Soo the crank in my 91 hf crx is fucked and i need a motor soon. i was thinking of building the motor but dont know if i want to or swap it with etheir a jdm d15b vtec or jdm zc sohc or dohc. im not trying to spend a whole lot right now thats why im going with one of these motors. my question which motor is the best for what i want right now. i do want the car to be quick but i also know their is only so much u can do on a budget of less than 800 or 900. my question is , which is the best motor or am i better of building the stock d15b6 motor?