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Why Was the Cummins 555 Not Popular?

95049 Views 15 Replies 14 Participants Last post by  Flippin' Crazee

Why was the Cummins V-555 line not so popular?

My theories are that these engines, which include the VTF-555, were an outgrowth of the V-470 (VINE) and the V-504 diesel engines, all of which are undersquare (with a 4-5/8" bore, the V-470 having a 3-1/2" stroke, the V-504 a 3-3/4" stroke and the V-555 a 4-1/8" stroke).

Here is a video of a VTF-555 in action as a retrofit engine in a 1952 American LaFrance fire engine:

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I worked a linkbelt crane back in the 80's with a 555 and 13 speed. It grossed 58,000 lbs. down the road. Top end was 65 mph. If you hit a hill you tried to grab at least 2 gears to maintain some speed. It did do good for the stationary work it usually did on the job sights. It spent a lot of time maxed out on rpm's pouring concrete or slinging iron. I think we overhualed it once.
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