Engine Case Plugs

[SeamusNZ]

Hi all from sunny New Zealand,

Can anyone tell me what these plugs are for??

Kind regards...

Seamus

[Scott V]

it a universal block. gm parts supply to fit all engines. kind of rare part you have there. in NZ no less!

the big plug is for the wagon & truck oil check/oil fill tube.
the small plug is the oil temp sensor - 1960/61 engines.

-Scott V.

[66vairguy]

I think Scott explained it all. Check the block number and post the two digit alpha suffix and we can tell you what it's from. It could be a universal replacement block, or a block from and FC/wagon.

The FC/wagon blocks are not as common. They allowed a low dipstick filler tube that could be accessed by opening a rear panel since the engine in a FC/wagon is covered by a lid.

[SeamusNZ]

Thank you guys. The engine is marked with a double x, I guess making it a universal replacement case. I'm not too sure where it came from, but it will form the basis of my Spyder engine. Non turbo of course.

Kind regards from New Zealand.

SeamusNZ

[66vairguy]

Yes - X's mean it's a factory replacement block.