harmonic balancer

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May 20, 2013 | 06:28 PM

greggome

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Joined: May 2013

Posts: 3

harmonic balancer

Anyone know the bolt size on a 68 327/350 that attaches the harmonic balancer to the crankshaft?

May 27, 2013 | 02:50 PM

aceinthehole

Junior Member

Joined: May 2013

Posts: 9

From: Valley Springs, Ca

I'll go se If I can find one laying out.

May 27, 2013 | 03:13 PM

aceinthehole

Junior Member

Joined: May 2013

Posts: 9

From: Valley Springs, Ca

The head size of the center bolt, not the pulley wheel bolts (3) is a hardened 5/8" fine thread I believe, but I'm not sure of the exact pitch. I know I had one around but it got burried somewhere.

Jun 6, 2013 | 08:20 PM

aceinthehole

Junior Member

Joined: May 2013

Posts: 9

From: Valley Springs, Ca

bolt size

well, I'm sure you already have one by now but just for the record, that bolt is a 7/16" 20tpi, 2 1/4" long Grade 5.

Jun 7, 2013 | 10:57 AM

73shark

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Joined: Apr 2006

Posts: 4,212

From: KC, MO area

My original bolt is a Grade 8.

Jun 8, 2013 | 01:28 PM

aceinthehole

Junior Member

Joined: May 2013

Posts: 9

From: Valley Springs, Ca

bolt

Mo' better.

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