340 stroker pistons

Have the block sonic tested to find out if it's thick enough to go 4.100" bore safely. I'm sure that Diamond and others will make you pistons.

Here are some.

http://www.campbellenterprises.com/...l-block-mopar-318-340-360-diamond-pistons.htm

http://www.rpmmachine.com/diamond-sb-mopar-flat.shtml