Something isn't right...engine rebuild

[catech11]

they are I pistons and rods, bought them from cabriolet.

I checked several times to make sure the spare motor was from an I car, and from what i found it was just a pre 88 I model. Either i was wrong, or it was a stroker motor

[reelizmpro]

You didn't think to double check the parts you were installing were correct so now you have to pull the crank.

Or they decked the block too much.

[Todd Black 88]

Did you use the original I rods with the new crank, or the rods from the other motor the crank came from?

Sounds like you have the 2.7 l eta crank and the 135mm I rods and pistons.

[catech11]

1989 325i

My first rebuild, bought the car and it came with a spare motor. Ended up using the crank from the spare because a bearing had spun in the original. I didn't think to check the crank throw on the new one because i thought it was from an I engine as well.

I went to put the head on and it does not fit, my only explanation is that it is an "e" crank with the longer throw. The pistons are a little over 4mm above the block at TDC...

Advice?