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Chad E532 · 12-09-2022, 01:14 PM

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

12-09-2022, 01:14 PM	#1
Chad E532 Member Join Date: Jul 2008 Location: Lindstrom MN Posts: 156 Likes: 7 Liked 54 Times in 7 Posts	Block Filler Necessary? 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