piston stop

[Gemmer]

Will a piston stop fit down our long ass spark plug chambers or would I have to make my own.

[RednBlack]

If you are talking about the brass ones, I would say no, unless you do a little trick. Use some black trim adhesive and glue a socket onto the end of it. Makes installation and retrieval easier. I use the same set-up on my plug hole chaser.