engine block coolant drain plug?

[DSilvaSport]

Can anyone tell me where it is? 182 F4R

thanks

 

[DSilvaSport]

And the capacity too if anyone knows.

 

[MrDave]

Next to thermostat to left of/under air box.

5 and a bit litres. 5 might be enough.

 

[DSilvaSport]

Thanks. Without looking yet does that mean it is fairly high up on the block/head and I would need to remove thermostat to flush through?