400 to 351C
Last edited by kool9; Apr 22, 2006 at 06:32 PM.
Secondly, if you're sure the 351 is a C motor, you will need a new tranny to go along with it. The 400 can be made to run pretty strong. If you are talking about rebuilding one or the other before it goes in the truck, stick with the 400 and spend the money you would for a tranny on other HP parts.
--Mike


