slant 6 overheating

a New radiator is about $150, for a car without A/C;
from Advance Auto Parts/Parts America.
well worth the money. Less than $200 for the bigger one.

http://www.partsamerica.com/ProductDetail.aspx?MfrCode=PCE&MfrPartNumber=433354&PartType=31&PTSet=A


smaller non a/c radiator



http://www.partsamerica.com/ProductDetail.aspx?MfrCode=PCE&MfrPartNumber=433527&PartType=31&PTSet=A

Larger radiator heavy duty cooling or A/C car.