Pre 84 Trucks 1st gen pickups

21r?

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Old Feb 10, 2020 | 09:58 AM
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swampedout's Avatar
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21r?

Im talking to a guy that has a couple 20r blocks hes letting go for a good price and Im definitely getting one but he mentioned he also has a 21r.
is the 21r a good platform for anything? Or is it just going to be harder to build up because its so uncommon?
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Old Feb 10, 2020 | 12:52 PM
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Probably good if you like a challenge

Where are you located? I wouldn't mind having a spare 20R block to take my time with.
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Old Feb 10, 2020 | 04:11 PM
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i just went from "dont spend any more money on that rusty old truck" to "hmm if i can build a new engine then i can do xy and z..."
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Old May 31, 2022 | 04:11 PM
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Originally Posted by swampedout
Im talking to a guy that has a couple 20r blocks hes letting go for a good price and Im definitely getting one but he mentioned he also has a 21r.
is the 21r a good platform for anything? Or is it just going to be harder to build up because its so uncommon?
parts are hard to come by. Where i live, I had to do a 22r swap because thy couldn't find me the head gasket, and I do not live in the middle of nowhere.
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