Vehicle info: Toyota Corolla 1990, small body

Hi mga tsikoters,

I want to replace my cars engine. I'm starting to notice some engine malfunctions and I don't want to opt for overhaul.

I'm located in Dasmarinas Cavite. Meron ba kayo suggestion kung san ako makakakuha ng murang engine for my car?

May suggestion ba kayo kung ano maganda ipalit?

My budget is maximum 25K.

Thanks...