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#1237246 10/01/2017 5:19 AM
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'Bolter
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I have a rebuilt 235 long block with a 848 head. The head was not attached to the block so I don't have any head bolts. I have been searching for a couple of hours regarding the head bolts and have read a lot of good information about them. I understand there are two lengths used but I can't find the actual number of short and long bolts. How many of each do I need? Thanks in advance


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A teacher, but always an apprentice.
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Look at the head. You will be able to see where the bolts go and be able to tell if the head is thicker or thinner at that spot and this will help determine how many of each you need.
For example, along the intake/exhaust side where the bolts go is thinner, so you need the shorter bolts for that location.


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'Bolter
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The Chevrolet Master Parts Manual that you can read on line
the at the Old Car Manual website usually gives the bolts dimensions.
Jeffrey

http://chevy.oldcarmanualproject.com/1929_57chevyparts/57cmpc0137.htm



Last edited by 32vld; 10/01/2017 3:14 PM.
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'Bolter
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Thanks for the info/link.


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Shop Shark
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Herte's a couple of photos of GM NOS head bolts

I purchased back in 2010 .

I don't believe in using used head bolts .

@ photobucket

Long Bolts

http://i669.photobucket.com/albums/...%20GM%20NOS%20%203835812_zpshooekt4z.jpg

&

Short Bolts

http://i669.photobucket.com/albums/...t_/GM%20_NOS_Head_Bolts__zps5iayqdm5.jpg



George
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'Bolter
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Originally Posted by Rusty Shackleford
Thanks for the info/link. Are the lengths listed overall lengths? Some bolt manufacturers list the length from under the head to the end.
Rusty, read that link. It gives length, diameter, and thread. Jeffrey

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'Bolter
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I`ve got 1/2 -13 3 1/8in. (short) and 1/2-13 4 1/2in (long). Thanks for the info.


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