Small block rockers-what are these

Bighouse

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Hey everyone- not much time in the last couple days so I popped a valve cover off out of curiosity. They don’t look like 273 parts- I see dual valve springs too. Engine is a 340. All I know about it is it runs nice and sounds healthy
What do you guys see?
8B631876-4499-4966-B940-E52D0309ABF7.jpeg
 

toolmanmike

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Yep, probably Crane or Isky. They aren't 273 adjustables because of the adjuster/lock nuts.
 

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