Hi

[Steeveedee]

Originally Posted by Kalums

Stock (old) temp sending unit is bad and new ACDelco temp sensor is too big for the driver's side head "hole" between 1&3 on this block... Fits old block but not new. I don't know where to go at this point besides stick the new sending unit in the intake manifold? New unit matches old stock unit

Putting the stock sensor in the intake manifold will work just fine. And it's less money than buying one that has been machined to fit the head.