Dart Big M or Brodix Block?
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Joined: Dec 2020
Posts: 72
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Dart Big M or Brodix Block?
hi everyone, i wanted some information about building a big block drag racing motor. I was wondering which was the large block with the greatest thickness of the cylinder walls (once bored to the maximum tolerance provided by the house).
I have considered Big M Dart blocks and Brodix blocks, water cooled, not solid block. In your opinion which one would be better? I would like to make a 632 twin turbo block that holds 35 psi of pressure, so I would need a block with a large cylinder wall thickness.
Thanks for the kindness guys, I really appreciate it
I have considered Big M Dart blocks and Brodix blocks, water cooled, not solid block. In your opinion which one would be better? I would like to make a 632 twin turbo block that holds 35 psi of pressure, so I would need a block with a large cylinder wall thickness.
Thanks for the kindness guys, I really appreciate it
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Joined: Feb 2024
Posts: 40
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From: Rochester Hills Michigan
The Dart Big M claims a minimum of 0.300" minimum wall thickness at 4.625" bore. I have not seen Brodix claims on wall thickness. I also think you are barking up the wrong tree with a water filled block at the HP level that a 632 will make with 35PSI. At this level of power you should be talking to a builder that can provide the complete motor that will have all of the appropriate parts to make it live. I am building a 565 using a Big M Block with 4.600" bore. With inter-cooling at 15PSI the estimated HP is 1652.
