Winter, Keith Black - Silvolite has a listing for the #3454

http://www.kb-silvolite.com/spistons.php?action=details&S_id=216

If this link doesn't work go to their web site kb-silvolite.com, then under Products - Piston - Diametrical Listing, you will find it listed by bore, compression height, and wrist pin. Nice list if you know your piston spec.s and were you can modify. They show standard. I've contact the Customer Support thru the web site and got results.

Larry

Ignorance can be fixed Stupidity is forever