<VV> piston clearance

[Joel McGregor]

Pistons are tapered from top to bottom with the bottom being largest.  More mass and more heat at the top causes more expansion.
Cast pistons can normally get by with less clearance than forged because of the difference in density and therefore expansion.
Joel McGregor

-----Original Message-----
From: VirtualVairs [mailto:virtualvairs-bounces at corvair.org] On Behalf Of Jerry Brown via VirtualVairs
Subject: <VV> piston clearance

And I assume the piston is supposed to be the same diameter from top to bottom