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Added insurance when building a big bore Twin Cam engine. You have seen the center right case bolt thread that has become compromised from the larger cylinder spigot bore diameter? Now you can get back all the necessary case bolt retention by installing one of JIMS Through Bolts Kits. This tool is needed to spot face the right case so the bolt head will seat flat on the case surface. Use on all Twin Cam 99-17.
Note
Fits Harley-Davidson Twin Cam 99-17
