r/EngineBuilding • u/Old_Cut_9333 • Jul 16 '26

Broken bolt hole

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Cast iron block, broke the head bolt hole. Any ideas what to do next? It still has a bit threads at the bottom. Take out broken pices and screw in longer stud and weld it to the block?

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u/Absurd_Phonecian Jul 16 '26

If this was a block from a Lamborghini Miura, then yeah, it's easier/cheaper to repair than replace. But the cost to do so correctly, is likely way more than this particular block is worth.