Differences between stock C code and A code 289
In modifying a stock 1966 200 HP 289 C code to be a stock 225 HP A code, there's the obvious change of the intake manifold and carburetor. I have found the correct intake and Autolite 4100 CZF-B carb.
What else were the differences between the C and A builds? Did Ford use a different cam or heads? Was anything different in the short block like crank, rods, bearings?
I found a good C code 289 and am going to rebuild it to stock A code specifications. The cylinders will be bored .020" over and the crank .030" under. Since I'm having to buy larger pistons, I'm not sure if the C Code pistons were the same in an A code. Were the exhaust manifolds different? Did they have the same compression ratio?
Thanks for your help.
1966 2+2, 289 A code, AOD AT, 3.55 Currie Traction Lock, PS, PDB, AC, Pony deluxe interior & Rally Pac