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Head Bolt Dimensions #2556534
09/30/18 06:45 AM
09/30/18 06:45 AM
Joined: Sep 2018
Posts: 1
New Jersey
D
Dave B. Offline OP
member
Dave B.  Offline OP
member
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Joined: Sep 2018
Posts: 1
New Jersey
We are Starting a project in Tech school on a Donated 6.1 engine
and as Cylinder heads will be going on and off often I wondered if anyone had the dimensions so i could order non torque to yield bolts?
Thanks for Your Help
Dave B.

Re: Head Bolt Dimensions [Re: Dave B.] #2556540
09/30/18 08:54 AM
09/30/18 08:54 AM
Joined: Jan 2006
Posts: 1,400
Trumbauersville PA
ric3xrt Offline
pro stock
ric3xrt  Offline
pro stock

Joined: Jan 2006
Posts: 1,400
Trumbauersville PA
M12 X 1.5 And top row is M8 I forget the Pitch on the M8


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Re: Head Bolt Dimensions [Re: ric3xrt] #2556561
09/30/18 10:59 AM
09/30/18 10:59 AM
Joined: Jun 2005
Posts: 2,776
Ontario Canada
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MattW Offline
master
MattW  Offline
master
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Joined: Jun 2005
Posts: 2,776
Ontario Canada
M8 x 1.25 i believe

Re: Head Bolt Dimensions [Re: Dave B.] #2556640
09/30/18 02:25 PM
09/30/18 02:25 PM
Joined: Feb 2003
Posts: 18,582
Rust Belt, SW PA
Silver70 Offline
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Silver70  Offline
I Live Here

Joined: Feb 2003
Posts: 18,582
Rust Belt, SW PA
M12 are about 5-11/16" over all, 5-1/4 under the head to end and 3-3/8 is threaded. M8 2" overall, 1-3/4 under head/washer to end. Used a tape measure, so close, but not perfect I'm sure.


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