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Stripped Head Bolt

Discussion in 'Engine Building' started by Sed8ed, May 9, 2003.

  1. Sed8ed

    Sed8ed New Member

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    Well I picked up a new (for me) B18b block for parts, for very cheap because the head bolts are stripped. The block has shotpeened rods, brand new pr3 pistons, micropolished crank and all new bearings (plus all the basics from an engine build). I was going to swap all the internals onto my existing b18a block but after looking at the damage, could I repair the threads? I was thinking of helicoiling the block but im not sure if I can use helicoils on aluminum (I have used them on cast iron blocks before). Suggestions?
     
  2. pills_PMD

    pills_PMD Super Moderator

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    the head bolts are stripped?? or the threads they go into are stripped??

    if the head bolts are fucked, get arp head studs

    retap them?? or are they incredibly fucked up??
     
  3. Sed8ed

    Sed8ed New Member

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    It's the threads that they go into, inside the block... I already have arp's on my existing block. The previous owner reused the original head bolts multiple times and they bottomed out destroying the threads. There is almost no threads left in 2 of the holes but I haven't tested all of them yet.
     
  4. Sed8ed

    Sed8ed New Member

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    Well, I checked with a few machine shops today... the cheapest I could find for repairing the block was around $300... I guess i'll just be swapping internals.
     
  5. hcivic.com

    hcivic.com Senior Member

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    retap the bolts up one size
     
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