Originally Posted by mattlea1
The numbers on my 77 LTD says that its a 351 4V its matching numbers but im certain its only a 2V any ideas?
The 4V reference made in your manual will be to the "other" or real meaning of the term 4V.........which is 4 Venturies, ie: you have a 4 hole carb and manifold. 2V = 2 barrel carb/manifold.
All the XD/E's are referred to as 4V 351's............but not "really"!!
A 4V "Head" has a small "4" cast into the top front corner where the rocker cover sits and the ports, as you know, will fit a tennis ball inside!!