491 Drain threads

zieman

Can someone tell me what the thread is for the block drain on the straight 6?

Also what the thread is on the radiator drain?

the radiator petcock on the was removed and so was the block plug when the car was parked many years ago and i need to get them replaced so i can fill the cooling system.

 

thanks,

Rick  

BillUSN1

Both mine are 1/4npt

zieman

thank you, i will clean them with a tap and see if i can get it sealed up.