[speedyblue]

I've got an N42 L28 motor.
If I change my pistons to the flat top ones from the later model engine and do nothing else I should get a 10.4:1 compression ratio
Do the pistons have all the same measurements to do this
eg. pin height
the rest of the engine is in good nick but the rings need replacing so I thought I would try this.
How much would you pay for a set of pistons, new or second hand in the standard diameter. I can't get them easily in Australia so I might have to get some sent in.
The N42 Motor is the only one they got here apart from a handfull of imported P90's

 

[speedyblue]

both block and head are N42
I got the engine and a gearbox for $300 and it just needs rings. I thought I'd try to up the compression while I'm at it 10:1 should be good though Enough to beat all the turbo buzz boxes at the broadwater car park o nthe Gold Coast