Hi Rodney
I'm emphatically not a cam guru. But over the decades I have kept notes regarding 351C cams offered by various vendors, TRW being one of them.
Crane used to sell the Cobra Jet cam under part number C580. That is the only note I have regarding a cam with the part number 580.
Here's the specs I have for TRW cams; they are all hydraulic flat tappet type cams. These are all "generic" or perhaps "popular" cam grinds that have been duplicated by several companies. Its possible TRW offered other cams, but these are the only part numbers I kept for my records.
TRW #TP194 (this is Tom K's cam)
270°/280° advertised duration
204°/214° duration @ 0.050”
51° overlap
0.484"/0.510" valve lift
112° lobe separation angle
TRW #TP244 (same as the Cobra Jet cam)
270°/290° advertised duration
206°/221° duration @ 0.050”
50° overlap
0.481"/0.490" valve lift
115° lobe separation angle
TRW #TP195 (same as the SVO A341 cam)
280°/290° advertised duration
214°/224° duration @ 0.050”
61° overlap
0.510"/0.536" valve lift
112° lobe separation angle
TRW #TP206
290°/300° advertised duration
224°/234° duration @ 0.050”
71° overlap
0.536"/0.563" valve lift
112° lobe separation angle