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h.o verses regular

516 Views 2 Replies 3 Participants Last post by  outforawhile
I am fairly new to diesels. I just bought a 2001 dodge diesel quad cab long bed. I was wondering if someone could tell me what is the differance between the two motors . PLease let me know thanks.
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ho is 10 more horse, slightly higher compression, i dont know what internally is different.
Also, if I am not mistaken I believe that the 03 and 04 HO did not have a catalyst>
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