Quote:
Originally Posted by Chad E532
We had to source a new block since our GM casting 400 block bores are non repairable and the block is already 0.060 over. Went to a Dart Little M block with billet caps.
The GM block we had was filled to the water pump. Changing over to the Little M block is there enough rigidity in the Dart castings that filler is not needed or is it still good practice to fill the block?
Thanks,
Chad
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Sonic test the block will tell you what needs to be done.