What type of sleeper engine could i put in my truck?

[Jordan]

I own a 89 isuzu pick-up. I want to replace the engine with a sleeper but im not sure wat kind i need.
I currently have the stock 2-cylinder engine.
Could someone please help me

 

[zoobiemz]

Dont know about the 2 cylinder engine but.. almost any suzuki motor may fit in the truck if you really wanna have fun and have some extra cash find and old chevy truck with a 350 or 305 use the chevy aas a donor and build it from there.