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What size tap do I need for crank snout bolt hole on a 400sb?

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Old Aug 8, 2001 | 05:29 PM
  #1  
MikeH's Avatar
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From: Fla
Car: 90 IROC
Engine: 406
Transmission: GMPP 93/4L60
Axle/Gears: 9 bolt 3.27
What size tap do I need for crank snout bolt hole on a 400sb?

I was pulling my harmonic balancer off to install the new cam. I couldnt find the piece for the tip of my puller. I got it off but I screwed up the first two threads on the crank snout. Now the bolt wont go in that holds the balancer on.

It doesnt look to bad so I think I could use a tap to clean it up.



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Black 90 IROC, L98, A4, 323 gear. SuperRamed 406 in the works!
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Old Aug 8, 2001 | 05:39 PM
  #2  
RB83L69's Avatar
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From: Loveland, OH, US
Car: 4
Engine: 6
Transmission: 5
7/16"-20 (fine)

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"So many Mustangs, so little time..."
ICON Motorsports
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Old Aug 8, 2001 | 05:50 PM
  #3  
MikeH's Avatar
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Joined: Jul 1999
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From: Fla
Car: 90 IROC
Engine: 406
Transmission: GMPP 93/4L60
Axle/Gears: 9 bolt 3.27
Thanks alot RB! I thought you would know. IM off to pepboys......

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Black 90 IROC, L98, A4, 323 gear. SuperRamed 406 in the works!
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Old Aug 8, 2001 | 06:29 PM
  #4  
MikeH's Avatar
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Joined: Jul 1999
Posts: 1,780
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From: Fla
Car: 90 IROC
Engine: 406
Transmission: GMPP 93/4L60
Axle/Gears: 9 bolt 3.27
The tap worked I can get the bolt in. I need to run a tap thru the head bolt holes in the block. Do you happen to know what that one is?



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Black 90 IROC, L98, A4, 323 gear. SuperRamed 406 in the works!
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Old Aug 8, 2001 | 06:37 PM
  #5  
RB83L69's Avatar
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Joined: Jul 1999
Posts: 18,457
Likes: 16
From: Loveland, OH, US
Car: 4
Engine: 6
Transmission: 5
But of course... 7/16"-14 (std thread)

------------------
"So many Mustangs, so little time..."
ICON Motorsports
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Old Aug 8, 2001 | 07:49 PM
  #6  
MikeH's Avatar
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iTrader: (10)
 
Joined: Jul 1999
Posts: 1,780
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From: Fla
Car: 90 IROC
Engine: 406
Transmission: GMPP 93/4L60
Axle/Gears: 9 bolt 3.27
Thanks! If I can help you with anything please let me know.

You have been alot of help to me with my 400 buildup.

------------------
Black 90 IROC, L98, A4, 323 gear. SuperRamed 406 in the works!
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