502 mpi to 500 EFI ram air intake

crankster · 07-17-2009, 07:24 PM

I would like to know if I can use the MPI Engine Wiring Harness off my 502 mpi engine to run a 500 efi intake ??

I know I will need to reflash the ECM.

Thanks

Z302 · 10-29-2009, 10:24 AM

Did you ever find out if the wiring harness from a 502 Mag Mpi could be used in a 500EFI swap?

jmoore1225 · 10-31-2009, 05:45 AM

How much would a 500efi Intake help over the regular 502efi?

Sweet Addiction · 10-31-2009, 03:36 PM

Yes, your wire harness will be fine. I am in the process of doing my home work for this also when I buy another boat. I am looking at a boat with twin 502 Mpi motors. What has been suggested to me is use a dominator throttle body with matching manifold, Cam specs from 500efi and a computer program. Much better than the 500efi plenum also. Keep your wire harness, and injectors.

Quote:

Originally Posted by crankster

I would like to know if I can use the MPI Engine Wiring Harness off my 502 mpi engine to run a 500 efi intake ??

I know I will need to reflash the ECM.

Thanks

Floatindirty · 11-04-2009, 08:12 PM

How much for the dominator setup?