I have a 91 Ranger that I am trying to get a reman motor for. They changed from flat tappet to roller in October of 91. I have the flat tappet engine. 10/90. Only long block I can find is the roller cam. My question is can I use the roller cam long block? And will my intake and other accessories from the flat tappet engine switch over to the roller cam engine? I can verify all parts should transfer over. Only one I can't verify is the intake manifold which is important because heads are a different part number.

Have you verified the tappets or are you going purely on yr/date? Generally, domestic vehicles and many imports that are at or above the 06/year are often the following upcoming year build platforms.

i.e. a model 09/10 can be considered in build platforms a 2011; whereas in the sense of say 2011 being the last year of the US based Ranger remains at a 2011. As a side note: the last year Ranger for 2011 had differences in the engine different from previous years which were pre-cursors for the 2011-2018 T6 World Ranger everyone else got but not here in N. America.

Also, what warrants a reman engine in replacement of a repair in nature?

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