You GREAT VOLVO EXPERTS. I need your help PLEASE. I have a 1987 AQ131A w/ 275 outdrive that needs engine TLC. I have an opportunity to get a 1986 2.1L (AQ130 i believe) w/ 270 outdrive that runs great. 1) what are the characteristics of each 2) are the parts ie... head, manifold,ect interchangeable. Desperate for straight answers and info. Thanks and GOD BLESS!
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