Demon 340 vs Camaro 396 (400)

Many Chevy guys called the BB 402 the 400. GM even put the 400 emblems on some cars. Many also continued to call it the 396. but in 70 GM actually gave the 396 engine a .032 larger bore, thus making it actually 402cu in. It is the same engine Chevy put in the 71 Chevelle SS . I had a 71 BB 402 not too long ago that also had the 400 , 300 HP decal on the air cleaner lid.