If manifold threads are good, use studs, and go. So much unfounded fear about those things.
As someone mentioned, if you are scared to death that you are going to shear or strip out 4 thread holes in an alum intake manifold, back it up with a ratchet strap. Tensile strength for all materials far exceed the weight of an engine by a factor of more than 10.
We used those plates in a shop all day, every day for 10+ years, zero failures.
Operator error is going to be your biggest concern.
As someone mentioned, if you are scared to death that you are going to shear or strip out 4 thread holes in an alum intake manifold, back it up with a ratchet strap. Tensile strength for all materials far exceed the weight of an engine by a factor of more than 10.
We used those plates in a shop all day, every day for 10+ years, zero failures.
Operator error is going to be your biggest concern.
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