Sorry for the delay. A B&M 174 is just like a weiand 177, which is still produced. Actually I think it's identical. Back in when Holley had both the B&M and Weiand the Weiand has a spring tensioner up by the driven pulley. Now the Weiand has the same tensioner that my B&M 174 has. This will get you salivating, I have everything, even down to the original instructions. I got it out of storage and cleaned it up a bit and to not break forum classified rules i'll post all the picks in the classified area.
Check it out, I have everything still, a used gasket and a new pair of gaskets. There is some oxidation on the Aluminum, but I even the original stickers. Where is that picture of your truck from, Silver Lake Sand dunes? No problem crushing the tallest dune once you have this baby installed.
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