Resolved Head bolt threads

[spyderdrifter]

I am in need of a tap to clean the threads of a head bolt hole in the block. I've gone through other posts, I've seen that it's an 11x1.25 bolt and so on. I can't find a tap anywhere for this size. I've gone on Snap-On's website too, and they don't have that size. I'm thinking about calling machine shops to see if I can find one, but if I can't, where else can I find one?

This is for a 2g 7 bolt block.

 

[1990TSIAWDTALON]

http://www.ebay.com/itm/M11x1-25-GH...088450?hash=item5d5d688142:g:enEAAOSw37tWAGNV

It's just the tap but they can be purchased.

 

[spyderdrifter]

Thank you sir. Didn't even consider ebay. (Not an eBay fan). Guess that's what I'll get.

 

[2gmitsueclipse]

Thread cleaning chaser by ARP.
part #: 912-0004

 

[X2M7NOZ]

I believe mac tools has a whole re-threading kit. Has every re-thread ive needed so far.

 

[Chumpaumpalumpa]

Do not use a tap there. You are cutting metal away, weakening the area where the bolt/stud sits. That is not good. Use a thread chaser as mentioned before.

The ARP chaser:
http://www.jegs.com/i/ARP/070/912-0004/10002/-1?parentProductId=750048

or same product for cheaper:
http://www.amazon.com/ARP-912-0004-Thread-Cleaning-Chaser/dp/B00I5AO8FK/ref=sr_1_3?ie=UTF8&qid=1451983625&sr=8-3&keywords=thread cleaning chaser

or if you don't feel like shelling out for that then take an old head bolt or other m11x1.25x97mm bolt and cut 3 vertical slits in it with a die grinder and there you go you just saved $50!!

 

[spyderdrifter]

I ordered the ARP chaser last night and should have it in a week. Might have to try the idea with cutting the factory bolt. Really didn't think that would work. Figured the bolt material was softer than a chaser.

 

[Chumpaumpalumpa]

I ordered the ARP chaser last night and should have it in a week. Might have to try the idea with cutting the factory bolt. Really didn't think that would work. Figured the bolt material was softer than a chaser.

Which is fine, you're not cutting metal, you're just cleaning out the gunk in the hole. I've always used old bolts, even to remove red loctite. Works everytime. I think Dale on here even recommends that method.