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440 Six Pack pistons #1670966
09/14/14 06:20 PM
09/14/14 06:20 PM
Joined: Aug 2007
Posts: 732
USA
4
440mopar Offline OP
super stock
440mopar  Offline OP
super stock
4

Joined: Aug 2007
Posts: 732
USA
I am having my original 440 six pack engine rebuilt and the rebuilder has told me the block needs to be bored .030. I would appreciate any recommendations on what stock-type 30-over pistons I should get and also who has the best price on them. Thanks.

Re: 440 Six Pack pistons [Re: 440mopar] #1670967
09/14/14 06:34 PM
09/14/14 06:34 PM
Joined: May 2010
Posts: 207
warren, mich.
D
dwayne welder Offline
enthusiast
dwayne welder  Offline
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Joined: May 2010
Posts: 207
warren, mich.
Mahle or Diamond!!!!

Re: 440 Six Pack pistons [Re: dwayne welder] #1670968
09/14/14 06:36 PM
09/14/14 06:36 PM
Joined: Jan 2003
Posts: 9,826
las vegas
70AARcuda Offline
master
70AARcuda  Offline
master

Joined: Jan 2003
Posts: 9,826
las vegas
Speed-Pro Forged Pistons L2355F

those are the replacement pistons


Tony

70 AARCuda Vitamin C
71 Dart Swinger 360 10.318 @ 128.22(10-04-14 Bakersfield)
71 Demon 360 10.666 @122.41 (01-29-17 @ Las Vegas)
71 Duster 408 (10.29 @ 127.86 3/16/19 Las Vegas)
Re: 440 Six Pack pistons [Re: 70AARcuda] #1670969
09/14/14 10:29 PM
09/14/14 10:29 PM
Joined: May 2010
Posts: 207
warren, mich.
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dwayne welder Offline
enthusiast
dwayne welder  Offline
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Joined: May 2010
Posts: 207
warren, mich.
You have to ask yourself, do you want old technology, SPEED PRO, or new technology, MAHLE or DIAMOND, etc!!!!!

Re: 440 Six Pack pistons [Re: dwayne welder] #1670970
09/14/14 10:31 PM
09/14/14 10:31 PM
Joined: Jan 2003
Posts: 9,826
las vegas
70AARcuda Offline
master
70AARcuda  Offline
master

Joined: Jan 2003
Posts: 9,826
las vegas
Quote:

You have to ask yourself, do you want old technology, SPEED PRO, or new technology, MAHLE or DIAMOND, etc!!!!!




just pointing out the replacement...his decision on what to buy...


Tony

70 AARCuda Vitamin C
71 Dart Swinger 360 10.318 @ 128.22(10-04-14 Bakersfield)
71 Demon 360 10.666 @122.41 (01-29-17 @ Las Vegas)
71 Duster 408 (10.29 @ 127.86 3/16/19 Las Vegas)
Re: 440 Six Pack pistons [Re: 440mopar] #1670971
09/15/14 02:16 AM
09/15/14 02:16 AM
Joined: Jan 2003
Posts: 5,122
Chicago Blackhawks
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hemicar1971 Offline
master
hemicar1971  Offline
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Joined: Jan 2003
Posts: 5,122
Chicago Blackhawks
Is this 440-6 a big rod motor 1970-1-2 or a 1969 440 small rod motor.


1971 HEMI E BODY REGISTRY
Re: 440 Six Pack pistons [Re: hemicar1971] #1670972
09/15/14 07:32 AM
09/15/14 07:32 AM
Joined: Aug 2007
Posts: 732
USA
4
440mopar Offline OP
super stock
440mopar  Offline OP
super stock
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Joined: Aug 2007
Posts: 732
USA
It's a 1970 motor.

Re: 440 Six Pack pistons [Re: 440mopar] #1670973
09/15/14 03:58 PM
09/15/14 03:58 PM
Joined: Jan 2003
Posts: 16,376
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dogdays Offline
I Live Here
dogdays  Offline
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Joined: Jan 2003
Posts: 16,376
IMHO you would best be served by using a lightweight forged piston from Diamond or others in that price range.

There are dealers who are board members. The L2355F is a hammer, it weighs way too much and actually slows the car down. You should be able to save nearly 200grams per piston/pin, which is about 7 ounces. In reciprocating weight, that's a lot.

R.

Re: 440 Six Pack pistons [Re: 440mopar] #1670974
09/15/14 04:41 PM
09/15/14 04:41 PM
Joined: Jan 2003
Posts: 31,050
Oregon
A
AndyF Offline
I Win
AndyF  Offline
I Win
A

Joined: Jan 2003
Posts: 31,050
Oregon
Depends if you're doing a resto or a performance rebuild. If it is a performance rebuild then I'd ditch the super heavy Mopar parts and use lighter weight rods and pistons. Then you can internally balance the engine and get rid of the special damper and flywheel. But all of that will cost you money so you just have to make the decision for yourself.







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