Combo of the new GRIP Boundary Crank Sprocket with knurling and Martenwear coating with the Apex Torque crank stud to achieve another 7000 pounds of force over the OEM setup!

Our harmonic balancer stud kits feature one of the world’s strongest alloys, AT280, providing unparalleled safety and fastener performance. Through a finite element analysis optimization, and some of the tightest fastener tolerances in the industry, we’ve come up with the last fastener you’ll ever need for your high-performance engine.

These studs feature:

• Massive oversized 1-1/4 nut with full 1-1/2 inch flange to distribute the stud load
• Rolled Threads
• FEA designed necking and fastener stacks
• 280,000 PSI Ultimate Strength
• 250,000 PSI Yield Strength
• Dual External Coating Technology combines 500+ hours of salt spray endurance in the threads with 3000+ hours on the rod.

The Coyote crankshaft timing sprocket with grip surface improves the durability of the crankshaft snout and keyway by limiting the movement of the harmonic balancer.

Billet Crank Sprockets from Boundary follow the same heritage as our oil pump gears, manufactured 100% in-house with US-sourced materials. These sprockets start with Chromoly steel that is ten times stronger than the OEM powdered metal, hot quenched with a low temper for the highest strength and resistance to wear.

• All sprockets heat treated to maximum hardness while maintaining toughness
• Precision CNC machined and broached for snug accurate fit
• Dimensions are checked after machining and after heat treatment for a guaranteed fit.
• 80% more cross-section versus OEM at the keyway
• Weighs 30% more than OEM at 170 grams vs 130 grams giving the highest-strength sprocket on the market.
• High finish reduces friction and chain vibration
• New tooth geometry strengthens teeth and keyway

Part Number: CM-SP-11-GRIP FITS:

• ALL FORD COYOTE 2011-2014

Part Number: CM-SP-15-GRIP FITS:

• ALL FORD COYOTE 2015-UP

The grip surface is not available in LARGE RADIUS (LR)