Hello,
Yes, you will need to be at top dead center in order to properly install/torque the rocker arms.
And this need to be done manually, you do not want to crank it by the ignition.
Those bolts need to be torqued at 14 N.m (124 lb. in.) plus 30°.
I have attached diagrams for your reference.
Please let me know if you have any questions.
Thank you.
https://www.2carpros.com/articles/how-a-cylinder-head-works
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Sunday, October 24th, 2021 AT 10:11 PM