Tapping bolt threads

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May 19, 2003 | 10:53 AM

DjArcadian

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Joined: Feb 2002

Posts: 345

From: CA

Tapping bolt threads

I have to tap out the threads for the header bolts on my heads. When I go to the auto store do I just ask for a 3/8 16 thread tap?

May 19, 2003 | 01:00 PM

4th-gen-formula

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Joined: Jan 2003

Posts: 78

From: Sparta Ohio

are they bigger than stock bolts????

why do you need to tap???

If you are going bigger, you need a drill bit also. But if you're not then why do you need to tap?

May 19, 2003 | 02:27 PM

DjArcadian

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Joined: Feb 2002

Posts: 345

From: CA

One of the threads is messed up and I need to clean it out. I'm NOT looking to enlarge or drill it deeper.

May 19, 2003 | 02:57 PM

shoebox

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Joined: Dec 1969

Posts: 27,725

From: Little Rock, AR

3/8-16 is correct.

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