One thing to keep in mind the 5ds, 1lw, 1mm, and 2ws are the same block more nickel in the casting makes them stronger. Your mbn, 6nz, and bxs, mxs, nxs are the same block ( sculptured) less casting in them. There has been a history of the sculptured blocks cracking with age or high hp.
Help decide which Cat motor..
Discussion in 'Trucks [ Eighteen Wheelers ]' started by WREN, Aug 4, 2019.
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