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just picked up this block looked inside and found some grind marks inside that look like they were done intentionally, possibly with a dremel. Also found a scratch, is this block screwed?
Last edited by avalenz303; Sep 24, 2018 at 01:20 AM.
There is a parting line in the bay windows that someone ground away. I do this as well, but much nicer. Your fine.
I have to admit that I wasn’t aware the Ls1 blocks had bay windows. I learned something new today, and it’s still early. Yay me.
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Found some crazy grind marks in used ls1 block 
