Quote:
Some guys hull out a spark plug and weld a bolt or piece of rod in it that will be where the piston stops against it
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Which sounds so easy that when I was in my early '20s I said "Oh! I'll just bust the center out of this R45TS plug, drill the center, and weld in a bolt." Well, it turns out that the body of an AC Delco Plug is hardened steel! It took a long time and a lot of re-sharpening to get a drill through that old plug. So if you decid to make a DIY piston stop, use a Champion plug.