BBShark

I am converting a carbed 454 to port fuel injection. I have a big block, square port, aluminum marine manifold that is a crossover style (like an Arizona Speed and Marine intake). This is not a ASM manifold however, it has part #12550669 cast into it. I plan to make a plenum for it but I would like to know the manufacturer of the manifold to gather the correct gaskets and parts. Anyone have an idea who manufactured this intake?

I also found a Mercruiser EFI fuel pump with a built in sump and return. It has no part numbers on it and it needs a new pump. I sent a picture of the pump to Walbro and they cannot match it. My local Merc dealer is not real helpful, he wants part numbers. Anyone know a source for a rebuild kit or should I go the Aeromotive route?

Sorry to ask so many lame questions but this is my first marine engine build. Also, am I making a mistake with the square port intake? Thanks

Darkspoilerzx

If the vst is off a big block from 94-97 the fuel pump part number is 808505. but that is just for a select few. you really have to know what it came off of. Ed