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Spec Clutch SF46S Steel Flywheel SFI-Certified CNC Billet

(2005-2010 Ford Mustang)

Manufacturer

Picture for manufacturer Spec Clutch

Part Number

SF46S
13 reviews
Sale Price

$353.27

Estimated ship date Wednesday, November 25

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Product Details

The SPEC SF46S is a high carbon billet steel flywheel CNC-machined to an exceptional .001-inch tolerance — ten times more precise than the industry-standard .010 tolerance. This level of precision ensures perfect rotational balance and a perfectly flat friction surface for the clutch disc, contributing to both peak performance and safety in competitive driving environments. The SF46S carries full SFI certification, making it suitable for sanctioned racing applications.

Key Features:

  • CNC-machined to .001 tolerance — 10x tighter than industry standard for superior balance and surface flatness
  • SFI certified for use in sanctioned racing and high-performance environments
  • High carbon billet steel construction for consistent friction surface and medium-weight inertia characteristics
  • Rebuildable design with a replaceable steel friction plate formulated for optimum clutch bedding and clamping force
  • Zero dimensional runout eliminates engine-damaging vibrations and power-robbing harmonics
  • Optimized Moment of Inertia (MOI) engineered through SPEC's R&D process to maximize power delivery and acceleration

The flywheel plays a critical role in overall clutch system performance. It provides the friction surface for the clutch disc, contributes rotational inertia that affects power-to-acceleration ratio, and must maintain true balance at all RPM levels. SPEC engineers the SF46S with these three functions in mind, carefully optimizing flywheel weight and dimensions to suit a wide range of performance and racing applications.

The steel construction of the SF46S offers a medium-weight inertia profile, making it well-suited for applications where drivability and consistent power transfer are priorities. Paired with any SPEC clutch kit, this flywheel delivers a complete, precision-matched drivetrain foundation.

Products specifications

Fits

2005-2010 Ford Mustang

Would buy again

Great price and delivery time!

The best price for what I was looking for.

Easy to navigate.

Nice and easy

Good so far.

Part was easy to find and check out was super fast.

Very Good Supplier

The Wolo-Aurora Amber Lens Magnet light bar (WLM-3550MA) I received does not look like the one pictured. The one in the picture is longer and has lower profile with rounded ends. The one I received it short and tall with square ends. It will still work but it is NOT the same one pictured.

Quick web site. I hope you can ship on Tues so I can get it on Thurs. Thanks!!!!

Autoplicity had the best price on the item I wanted. Order process was a little odd. I didn't get any confirmation of my order being placed. So 2 days later I sent an email asking if they had received it. They answered me very quickly, sent me an order confirmation with tracking number, and it turns out my item had already shipped so I had it the next day. So ordered 5/1 and had it in my hand 5/4.

The best price found on the net for an Airtex fuel pump. Fast shipping via UPS. Received 08/09/2012<br><br>Autoplicity is now in my favorites. Order Number: <br>Ray J.

Same day shipping. 20 Dollars cheaper than everywhere else!

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