Join Date: May 2001
Location: Chattanooga, TN, USA
If you just want it to look like a Yenko, from the outside, that's about $ 300 worth of badges and stripes. You could use any 396,402,or 427,or even a 454. However, the challenge, expense, and for me, the fun is in finding many of the "correct" stuff for the Yenko. Mine started life as an X11, small block, auto, with A/C. I'm going back as an X11 427 (LE out of a 69 Impala) M21, 12 bolt 3.73 posi, chambered exhaust, etc. etc. But I'm keeping the A/C. I searched out "correct" parts, like heads, carb, water pump, etc. but I am making no attempt to fake out anyone. I changed no numbers. I'm just building a nice, drivable, tribute car.
So, it's all in what you want.
I agree that using an X44 is the best choice. Remember, most were X44, anyway. But I'm betting X11 will be easier to find, as that was the catch-all number.