Posted By: In_The_Pink
'75 Big block I.D.- 440 or 400? - 09/26/10 03:36 AM
Can anyone I.D. this circa-'75 big block as either a 440 or 400?
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Looks like a 440. See if you can have the owner check under that a/c bracket for the machined pad. Most full size Winnebago's that I've seen, like that one, had the RB motor.
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What is the casting numbers on the side of the block?
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Thanks, will do. Will it be stamped "440" in that location?