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Massive High Strength LS7 Reusable Crank Pulley Damper Bolt Compatible with GM LS V8 LSX LS 7 9 LSA LS3 GS Dry Sump Length ARP Style

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$21.77

$ 9 .99 $9.99

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About this item

  • High Strength - 197,000 PSI Tensile Strength! Dont risk your high performance build!
  • 100% Made in the USA - Quality!
  • Fully reusable, unlike stock one time use bolt
  • Separate Bolt / Washer plate for high accuracy torque transfer


LS7 SERIES CRANK BOLT - Truly superior strength is needed on this most critical of load bearing fasteners. The crankshaft sees immense kinetic energy! Both twisting and lateral loads are exerted on this one area, and to an even greater degree on belt driven supercharged cars. OEM fasteners are one-time-use - they stretch and must be replaced, so upgrading with the Massive Speed Precision unit is a "no-brainer". Grade 12.9 197,000 PSI tensile strength 12 point flanged bolt finished in black oxide is far stronger and places superior clamp only load to balancer through the use of a seperate washer plate (a full 1/4" thick! Fully reusable. MADE IN THE USA!!! Designed for OEM Dry sumped LS engines, such as the LS7, LS9 the Gran Sport Corvette etc