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Dont let this part destroy your GT500 engine!! The problem and the fix >>>>

Discussion in 'Engine/Drivetrain' started by Modular Racing, Jul 21, 2014.

  1. Modular Racing

    Modular Racing Authorized Vendor Authorized Vendor

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    MMR has had a overwhelming # of calls from engine builders and customers across the country with broken/failed lower crankshaft sprockets. It seems the majority have been those with upgraded camshafts but many have also been stock applications. We even received a call from a MMR dealers who had even broke 2 on the same engine. When this part breaks catastrophic failure is certain (bent valves, damaged pistons,cylinder heads etc). MMR went to work quickly on a solution and are now selling the MMR Billet Steel gear. This gear replaces the factory powdered metal gear directly with no other changes, the MMR gears are manufactured from billet 9310 heat treated material and precision made in the US by MMR. If you are building aftermarket engine, rebuilding a engine you need one of these!!! Retail on the Billet steel gears is $299. Order here: http://www.modularmotorsportsracing...in_page=product_info&cPath=21&products_id=414
    Dont let this happen to you:

    [​IMG]

    The new MMR Billet gear

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    Last edited: May 11, 2017
  2. 5.8MysticCobra

    5.8MysticCobra Banned

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    I second and recommend changing the crank sprocket as well , and while your there double key it and maybe MMR sells a double sprocket as well
     
  3. Modular Racing

    Modular Racing Authorized Vendor Authorized Vendor

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    There is no need to double key the sprocket since they are not known for spinning on the crank, just the balancer and crank snout (in front of the gear) need to be double keyed.
     
  4. WSPI

    WSPI New Member Established Member

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    ;)
     
    Last edited: Dec 26, 2014
  5. 5.8MysticCobra

    5.8MysticCobra Banned

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    My 5.8 John built for me has the sprocket double keyed as well as the crank timing wheel. Doesn't hurt to double key it ,help distribute the load it has from all the valve train components, either way your product is better than the factory sprocket
     
  6. Dan Schoneck

    Dan Schoneck Active Member Established Member

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    when your hi hp motor blows up because of it all the sudden its a pretty cheap piece! and really how much cheaper can it be made?? Prob not alot.
     
  7. 5.8MysticCobra

    5.8MysticCobra Banned

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    HAHA what are you doing in here man jk
     
  8. WSPI

    WSPI New Member Established Member

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    ;)
     
    Last edited: May 7, 2015
  9. Modular Racing

    Modular Racing Authorized Vendor Authorized Vendor

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    What timing kit are you referring to? Our company is known for the exact opposite as the picture you portray, customers purchase Genuine Ford parts from us because we are CHEAPER than the dealer not more expensive as you have hinted. In regards to the kit can you tell us which exact items, the reason we ask is 1. We want to make sure we continue to have the lowest prices and 2. Ford Dealers do not offer timing kits, they offer each part individually, and if your reference is a GT500 complete timing parts list the price is FAR more than the $250 you listed. Curios.......
     
  10. Modular Racing

    Modular Racing Authorized Vendor Authorized Vendor

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    ttt
     
  11. Modular Racing

    Modular Racing Authorized Vendor Authorized Vendor

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    bump
     
  12. Super hiss

    Super hiss Member Established Member

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    im asking a knowledgable engine builder if this is true. luckaly i havent rebuild my engine yet. and if it is true ill be 1 of the 10 buyers to make the price cheaper
     
  13. KingCobra07

    KingCobra07 Traction is a virtue Established Member

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    Well this would have been great to know about while my motor was still being assembled 2 months ago...lol
     
  14. Modular Racing

    Modular Racing Authorized Vendor Authorized Vendor

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  15. Modular Racing

    Modular Racing Authorized Vendor Authorized Vendor

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  16. Modular Racing

    Modular Racing Authorized Vendor Authorized Vendor

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  17. Modular Racing

    Modular Racing Authorized Vendor Authorized Vendor

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  18. Modular Racing

    Modular Racing Authorized Vendor Authorized Vendor

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    bump
     
  19. Modular Racing

    Modular Racing Authorized Vendor Authorized Vendor

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  20. Modular Racing

    Modular Racing Authorized Vendor Authorized Vendor

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    ttt
     

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