As far as I'm aware, all small blocks LA (273/318/340/360) or Magnum
(5.2/5.9) use the same timing gear and chain setup.
UNLESS, you have a 3 bolt cam, then you need a different top gear.
The JP Performance chain I installed was listed the same way.
You can always call the Magnum Tech line to verify, 800-362-3569
TonyC
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