Are 427 And 454 Blocks The Same?
Are 427 And 454 Blocks The Same? True in cubic inches, a functional replacement, but not correct by casting number. 427 and 454 shared 4.250 bore, 427 has 3.76 stroke, 454 has a 4.0 stroke. RatVette has a 454 block 4.250 and a 427 crank 3.76 stroke=427. What is the biggest small block? The largest-displacement