piston resizing

[Mike Pearson]

Originally Posted by Adger Smith

Call Frank Parks. He has started doing pistons for the Nostalgia Dragster crowd. He might be able to give you some advice or even do what you want.
His Son Scott is very talented and can do just about anything with a CNC.

Thanks Adger. Can you send me a Pm with his contact info or text to 813-433-4742

[RonP]

Hi,
Normally, OEM piston skirts are tapered horizontally and vertically.
The top land is also tapered from the chamber down to the top ring groove.
All the land diameters are specially sized too.
Ring grooves should be adjusted appropriately as well.

Trying to resize the piston will be difficult with the center boss removed.

Resizing a piston without a properly tapered shape would be a concern for scuffing,...especially for high rpm, high load applications.

Thanks, Ron