Originally Posted By: Mitch
What/where are the better 307 cast pistons? I've checked Summit and Jegs with no luck. I have no problems sending the pistons back (if Summit will allow) as long as I can find some replacements.

This thing is starting to get closer to seeing boost...


I do not have any catalogs here.

If the pics are correct. Then these are the ones to get.
http://www.ebay.com/itm/Chevy-307-Sealed...7c71a72&vxp=mtr

Maybe these?

http://www.ebay.com/itm/68-73-Chevrolet-...4b2734d&vxp=mtr

Or ?
http://www.ebay.com/itm/1968-1973-Chevy-...0c847c6&vxp=mtr

Or ?
http://www.ebay.com/itm/Federal-Mogul-TR...0934453&vxp=mtr

Seeing some boost could be a good thing, & an easy way to get a bunch more power, just keep the boost low w/cast pistons & other preventative measures to prevent detonation.
MBHD

12 port SDS EFI