[1963galaxiexl]

I am converting a 352 FE to a 390. The 352 was already .030 over so I just decided to complete the bore to 4.050 and put in standard size piston. My question is the 390 crank is longer than the 360 which was there previously so how is my pulley and balancer affected. Also, will my timing chain cover, water pump and other attachments work??
Any suggestions on what cam to use. I thought I had a 428 but not sure.