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There are too many variables to adequately answer your question.
There were two engines used in the 801 Series.
Early ones had sleeves. Late ones were parent bore.
If your engine is an early one you could just "buy the kit" with new pistons, rings and sleeves. Get a valve job done and you would be good on the top side. If it is parent bore then the questions are, are the bores good enough to just rering? Have they been bored before? How much oversize were they bored? Can they be bored again or will they need to be sleeved?
Then there is the crank shaft. Are the journals still standard? Are they undersized? Can they be reused with new bearings? Has it been ground before? If so, can it be ground again if needed?
Engines are precision machines.
Are you proficient with micrometers to accurately mesure to + or - a couple ten thousthanths?
A dial calipers from Harbor Fright is Not suitable for measuring bores and crank journals.
You will need to answer the questions I have asked to determine the best course of action to take.
 

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I know more about the 3 cylinder Fords than the pre 1965 four bangers but am pretty sure if your engine uses a screw on oil filter it is parent bore. Canister oil filter equals sleeved. Others here can confirm or deny that.
 
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