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11-18-2014, 03:18 PM
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#1 |
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Registered User
Join Date: Feb 2014
Location: Brooklyn New York
Posts: 324
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What is the size of the bolt for the harmonic balancer?
Guys, I am in the process of changing out the timing gears on my '66 C10 250. The bolt is missing that fastens the harmonic balancer to the crank shaft. Anyone know the specs of this bolt? Thank you.
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11-18-2014, 04:25 PM
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#2 |
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Never Ending Projects
Join Date: Jul 2006
Location: San Diego, CA
Posts: 3,836
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Re: What is the size of the bolt for the harmonic balancer?
This is an inline 6 (250), correct? They are not drilled and tapped for a bolt. The balancer is a press fit and nothing holds it on. You can drill and tap the crank. I did on my 250. Used 3 different drill sized to get to the needed tap size. You can use the same bolt as a SBC (IIRC 7/16" fine thread).
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. 1965 C10 Panel,  Tiki Express http://www.67-72chevytrucks.com/vboa...d.php?t=506580 SOLD1968 Chevy C10, Long, Fleetside, Hot Rod Hauler http://67-72chevytrucks.com/vboard/s...d.php?t=313233 SOLD 1965 Chevy C10, Long, Fleetside, Hot Rod C10 http://67-72chevytrucks.com/vboard/s...d.php?t=415702 SOLD We were given two ears and one mouth for a reason... listen twice as much and speak half as often... |
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11-18-2014, 04:43 PM
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#3 |
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Registered User
Join Date: Feb 2014
Location: Brooklyn New York
Posts: 324
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Re: What is the size of the bolt for the harmonic balancer?
Chevy Mike, Thanks! I was scratching my head on this one. I don't think I am going to start tapping the crank shaft. If it was good for 50 years, who am I to change it, lol.
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