Truck intake help

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Jun 5, 2016 | 11:13 AM

SCott5

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Truck intake help

Okay. So I bought a few 5.3s as spares for insurance and I know one was from an 03 or 05 I can't remember but it is iron block and had 706 heads on it and is a GEN 3. The second one I have no idea the year, but it is a GEN IV iron block and 243 heads. Okay I didn't Eden know that there are two different type of cathedral intakes a NBS and a NNBS until yesterday when someone asked me in one of my adds, so I pulled the for sale as so I could do more research. yes I know they look different, but I was assuming they were still the same intake per say. Ok so here are the pics

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Is there anyone who can tell me by the pics if the one on the left in the first pic is the NNBS and one on right in first pic is a NBS? I tried searching for part numbers to check on each intake but my google skills are weak today and couldn't find anything. I am assuming and guessing the NNBS is left and NBS is right? Thanks guys

Jun 5, 2016 | 11:14 AM

SCott5

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The one on the left in first pic came on the gen IV with 243 heads if that helps

Jun 5, 2016 | 10:25 PM

alowerlevel

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Yes the one on the left with the fuel rails on it is a NNBS/TBSS style intake with a 87mm TB, the one on the right is the NBS style intake with a 78mm TB.