172 cup engine issue?

[Superninj]

Hi l, dropped another 172 engine into my project 172 cup which I purchased off here, which was needed as a replacement due to a blown head gasket.

I’ve put the car back together new oil, filter, radiator etc and bled the system and on starting I’ve noticed a noise I’m not sure what it is???

If anyone has had similar or can point me in the right direction it would be much appreciated, thanks Andrew

 

[Louis]

Sounds fine?

 

[Superninj]

Thanks for the feedback been awhile since I’ve had a 172, just thought it might have a noisy water pump, it’s not coming out that clearly on the recording. I will give it a longer run