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Rocker arm help

Started by 6s855, November 12, 2026, 10:57:01 AM

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6s855

I'm replacing the Poly lock rocker arm nuts on my 289 hipo with a set of old-school rocker arm nuts because they're too tall for my valve covers and I hate them. I might only have 150 miles on them total.

When I removed them I saw that the diameter of the tapered rocker arm fulcrum "washer" under the poly locks was bigger than the diameter of the old-school fulcrums I was going to use.

So the question is can I reuse the bigger poly lock fulcrums under the old-school nuts or must I replace them with the smaller old-school fulcrums because the bigger ones are unique to the poly locks.

Any advice from the experienced engine builders here? Please help.
PS. I know about the old-school nuts losing tension. These are brand new.

pbf777

     Your choice of wording has me somewhat unsure of what it is your dealing with, so if you wish, you may call me (407-843-3673) and I will try to help you.   :)

     Scott.

6s855

Scott, you've answered my question. Much appreciated.

Jay