Question about heads and valves.

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Say someone has two sets of heads. Both are factory 4V heads. One set is a 1970 closed chamber with the factory explosive valves that need to be replaced. The other set is a rebuilt set of open chamber cobra jet spec heads that uses new aftermarket valves, but nothing real special only they don't explode.
Now here is the question. Can you take the new valves off the CJ spec heads and put them in the closed chamber heads and just put it on the engine with no other modifications?? Will you have to grind push rods or something? Other than a valve seat lap job, would you have to do anything else to get it to run??????

8/30/077:05 AM

Original Post

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