Mopar Max Wedge heads

[moparmusclecars]

Bought these back in 2005. Casting numbers are 2406518-M Did the "M" mean they were direct replacements for the original 1964 heads with the same casting number, or what? They are heavy heads still in the mopar boxes, but the part numbers on the boxes are scuffed up and hard to read. What exactly do I have here? Thanks

 

[SUPERSTOCKRACER]

MP reissuedthe heads as the replacement for the stage III version.
there were 2 types made.1 incorrect w freeze out plugs and 1 type correct no freeze out plugs.
does yours have the incorrect freeze out plugs in front of your heads?

 

[moparmusclecars]

Max Wedge heads

I'll have to look again, but if i remember correctly, there is no plugs on these heads. I'll check and let you know. Thanks for your reply. Much Appreciated!