4.3 Upgrade

PigPen4x4

Seaman Apprentice
Joined
Jan 10, 2010
Messages
32
So my old '87 Pachanga has 1 dead hole (25 PSI) and one very weak hole (75 PSI).
No wonder she ain't topping out where she should.
I came across a '01 Mercruiser 4.3 EFI, and thinks to myself, hmmm that might be cool!
Is there anything specific about this engine that would prevent this?
I know the one piece manifolds have to go, since (among other reasons) I have through the transom exhaust with mufflers.
Is the EFI system self contained to the engine? I'm also guessing I would have to change the fuel pump. Does the EFI need a fuel return?
Is $2400 a fair price for the complete engine? It's a little more than I wanted to spend, but, EFI. Hmmmmmmm :cool:
 
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