Offshoreonly.com - updating to 502 mpi in old boat

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big green

06-08-2015 08:08 AM

updating to 502 mpi in old boat

ok little insight if i were to to remove my carburated engines out of my 1985 boat and want to put 1997 mpi 502's in will they plug and play or is there changes needed and thanks in advance

Baldie

06-08-2015 10:26 AM

Quote:

Originally Posted by big green (Post 4314496)

ok little insight if i were to to remove my carburated engines out of my 1985 boat and want to put 1997 mpi 502's in will they plug and play or is there changes needed and thanks in advance

If you have the 10 pin connector already in the back, it will mostly be a plug and play deal as long as the motors are 100% complete.

Trash

06-09-2015 04:40 PM

Quote:

Originally Posted by Baldie (Post 4314567)

If you have the 10 pin connector already in the back, it will mostly be a plug and play deal as long as the motors are 100% complete.

Concur. The 10 pin is merely a transport for data from engine to helm, starter, ignition, tach readings, temp etc. The motors are virtually stand alone and ready to run as is. The EFI portion doesn't know or care what boat its in. I've seen a guy put a 350 EFI/Mag MP motor in a pickup.

dereknkathy

06-09-2015 05:47 PM

So how did he hook up the shifter cables?

Trash

06-09-2015 06:29 PM

No shifter cables used and obviously non-marine exhaust.

dereknkathy

06-09-2015 06:49 PM

was supposed to be funny...

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