere...............

Edited May 17, 201412 yr by Clapped out

Yeah man, seems odd...

 

Those measurements are all

 

centre to centre for rods

centre of crankshaft to face of block

centre of pin to crown height for pistons (Ie not to the dish or the dome)

 

Hmmmm