The new rope seals, when cut clean, and installed right work well.
On 455 blocks made in 75 and 76 you can find huge discrepancies in the rough cast area where the original rope seal sits. This can make indexing a new style seal impossible. Most of these cast SEAL areas are NOT concentric with the crank. My machine shop owner and I did a AERA bulletin on this. 75 and 76 blocks ONLY.
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"The Future Belongs to those who are STILL Willing to get their Hands Dirty" .. my Grandfather
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