AcDelco/GM CCM rotors and 458 rotor hats | FerrariChat
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AcDelco/GM CCM rotors and 458 rotor hats

Discussion in 'Technical Q&A' started by clappi77, Apr 22, 2023.

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  1. clappi77

    clappi77 Rookie

    Apr 22, 2023
    2
    #1 clappi77, Apr 22, 2023
    Has anyone used the GM CCM rotors with their 458 rotor hats? My understanding is the rotor blanks themselves are the same item, only the GM part is far cheaper (~$1.2k per corner for GM). If this is considered okay, is there any documentation anywhere on the process of properly attaching the 458 rotor hat to the rotor blank?
     
  2. tbakowsky

    tbakowsky Two Time F1 World Champ
    Consultant Professional Ferrari Technician

    Sep 18, 2002
    20,042
    The Cold North
    Full Name:
    Tom
    #2 tbakowsky, Apr 22, 2023

    Well this is new...I'm all ears if this is an actual option. I have often wondered if this would work. Also..no reason why a hat couldn't be made to work either. Massive savings to be had here..
     
    020147 likes this.
  3. tazandjan

    tazandjan Three Time F1 World Champ
    Lifetime Rossa Owner

    Jul 19, 2008
    39,318
    Clarksville, Tennessee
    Full Name:
    Terry H Phillips
    #3 tazandjan, Apr 22, 2023
    Aftermarket sellers have been using the 394 mm Corvette transforms to replace the Brembo 398 mm CCMs for quite a while.
     
  4. clappi77

    clappi77 Rookie

    Apr 22, 2023
    2
    #4 clappi77, Apr 23, 2023
    Are there any known issues doing this? Is there any documentation on how to attach the 458 rotor hats to the GM rotor blanks (torque specs, tightening sequences, anything else)?
     
  5. tazandjan

    tazandjan Three Time F1 World Champ
    Lifetime Rossa Owner

    Jul 19, 2008
    39,318
    Clarksville, Tennessee
    Full Name:
    Terry H Phillips
    #5 tazandjan, Apr 23, 2023

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