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Old 11-01-2007, 04:10 PM   #1
mellow65
Scooby Newbie
 
Member#: 83350
Join Date: Mar 2005
Chapter/Region: NWIC
Location: Portland, OR
Vehicle:
Too Many

Default any one know what size threads the head bolts are on a EJ motor

I need to replace my screwed up head bolt theads with some time serts and am a little confused with the size. i went over to ace hardware to use there "what size bolt or nut do I have" thing and the 12mmx1.25 extra fine thread fit, but it just felt to loose and nothing else fit right. so for the hell of it i tried the american size, and came up with a perfect fit of 7/16x20 fine thread. i was just thrown off that it was an american size and not metric.

i just need to know for sure what's up with this. i am planning on ordering the 7/16s one because it fit the best. but i still think thats odd.
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Old 11-01-2007, 04:26 PM   #2
mick_the_ginge
Citizen Mick
 
Member#: 27646
Join Date: Oct 2002
Chapter/Region: NWIC
Location: Portland, Oregon
Vehicle:
2003 Sleeved 2.5
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Head bolts are Metric 11mm X 1.25
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Old 11-01-2007, 04:49 PM   #3
mellow65
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Chapter/Region: NWIC
Location: Portland, OR
Vehicle:
Too Many

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ok that makes more sense, thanks
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