I asked a question a few days ago and a lot of people have been GREAT in trying to help me figure out exactly what this engine is that I have on my stand. THANK YOU ALL. Ive n=been told that posting my casting #'s would be the best thing to do but, I thought I knew where they are but I was wrong. Can someone tell me where I will find them at? Thanks again. Im just tring to find out what this is before I drop it in my 70 fastback. Ive been told that it is a 429 (thunderjet) Which I beleive but, others have told me its a 428 and a 460. I thought Id ask the PRO'S, you all.