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Re: HOW TO TELL IF ITS A 440 6-PACK BLOCK
[Re: Mopar_Mike]
#266112
03/26/09 09:28 AM
03/26/09 09:28 AM
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Joined: Jan 2003
Posts: 75,282 A gulag near you.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,282
A gulag near you.
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Correct me if I am wrong, but I thought that the 6 pack motors had 4 "eyebrows" in the pistons ? As in valve reliefs. I realize that this involves popping a head off, but is this information correct ?? I am interested in this answer also. I have a 72 Sat (parts car) that came with a 440HP & 4 speed. The motor is supposed to be out of a 6 pack car. It has the 6 pack bottom end , it has the correct damper. The funny thing is , it is possible. This car was pieced togethor many years ago, with a ton of good parts, factory cassette deck, air grabber hood, front and rear spoilers , 2 72 RR grilles etc. Even came with a mint spare drivers door with a 71 6 pack RR vin attached to it .
You're correct; there are a few things (like the valve reliefs) that are unique to a 440-6 but it's irrelevant unless you KNOW the engine hasn't been changed or rebuilt in the last 39 years.
OTOH there is no such thing as a "six pack bottom end": all HP motors starting in '70 used those rods and damper......and as it's already been said, there is nothing unique about the block itself.
Dave
So.. all 70+ 440HP engines have "six pack" rods and the elliptical "six pack" damper?
Correct till about 73 or 74 ...
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