Join Date: Aug 2011
Location: Albuquerque, NM
Ferrari Life Posts: 11,866
Welcome to Ferrari Life. You need to take the VIN, or serial number if pre-VIN, to Ferrari and ask them what engine was originally fitted to her. Should give you all the info you need. I have a couple of Swiss TR owners manuals, but they do not have that level of detail.
Sounds like the A049 engine may just be an upgrade of the A046, but I am no TR engine expert.
Present: 575M 135171
Past: Dino 246 GT 02984, 365 GTB/4 14009, 308 GTS 25125
Every day I look around, and if nobody is shooting at me, it is a pretty good day.