Posting this picture of the adapter plate removed. Used a small cat's paw prybar, it took a lot of force. 

Thanks for all of your input!

Brent





.150 Stroked Y-Block:327.25 ci @ >1hp per ci
 

The plate is not threaded to the block. It's stuck to the gasket. Pry it out. You need a new kit anyway.

Got the nut/threaded nipple off. Is the plate threaded on to the block? Went after it a bit, feels really solidly attached.

Thanks for all of the help!
Brent
1955 Thunderbird




.150 Stroked Y-Block:327.25 ci @ >1hp per ci
 

charlley[ is spot on take the socket to a machine shop and remove the champher i then use the impact being sure to hold it towards the nut[/quote]

It is an add on, not a cast in feature.  Remove that nut to get it off.


Lawrenceville, GA

I have removed the threaded nipple on a different block. I'm uncertain how the plate is attached. Sure looks like it is part of the casting, not an add-on adapter as the picture shows.
 



.150 Stroked Y-Block:327.25 ci @ >1hp per ci
 

I've used a chisel more than once to get one of these to turn. They can be super tight with age. Several heat/cool cycles may help or as stated let the machine shop do it.

Y's guys rule!
Looking for McCullouch VS57 brackets and parts. Also looking for 28 Chrysler series 72 parts. And early Hemi parts.

MoonShadow, 292 w/McCulloch, 28 Chrysler Roadster, 354 Hemi)
Manchester, New Hampshire

From the look of the hex nut I think I would leave removing that to the machine shop. Buy a new fitting. Pete

You have to remove that fitting.  Given how damaged it is, you will absolutely need a 6 point socket.  Sockets are usually chamfered on the inside edge.  Since the hex portion of the fitting is so thin, you need to remove that chamfer by grinding it down on a belt sander or some other means that you can ensure that it is reasonably flat and square.  That helps to ensure that the socket does not slip off of the hex and actually helps quite a lot even if the fitting is not damaged.


Lawrenceville, GA

Hello,
Prepping for the hot tank. How is the oil filter adapter removed?
Thanks!
Brent




.150 Stroked Y-Block:327.25 ci @ >1hp per ci