Oil filter boss gasket - How to install?

marcus mcgee

New member
Sep 29, 1997
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Paul gave me the correct GM part number for the gasket that goes between
the block and the oil filter mounting boss. It is GM #563450. Called
around and a dealer about 25 miles away had one squirreled away. Turns
out to be metal (as Dick Patterson said) and actually was for a 403 Cad
or something like that. The one for the Olds 455 does not fit. I got
one from Dick Miller Racing and it was clsoe but not right. Seems the
original GM is about the only one left.

Question:
How to install? I believe Dick said to install it dry (no silicone).
Is that correct?

Marcus

PS: The part cost $1.35 including tax.
 
Emery;

Thanks, but that is not the gasket I was refering to. The gasket is the next one
towards the block. The oil boss is the part that extends out from the block,
then the interface to the oil cooler and then the oil filter. I suggested to all
to change the gasket between the oil boss and the oil cooler adapter which is the
same as the gasket on the oil filter. The one I am talking about is at the block
and is between the oil boss and the block, it is a metal crush gasket.

Marcus

>
> Question:
> How to install? I believe Dick said to install it dry (no silicone).
> Is that correct? >>
>
> Yes that is correct. The original gasket is identical to that found on the
> oil filter that fits your GMC. It is not necessary to purchase a gasket from
> GM. Just pull the gasket from your oil filter (it is just pushed into a
> groove) and put it above the adapter. Put on a new filter and you are all
> set. My original gasket was about 15 years old and was brittle and cracked.
> I now replace the gasket about every two years when I am changing the oil
> filter. The keeps the gasket relatively fresh.
>
> Emery Stora
> 77 Kingsley
> Santa Fe, NM
>
> Emery Stora
 
No is does not, however I had a small leak in the area and wanted to cover
all my bases.

Marcus

>
> and is between the oil boss and the block, it is a metal crush gasket.
> >>
>
> Thanks for the clarification. Does this metal gasket go bad and need
> replacing often?
>
> Emery Stora
> 77 Kingsley
> Santa Fe, NM