Engine Swap.

[junorico24]

Has anyone ever got one done? Must be expensive. I have a Daihatsu Charade 1.3 ltr 16 valve which is my second car. All was god until last Saturday when it died on me. The mechanic changed the battery it ran then died again. Prior to that when it was running. I keep hearing this boomin sound at idle speed. Is it the alternator? I bought the Charade with an intention of putting a new engine, a bigger 1.5 or 1.6 ltr conversion. The PO has clocked in 330 330 something K's on this buzzy but strong 1.3 liter engine is surprisingly strong and eager little unit. It runs good but the only thing is it dies.What could it be? I know the battery is not charging or there's some kind of electrical issue going on?

HELP!