502 mag mpi

Automotive powered airboat discussion.
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502 mag mpi

Postby traspalos » Wed Feb 01, 2017 6:02 pm

I just bought a 502 mag mpi. It looks like someone has gone thru it. What I've read about it is 430 hp max 5300 rpm. My question, does anyone know anybody that can set this up I live just north of Houston. I like the idea of the multi port injection but know little about it. Looking for advice. I've been told to pull that stuff of and buy an intake and carb. I'll take advice on that also. It's going on a 18' air ranger that is reinforced and thick poly. Any thoughts?

Southern Airboat Member
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Location: Texas

Re: 502 mag mpi

Postby Moritz » Fri Feb 03, 2017 8:25 pm

Robert More Peforrmance Transmission Angleton ,tx 979 864 3280 30 mile south of houston 288 old

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Re: 502 mag mpi

Postby SWAMPHUNTER45 » Sun Feb 05, 2017 10:51 am

I suggest you have it inspected for internal head and block water passage rust, scale and corrosion as a large amount of those 502 units ended up in raw water cooled applications pumping salt water.

Without a comprehensive boil out and hot tank cleaning it may run hot on a sealed system due to rust and scale. Before you get to deep in it pause and inspect.

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