2000 isn't a lot of money to do it properly regardless of engine you choose

Rods about 700 yep
Pistons about 600
Then you NEED the full works of a head to flow it to get proper power plus a 5th injector never asked Karlos how much that was gonna cost but I bet you're talking the best part of the rest of ya money plus a bit more.

Plus you still need all the other bits and pieces like gaskets/pumps/seals etc - You're looking more at 3k or there abouts coz you will need it setup properly too and dont forget the labour to build the engine properly.

Shings