Massive Speed Extra Length Crank Damper Balancer Pulley Bolt LS1Gen lll V8 ARP LS LSX

Genuine Massive Speed: Precision Crank Bolt Kit for GM LS / Gen III / IV 3 4 Series V8 Engines. EXTRA LENGTH!!! Still fits ALL LS Motors '97- today except LS7. Perfect for getting proper thread engagement on those DAMAGED crank snout threads!!! Did you (or someone else?) use a stock or other bolt to attempt to draw down the press fit crank pulley? Those who have tried this soon realize the first several threads will be pulled out of the crank... often rendering the crank useless. Massive has released this new XL-LS Extended length bolt that travels further into the threaded crank snout to engage more thread, giving your damaged crankshaft new life. The OEM bolt only engages the last 22mm of thread. Our new XL-LS bolt offers 32mm of engagement, a 50% increase. So even if the first few mm of your crank threads are damaged, merely clean out any material, and you will obtain proper or even increased thread bond! Others have used the superior torque transfer on their crank driven supercharg