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ATI Damper - 7.81" - Aluminum - 6/10 Groove - 10% OD Size (2007 - 2014 Ford Shelby GT500 5.4 / 5.8) ATI918049

ATI Damper - 7.81" - Aluminum - 6/10 Groove - 10% OD Size (2007 - 2014 Ford Shelby GT500 5.4 / 5.8) ATI918049

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Item#:
APPATI918049
$611.45
Price: $578.28
(You save $33.17 )
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UPC:
800157032301
Availability:
Regularly stocked product
LTL:
N
MPN:
ATI918049
Product ID:
361440
Proposition 65:
N
Category:
Engine Components>Crankshaft Dampers
Core:
N
Clearance Item:
N

ATI Damper – 7.81in – Aluminum – 6/10 Groove – 10% Overdrive (2007–2014 Ford Shelby GT500 5.4L / 5.8L) – ATI918049

10% Overdrive Aluminum Super Damper for 2007–2014 Shelby GT500 5.4L & 5.8L

The ATI 7.81-inch Aluminum Super Damper (part ATI918049) is designed for 2007–2014 Ford Shelby GT500 models running the 5.4L or 5.8L supercharged V8. Built for high-boost performance and long-term durability, this damper features a 10% overdrive ratio and a dual 6/10-groove pulley design to improve blower speed and belt traction. Constructed from lightweight aluminum and SFI 18.1 certified, it delivers superior harmonic control, increased efficiency, and rock-solid reliability at extreme RPMs.

Performance Highlights

  • 10% overdrive pulley ratio increases supercharger speed for more boost and power
  • 7.81-inch outer diameter enhances belt grip and durability
  • Dual 6/10-groove pulley system supports both accessory and supercharger drives
  • Lightweight aluminum construction reduces rotational mass for quicker engine response
  • 3-ring internal design effectively absorbs crankshaft harmonics
  • SFI 18.1 certified for NHRA and IHRA-approved competition use
  • Fully rebuildable for lifetime use and consistent performance

Quick Specs

  • Outer Diameter: 7.81 inches
  • Material: Aluminum
  • Pulley Type: Dual 6/10 Groove
  • Drive Ratio: 10% Overdrive
  • Certification: SFI 18.1
  • Rings: 3
  • Applications: 2007–2014 Ford Shelby GT500 5.4L / 5.8L
  • Part Number: ATI918049

Why Choose the ATI 7.81in 10% Overdrive Super Damper?

The ATI918049 delivers more boost, more power, and more control for your Shelby GT500. By increasing blower speed by 10%, it enhances performance while eliminating harmful vibrations that can damage bearings and crankshafts. The dual 6/10-groove pulley ensures maximum belt contact, preventing slip under high load. Whether you’re running stock Eaton or upgraded Whipple/Kenne Bell systems, this damper keeps your engine balanced and your boost consistent under extreme conditions.

Frequently Asked Questions

How much boost does a 10% overdrive pulley add?

Typically, a 10% overdrive setup adds about 2–3 psi of boost depending on supercharger type and supporting modifications.

Will this damper fit both 5.4L and 5.8L GT500 engines?

Yes. It’s designed to fit all 2007–2014 Shelby GT500 models with 5.4L or 5.8L engines.

Is this damper suitable for racing applications?

Absolutely. The SFI 18.1 certification ensures safety and performance compliance for high-RPM and racing environments.

Do I need a longer belt for installation?

Yes. Because of the 10% larger pulley diameter, a slightly longer belt may be required to maintain proper tension.

Vehicle Fitment

  • 2007 Ford Shelby GT500 5.4L Supercharged
  • 2008 Ford Shelby GT500 5.4L Supercharged
  • 2009 Ford Shelby GT500 5.4L Supercharged
  • 2010 Ford Shelby GT500 5.4L Supercharged
  • 2011 Ford Shelby GT500 5.4L Supercharged
  • 2012 Ford Shelby GT500 5.4L Supercharged
  • 2013 Ford Shelby GT500 5.8L Supercharged
  • 2014 Ford Shelby GT500 5.8L Supercharged

Contact Beefcake Racing

Beefcake Racing is your trusted source for ATI Super Dampers and Ford Performance upgrades. For expert assistance or to order, email sales@beefcakeracing.com or call 1-855-827-7223. Our experienced team can help you select the ideal damper for your GT500 build and boost goals.

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