Yes, but make shure the 72' block has the extra water passage. If not you will have to plug it in the heads.
heads i am almost positive that 72 heads will fit on a 73. i rebuilt a 71 455 and the original heads were cracked so i bought some at a yard and install them. they were 72 heads. after i finished the rebuild w/ those heads i had water in the oil due to the 72 heads having that extra water outlet. good luck
heads 72 - 73 heads will interchange you cant go backward is all cant use 72 or newer heads on 71 and earlier engine without plugging coolant holes near exhaust crossover on head,:TU: andy
Hi Guys, Actually there are some old-wife's-tales still circulating among the Buick community concerning heads and blocks. Take a look at this past thread for a complete "run-down" of the differences of heads and blocks and what year what can be used with what year what. I think I have pretty much covered the bases when it comes to this subject. Here's a link....http://www.v8buick.com/showthread.php?s=&threadid=27210&highlight=round+cleanout+holes This one also....http://www.v8buick.com/showthread.php?s=&threadid=20584&highlight=round+cleanout+holes And this one....http://www.v8buick.com/showthread.php?s=&threadid=3028&highlight=round+cleanout+holes Hope this helps....
