Quote:
Originally Posted by PoorMans180SX
^This. Also you might as well retap the block for 11mm head studs and use Evo headstuds.
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I'd just have it drilled and tapped for 12mm studs and run rb26 hardware. People running re-tapped 11mm studs have had issues with thread engagement. The correct way would be a timesert or something along those lines.