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  1. MMR Billet Rear Main Seal Housing Cover / Block Support (Ford 4.6 & 5.4L V8) - 400031
    $149.99

    This 1/2 inch billet aluminum CNC machined plate replaces the factory cast alloy rear main seal housing cover. Its thick CNC construction helps support the rear of the block and provides a stable housing for the rear main seal to 100% Eliminate leaks and increase block strength & stability. The MMR cover is O ringed to eliminate messy silicone and downtime from scraping old silicone every time the engine is torn down. Includes hardware and MMR High performance 1 piece rear main seal. Anodized to protect from corrosion in harsh bellhousing environment. Fits: 1996-2010 Mustang GT 1998-2004 Mustang Cobra 2007-2014 Mustang GT500 1996-2010 F150 / F250 with 4.6 or 5.4 1993+ Lincoln 4.6 & 5.4 For use with all stock and aftermarket crankshafts. A MUST FOR ANY HIGH HP BLOCK BUILD! Features: Fits ALL 4.6 / 5.4 / 6.8 Cast iron and Aluminum Blocks Anodized to prevent corrosion in harsh bellhousing environment Guaranteed leak proof design No Messy silicone required like factory Manufactured using Aerospace 6061 T6 Billet Alloy New MMR Mounting hardware Viton O-ring gasket and MMR performance 1 piece rear main seal. Plug and play install! Designed for street use to full race use As used in the 4000hp MMR World Record Holding MMR Promods! Proudly Manufactured in the USA by MMR Learn More
  2. MMR 562888 Billet Chain Guides 2007-2014 Shelby GT500
    $369.99

    MMR Billet Chain Guides 2007-2014 Shelby GT500
    Fits all 5.4 / 5.8 blocks (iron and alloy)
    Made in USA by MMR
    Includes 4 guides as shown

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  3. MMR 400046 Billet Trigger Reluctor Wheel 4.6L / 5.4L / GT / Cobra / 2007-2014 Shelby GT500
    $119.99

    MMR 400046 Billet Trigger Reluctor Wheel 4.6L / 5.4L / GT / Cobra / 2007-2014 Shelby GT500
    Tested by Team MMR up to 10,000RPM!!
    USA Machined From Billet Steel
    Increases possible RPM potential with a cleaner trigger signal
    Higher strength reducing deformity at high rpm

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  4. MMR 444032 4V / DOHC Billet Secondary Tensioners & XHD chain kit
    $599.99

    MMR Billet Passenger side DOHC Secondary tensioner and Heavy Duty Secondary chain kit.
    *Plug and Play Install
    *Fully rebuildable with replaceable wear strips

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  5. MMR 540095 2007-2014 Shelby GT500 Cast Iron Primary Timing Chain Tensioners
    $59.99

    New Genuine Ford Cast iron tensioners with Rachet. 7R3V-6L266-AA. These are OEM /factory equipment on all 2007-2014 GT500 5.4/5.8 applications

    Include 2 Tensioners
    Also Fits ALL 4.6 SOHC and DOHC Engines as a suitable upgrade Learn More

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