Which bolts?

suprastupid

New Member
Apr 4, 2010
177
0
0
tx

suprastupid

New Member
Apr 4, 2010
177
0
0
tx
For those who care.. I did some researching and found stock motormount bolts have 4 lines = grade 6 bolt =140000psi tensile strength
Bolts I got are 8.8 which is supposed to be equivelant to grade 5 and has the tensile strength of 800mpa or roughly 116000psi which is actually less than a grade 5 rated for 120000psi. I'm not sure but now I don't feel comfortable running the 8.8 for motor mounts as toyota put grade 6 as stock, on a NA motor. With my NA-t putting out way more power than stock I don't feel comfortable with anything less than stock, especially when using the swap brackets you use a different set of holes on the intake side to mount the bracket which are of smaller diameter and 3line/grade bolts. Here are some links that helped me. If anyone would like to add PLEASE do...comments, suggestions, experiance?

http://www.cdxetextbook.com/toolsEquip/hpt/measuring/threadgauge.html
http://www.cdxetextbook.com/toolsEquip/hpt/measuring/threadgauge.html
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