Valves weight question Ti vs Stainless

Hi

I wanted to know what is the weight diferece between Ti valves and Stainless valves.
For example my Stainless Edelbrock 1.81" exhaust valve weighs 115 grams (4.06oz) and stock 452 head 1.74" weighs 110 grams (3,88oz).
I was looking online for some manufacturer values but did not find much. I read somewhere that titanium valve is around 40% lighter.
Is it really that much?

Thank you.