Valve Seat Staking Tool (and head surfacing tool)

[Wittsend]

I know most aren't big on staking valve seats but it did seem interesting as to its origin. I was wondering if it is a "Chevrolet" tool, an aftermarket tool, or a homemade tool??? I'll post a picture as the link will probably die off at some point.
https://www.ebay.com/itm/126998825366?_ ... R4CU9s-4ZQ

Surfacing tool is stated to work with early or late: https://www.ebay.com/itm/126998653111?_ ... R4qU9s-4ZQ

[tomkeo]

DON'T DO IT!!!
TomKeo

[erco]

DON'T DO IT!!!
TomKeo

TOMKEO!!!! World's fastest Corvair! I'm a fan, I met you at the 1990 convention in Ontario CA. viewtopic.php?p=114319&hilit=keosababian#p114319

[vairmech]

The valve seat staking tool is totally aftermarket, that particular one looks like the style Clark's used to sell. GM did stake the seats but they had a full circle tool. I have pictures showing the original lines from GM.
As far as one of us using the tool shown. That is a BIG NO!
Attached is a pic of the GM staking.
<a href=" src="" title="source: imgur.com" /></a>

The head surfacing tool I have used one like that for many years even on my race engines until I got my Bridgeport set up to cut heads.

On the preview it shows 2 pics of the same thing, I only posted 1 link.