550 wheels on a 456 bolts question | FerrariChat

550 wheels on a 456 bolts question

Discussion in '456/550/575' started by Salami, Nov 8, 2020.

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  1. Salami

    Salami Karting

    Oct 31, 2020
    219
    Oregon
    If I were to put 550 wheels on my 456 would I need different bolts? also, does anyone have any extra stock 550 wheels laying around?
     
  2. 21ATS

    21ATS Formula Junior

    Dec 10, 2016
    988
    Kent, UK
    Full Name:
    Alan
    Eurospares have sets of new old stock standard 550 wheels for £895 for a set of 4.

    https://www.eurospares.co.uk/parts/ferrari/550-maranello/brakes-wheels/wheels-19874

    Assuming you're in the States even with shipping and import duty you're unlikely to find a better deal over there.
     
    Salami likes this.
  3. Salami

    Salami Karting

    Oct 31, 2020
    219
    Oregon
    Wow that’s a great price thank you.
     
  4. white out

    white out Formula 3

    Mar 3, 2010
    1,229
    456 should have the same bolts used on the 550/575
     
    Salami likes this.
  5. Salami

    Salami Karting

    Oct 31, 2020
    219
    Oregon
    Good to know. I’d all but talked myself out of a wheel change but for 895£ and reuse stock bolts I can’t resist.
     
  6. Salami

    Salami Karting

    Oct 31, 2020
    219
    Oregon
    So I’ve read spacers on back 15mm “or more”. Does anyone have experience with this? Would 20 or 25mm be better? I’d rather use 20+ mm because then I can use bolt on adapters which are better than spacers with long bolts.
     
  7. white out

    white out Formula 3

    Mar 3, 2010
    1,229
    I prefer spacers with extended bolts as it has less weight than adapters (double the amount of hardware). If running Ti lug bolts with a spacer, it is ballpark same weight as OE steel lug bolts and no spacer.
     
  8. tazandjan

    tazandjan Three Time F1 World Champ
    Lifetime Rossa Owner

    Jul 19, 2008
    38,085
    Clarksville, Tennessee
    Full Name:
    Terry H Phillips
    I use 25 mm Hill Engineering Type 2 spacers on the rear of my 575M. Those have hardened inserts for the wheel bolts. Titanium bolts on the spacer and factory titanium bolts on the wheels. Has worked fine on three sets of wheels.
     
  9. Fennicus

    Fennicus Formula Junior

    Apr 10, 2015
    592
    Helsinki, Finland
    Full Name:
    Pekka T.
    Hi,

    I have used 550 wheels on our 1995 456 GT for almost six years, no spacers, no problems. Currently I have the original 17” inch wheels on the car as our streets are in pretty bad shape, but if we will be able to have the Nordic FOC meeting in Denmark next spring I will drive through Sweden with the 550 wheels.

    Cheers!
     
  10. Salami

    Salami Karting

    Oct 31, 2020
    219
    Oregon
    Got my 550 wheels on the car but the wheel bolts I was supplied with the spacers are a smaller head than the stock bolts and don’t seem like great quality so I’d like to find some +15mm bolts for the rear on the car. I’ve found a few sources but at 25$ each it’s a bit pricey. Anyone have suggestion on a source for them?
     
  11. tazandjan

    tazandjan Three Time F1 World Champ
    Lifetime Rossa Owner

    Jul 19, 2008
    38,085
    Clarksville, Tennessee
    Full Name:
    Terry H Phillips
  12. fatbillybob

    fatbillybob Two Time F1 World Champ
    Consultant Owner

    Aug 10, 2002
    26,431
    socal
    Thread engagement length is critical. At the minimum, thread engagement length must be equal to or greater than the diameter of the fastener. In other words, if the stud is 1/2-inch in diameter, the nut must engage onto the stud by at least 1/2-inch.
     
    Salami likes this.
  13. Salami

    Salami Karting

    Oct 31, 2020
    219
    Oregon
    According to my calculations, I need to go from 55mm to 70mm shank
     
  14. mathewr

    mathewr F1 Rookie
    Sponsor Rossa Subscribed

    Dec 7, 2011
    2,803
    Deep in the Heart of Texas
    Full Name:
    Ferrari Wheel Guru
    I have a set of OEM 456/550 lug bolts if needed.
     
  15. white out

    white out Formula 3

    Mar 3, 2010
    1,229
    It's a bit of a wait, but I can have some Ti bolts machined you (cost significantly more than steel/aluminum). Shoot me a message if you're interested.
     
  16. Ricambi America

    Ricambi America F1 World Champ
    Sponsor Owner


    In terms of factory-supplied original bolts, this is not correct.
    • The 456 uses a longer bolt, 55mm from the end of the bolt to the start of the conical head. The rear bolts on a 456 have a 33mm head and the fronts are 27mm.
    • The 550 uses a bolt which is 52mm from the end of the bolt to the start of the conical head. Both fronts and rears have a 27mm head.
     
    white out and Salami like this.

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