George
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Joined:
Apr 2012
Flora, IL
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Hi all. Just wondering if anyone knows the exhaust manifold bolt sizes. Although, they need to be about 1/4"-1/2" shorter than stock. Thanks
88 TC with reman Airesearch T3 .58ar, Walbro 255, cone filter, Gillis mbc set @ 17psi, Mustang A-pillar pod with vac/boost and a/f, full 3" single exhaust w/ Dynomax ultraflow muffler and header, recirculating BOV custom tapped to factory intercooler
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Pete D
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Joined:
Apr 2001
Northern OH
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05-12-2013, 11:09 PM
(This post was last modified: 05-12-2013, 11:12 PM by Pete D.)
These are some notes I had from awhile back that I just found
The size is M10 X 1.50. The grade was better than 8 but I don't know the exact spec. At one time 40bob was using 12.9 bolts with his headers
On the stock bolt only, I get the following:
head size is 17mm. Thread spec is 10mm X 1.50
*Over all length is 2.378" inch (all following is in inches)
*Bolt body length (below bolt head) = approx 2.087"
* Length of threads = approx 1.195"
These last 2 specs apply to the studded bolts also.
* the overall length is 3.050"
* the stud length is 0.655", same thread size
Pete Dunham
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