Vm motori/mercruiser

Isandler

Recruit
Joined
Jul 8, 2020
Messages
1
Good afternoon folks
trying to find some info on the ecm for 4.2L mercruiser diesel engine, right now we have 250Hp verion, but 300hp version looks damn close, what is the actual difference? can we just swap ecm from 250 to 300? is that possible?
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
Joined
Jul 23, 2011
Messages
47,300
Ecm programming, injectors and warranty accrual
 
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