Does anyone know if I need a shorter stroke/connecting rod to accomodate the extra height on a domed piston?

Thanks All

 

Any chance you could be a little more vague? Geez.

 

It's a general question. I'm sure I could google it or something, but I figured I'd ask here to see if anybody knows. I don't know much about pistons or anything that goes into them, so I can only ask as much as I know

 

Still too many variables. Can't answer it.

 

You can't google it. You have no meaningful information to input to Google. GIGO, as they say.

To expand just the smallest bit on Mark's comprehensive responses:
Maybe we should start at the beginning: Why do you want to install domed pistons in an Oldsmobile?
Are you building a drag car?

- Eric

 

You really should start at the beginning and answer Eric's question. But I'll give you a very direct answer to your original question:

You can make a mold of your combustion chamber and custom order pistons (from several companies) which will not require different rods or crank and will not create valve interference. You will, of course, have seriously increased your compression ratio, and if the rest of the engine is not built to deal with that, performance will suffer (at best) and you will have a time bomb (at worst).

 

Brian, you answered my question, thanks. And I don't know anyone who makes domed pistons for Olds motors, just companies that make custom pistons.

But I guess this is what originally sparked my curiosity.

I was looking at Chevy stuff and noticed that there were domed pistons available for SBCs. There were no warnings about the extra height of the piston or anything that said "Bey you might wanna get a shorter connecting rod". I know domed pistons increase compression and I'm not building a drag motor (yet) I was just curious as to whether any other mods would be needed if I had an SBC and decided to switch out stock pistons for domed.

Like I said, Brian answered my question, so thank you.