429 Big Block
 

Does anybody know what kind of heads came with the Ford 429 big block? The motor I am rebuilding is a 1973 429 BB that came out of a 1974 Mercury Grand Marquis. I am rebuilding the motor and am about to polish the heads, but I wanted to know what heads they are and if I can put on A460 heads instead of the ones I have now. Thank you to everyone who responds.

I do not have extensive knowledge nor info on these engines, but here is what I do have on heads for 429/460's.
Casting year cc note
d0vz-6049-d 68-71 74-77 Standard head
D00z-6049-h 70-71 71-75 CJ/SCJ
D2oZ-6049-A 72 87-90 P.C.
D2VY-6049-B 72 89-92 Standard Head

I would be concerned about your chanber volumes, but other than that I think 460 heads work just fine on 429's.

Thanks Thunderbolt. That helps me out a lot.