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Re: 67-72 or 73-87
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Originally Posted by bob308
chevy made the change to 402 in 70. it was a .030 over 396. it was something about the bigger bore bruning cleaner so the smoge pump was not needed.
you will not find 402 listed in the parts books. it will come under 400 4bl. the 400 2 bl. was the small block.
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and this
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