6.8l JD March 31, 2022 11:27AM
Is there any classes that these engines could be used in. They are damn good ones in tractors.
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Re: 6.8l JD March 31, 2022 01:37PM
With a slightly smaller bore they should be good for a 410 LLSS
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Re: 6.8l JD March 31, 2022 01:52PM
Well it is a 414 cid motor, so in theory they could be used in a LLSS type classes. Typically Waterloo vs Dubuque blocks, the Waterloo is stronger, and heads are better flowing I believe. That said there are versions of the 6.8 heads with a dual intake, but pencil injectors. I'm not sure which ag tractors used the 6.8, but they were everywhere in the C&F side and OEM engines.

Yes, they are, and always have been a really darn good motor for the most part.
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