id say factor in the car KBB price, with the price of the engine
how much was the engine, dude no matter how much u sink into a car, the value doesnt always go up the way u think, my accord iv sunk over 2500 after the 5g's i payes for it, most ill probably will get for it is 4500 if that, u said u got it for 600 $$ rite, u droped the new engine, hell 4500-5000 over 600 that u payed for, shiit id sell it in a heart beat and buy myself an Ek9