347

Has anybody in sydney got a tap set that I could borrow to clean out the head bolt threads in my block?

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blue66coupe

Don't use a tap use a dedicated thread cleaner/chaser it wont damage the thread by cutting part of it away. Make your own by grinding two slots down the thread out of an old head bolt and if done right it will act as a cheap cleaner/chaser

347

Anyone got an old head bolt I can have?

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ebxr8240

You should be using new bolts ??? Unless you have studs, but then you won't need to clean them...Run any bolt down with same thread and size

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YES302

the head bolts are 7/16 unc i got a pack of 3 from supercheap for $2.50 and ground 3 groves in one and used that to chase the holes and it worked great...

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krankieone

It's a good idea and cheep too but I found running a bottom tap down the holes removed no noticeable fresh metal only a little rust and a some assorted sealer and the like. If I didn't have a tap I'd give your way a try :s4

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