Jtrux Posted July 2, 2017 Posted July 2, 2017 I'm going to be purchasing a 4.0 from a 91 and before any money exchanges hands, I'd like to know how to identify onw over the other. The engine is not in the truck so I want to make absolutely sure it's what I want before paying obviously.
HOrnbrod Posted July 2, 2017 Posted July 2, 2017 Check the block casting number. 1987-90 53005535 (8933002665)1991-95 530084051996-98 530205691999-04 53010449
Jtrux Posted July 2, 2017 Author Posted July 2, 2017 Perfect. Thank you. Sent from my LGLS992 using Tapatalk
omega_rugal Posted July 3, 2017 Posted July 3, 2017 Check the block casting number. 1987-90 53005535 (8933002665) 1991-95 53008405 1996-98 53020569 1999-04 53010449 which one you think is the best when it comes to strenght? durability? less known problems?
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