There&#8217s not a whole lot of secret about what the 402ci significant block essentially was, correct? You are basically searching at a 396 that was bored .030 to get the further 6 cubic inches. Mechanically, the pair are identical. A single of the humorous factors while it was naming of the motor. When the 396 was slightly expanded in 1970, GM experienced masses of trouble figuring out precisely what they were being going to call this matter.

In lesser autos where muscle mass car or truck followers experienced developed to appreciate the 396 they saved calling it just that. In trucks they really known as it a 402, and in the huge automobiles of the time they known as it the Turbo-Jet 400. The motor codes adjusted somewhat with the addition of the LS-3 designation that denoted a edition that created about 330 in 1970 then 300 in 1971 and then 240-250 in 1972.

Soon after 1972 the 402 was discontinued and anyone needing a significant block just opted for the 454.

Check out out some Chevy 402 video clips underneath &#8211 a slightly bigger midsize large block &#8211


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