Modify stock heads??

[bearforpunishment]

Hey.....
I bought a parts engine that has a 3/4 cam in it. Can I modify the stock merc 255 to accept the higher lift ??

 

[bearforpunishment]

More info....merc 255 flathead in car running. Parts engine has cam and lifters I will swap if I can find heads or modify stock ones....If possible?
Have 48 offy aluminium heads that I can't use on the 51.

 

[Charlie Stephens]

Welcome to the Barn. You placed your post in a forum that is intended for questions "To The Editors" of the site. Leave the post here but also post it here: https://www.fordbarn.com/forum/forumdisplay.php?f=4

Charlie Stephens