What Year 302 Is This #

[1fstpony]

I was wondering what year 302 this might be? I bought a 302 that I'm putting in my mustang and I need to get a diff. starter for and I need to know the year of.The #'s read.....D4DE-6015-AA and below that # is 4F11 Thanks

 

[Orange97GTVert]

D4 = 1974

 

[1fstpony]

thank you very much.