ls3 intake bolts
Teching In
Joined: May 2008
Posts: 18
Likes: 0
From: N. IL
Here is what I found;
GM part #12552344 (M6 x 1 x 114).........................................$8.60 list ea
Fastenal part# 38581 (M6 x 1 x 120) zinc hex head....................$0.68 each
McMaster Carr #91280A368 (M6 x 1 x 110) zinc hex head............$3.79 for 10
McMaster Carr #91292A423 (M6 x 1 x 120) stainless socket head..$6.01 for 5
114mm = 4.488"
110mm = 4.331"
120mm = 4.724"
GM part #12552344 (M6 x 1 x 114).........................................$8.60 list ea
Fastenal part# 38581 (M6 x 1 x 120) zinc hex head....................$0.68 each
McMaster Carr #91280A368 (M6 x 1 x 110) zinc hex head............$3.79 for 10
McMaster Carr #91292A423 (M6 x 1 x 120) stainless socket head..$6.01 for 5
114mm = 4.488"
110mm = 4.331"
120mm = 4.724"
I recently picked up 10 from fastenal using that part number. They worked fine as is. I just threw a washer under the head of each bolt since theres no flange or anything like the stock ones do.
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I wanted black bolts, so I went with ARP. The cost was about 1/2 the cost of new GM. As mentioned, generic m6 bolts are the cheapest route provided you can find the right length.
