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456 replacement battery

Discussion in '456/550/575' started by Rojo, Nov 3, 2009.

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  1. Rojo

    Rojo Formula Junior

    Jul 17, 2009
    315
    Stillwater
    Full Name:
    Bob
    #1 Rojo, Nov 3, 2009
    The battery in my 456 is no longer holding a charge and I will be buying a new one soon. I have read many threads regarding this issue but I don't think there is one directed towards the 456 (not that it likely matters). Any recommendations would be great.
     
  2. tazandjan

    tazandjan Three Time F1 World Champ
    Lifetime Rossa Owner

    Jul 19, 2008
    39,007
    Clarksville, Tennessee
    Full Name:
    Terry H Phillips
    #2 tazandjan, Nov 3, 2009
    Last edited by a moderator: Sep 7, 2017
    Bob- FIAMM recommends the same battery for the 456/M as for the 550/575M, so all the recommendations for those two will work. Those are the following Interstate batteries:

    MTP-91 Interstate fits perfectly with slight mod of the insulation ala box cutter. A mere trim.

    Product ID: MTP-91(Automotive Truck)
    Amps: 875
    Cranking Amps: 875
    Cold Cranking Amps: 700
    Voltage: 12
    Termination: A
    Pro-rata Warranty: 85
    Weight: 36.9
    Width: 6.88
    Length: 11.38
    Height: 6.88

    MTP-6H is an alternative.

    Product ID: MTP-H6(Automotive Truck)
    Amps: 800
    Cranking Amps: 800
    Cold Cranking Amps: 640
    Voltage: 12
    Termination: A
    Pro-rata Warranty: 85
    Weight: 40.8
    Width: 6.89
    Length: 10.94
    Height: 7.48



    Delco 48-6YR or 48/91-6YR is a substitute for the MTP-91

    Taz
    Terry Phillips
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  3. Rojo

    Rojo Formula Junior

    Jul 17, 2009
    315
    Stillwater
    Full Name:
    Bob
    #3 Rojo, Nov 3, 2009
    Perfect!

    Thanks Taz
     
  4. ferraridriver

    ferraridriver F1 Rookie

    Aug 8, 2002
    4,150
    Bay Area Calif.
    Full Name:
    Dave
    #4 ferraridriver, Nov 3, 2009
  5. tazandjan

    tazandjan Three Time F1 World Champ
    Lifetime Rossa Owner

    Jul 19, 2008
    39,007
    Clarksville, Tennessee
    Full Name:
    Terry H Phillips
    #5 tazandjan, Nov 3, 2009
    Dave- I probably need to reorder the two. I have a Word document with all the dimensions you posted earlier. Plus all the FIAMM dimensions on the VR760, the original battery, replaced by the L3 80+. Need to put the dimensions in mm, too. The MTP-91 has more cranking power, costs $40 less, and has the same warranty, but sounds like it is harder to fit.

    Incidentally, the fact the Interstates are more powerful than the FIAMMs is an old wive's tale, one I helped propagate. Both the VR 760 and L3 80+ have more cold cranking power than either Interstate battery. Probably originally caused by someone comparing apples and oranges of cranking power and cold cranking power.

    Taz
    Terry Phillips
     
  6. Rojo

    Rojo Formula Junior

    Jul 17, 2009
    315
    Stillwater
    Full Name:
    Bob
    #6 Rojo, Nov 10, 2009
    Terry,


    I replaced my battery yesterday with the MTP-91 without any difficulties (10 minutes max).

    My missing cylinder issue was solved and the beautiful acceleration and sound have returned! There is nothing like driving down the country roads on a beautiful fall day in Minnesota.

    Next is the power steering.
     
  7. tazandjan

    tazandjan Three Time F1 World Champ
    Lifetime Rossa Owner

    Jul 19, 2008
    39,007
    Clarksville, Tennessee
    Full Name:
    Terry H Phillips
    #7 tazandjan, Nov 10, 2009
    Bob- I love a happy ending. Maybe time for a power steering rebuild thread, but I think there already is one.

    These are the two shops that come highly recommended, possibly the NC shop a bit more.

    Atlantic Enterprises
    9326 Highway 90
    Longs, NC 29568
    1-800-654-7565


    Advantage West,
    68805 Perez Road, # F44
    Cathedral City, CA 92234-7227
    760 202 9990


    Taz
    Terry Phillips
     
  8. tazandjan

    tazandjan Three Time F1 World Champ
    Lifetime Rossa Owner

    Jul 19, 2008
    39,007
    Clarksville, Tennessee
    Full Name:
    Terry H Phillips
    #8 tazandjan, Nov 11, 2009
    Dave- Just checked the battery in my 575M and it is an MTP-91 as well and that is what my technicians carry in their shop. So I am reordering the batteries again with the MTP-91 on top. Not only is it stronger, but it also costs $40 less, and has the same 85 month warranty as the MTP-H6.

    Taz
    Terry Phillips
     

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