Quote:
Originally Posted by duxthe1
I don't think there is anything to be gained by swapping pistons. The 104.980 has a smaller combustion chamber than the 103 which accounts for the difference in compression ratio. For all intents, the reciprocating assembly is identical between the two motors, discounting the 2V and 4V valve reliefs.
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I think this way beacouse m103 pistons have dishis and m104 pistons are flat, like on picture. what are you think about?
m104 piston
m103 piston
