Just found this site looks real good now my ? I have a 54 mercury with a 256-V8 I changed it to 12v will a 56 and up ford starter fit. The starter worked good for a while then it stop so I tore it down and put brushes in and it worked good now it will not turn over the batt. is up the post are clean so I was thinking about a 12v starter.I'll help out if I can. Thanks!!!

12 volt Y block starters will fit.  There are mini hightorque starters now available for Ys also.

John - "The Hoosier Hurricane"

Thank you very much!!!!!Do you know about how much?

Could someone tell me where I can buy a 12v starter for a 54 mercury 256v8? Thanks

If you go on Ebay there are 2 listed.One with drive and one without for 12 volt.If you do an internet search for Ford Y block starter there are several listings including one for a mini high torque starter for $179.00 I believe plus shipping.Your local auto electric shop MAY be able to rebuild yours into 12 volt or they may be able to get a rebuilt 12 volt one exchange.The 12 volt starters are all the same from 56-64.If you do a search under "starter motor" in the little box at top of page there is info there too.Click the "search" box at top of page.