Need Motor

Need a motor for a 1984 Chevrolet Cavalier Z24, does anyone have any tips or suggestions as to where I could find one relatively cheap?

Salvage yard or a donar car.

hey i had blow my engine a litle while ago and i got a rebuilt one for 1,700,i wouldnt get anything else its either brand knew or rebauilt for me i wouldnt buy anything else nor trust it.hope that helps.
got it at part scourse.