Rocker Arm Bolt Hole Thread Stripped - Need Advice - LS1TECH

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Rocker Arm Bolt Hole Thread Stripped - Need Advice

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Old 11-13-2007, 11:08 PM   #1
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Default Rocker Arm Bolt Hole Thread Stripped - Need Advice

The thread on one of my rocker arm bolt holes is stripped out. I tried a helle coil repair kit which included a bit, tap, and correctly sized metric 8mm helle insert. I'm running a TT with 10 psi and 9:1 compression and it keeps backing out and breaking my rocker arm guide plate. I even tried drilling and installing a larger 3/8" helle coil and that pulled out to.

What options do I have at this point to repair the existing head? Should I get it welded up and redrilled and tapped to factor spec? Can I use JB Weld and try to weld in another helle coil?

Your advice is greatly appreciated as I'm running out of patience. Please email me at or call my cell at (972) 898-0101.


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