Had a 352 in a HD Ford 700. They are not the same as a 351 C. The 352 was a work horse and the 351 ( 70' cougar) was a street burner. I do respect the SB 289 ford motors, 283 chevy as well as the 273 Mopars. Just a bunch of fun SB motors, but the 340's rule in their placement in the A-Bodies.