Re: 273 Swapping Sides on Pistons

[Dodger7998@xxxxxxx]

Ok hope I am not opening a can of dead worms here, but will tell what I was 
 told many years ago.......
    to reduce rotating friction, turn your pistons 180  degrees when 
installing them,,,,,,,,,,,,,supposedly the story goes like  this,,,,,,,,,the pin 
in the piston is not dead center, and is designed to create  a very minimal 
amount of bind when at top dead center of the stroke,,,,,this is  done so as 
to eliminate piston rattle when the piston is in the process of  changing 
direction at end of stroke.......... the article that I read  on this also 
said that the engine would be noisy compared to the stock build,  but would not 
cause harm,,,,,,,if someone is interested I will try to find the  article 
and post it,,,,,,,,,,,,,,, dodger
 
 
In a message dated 1/28/2010 12:30:03 P.M. Central Standard Time,  
stevec@xxxxxxxxxxxxxxxxxxxx writes:


Tom,
We used to do it on big blocks all the  time (flat tops), but have
never tried it on a small block.  We were  always careful not to rev it to
much when the motor was cold but it seemed  that the motors made more power.

SC 

-----Original  Message-----
From: Tom Watters [mailto:tomwatters@xxxxxxxxxxx] 
Sent:  Thursday, January 28, 2010 12:58 AM
To:  1962to1965mopars@xxxxxxxxxx
Subject: 273 Swapping Sides on  Pistons


Over on the A-Bodies only Board, they are talking about  swapping sides on
the 10.5:1 pistons on 273's.  I had some confusion,  but it seems to make a
little sense.  Dome offset isnt centered, so  parts of the piston may come
closer to the head in places and more gap in  others.

http://www.forabodiesonly.com/mopar/showthread.php?t=84332 (3/4  down the
page is where part of it starts posted by Russ (Double  M).

Has anybody on the list done this in the past and had any real  success? 
What are the downsides to  this?

Thoughts?


Thanks
--Tom


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[Non-text portions of this message have been removed]


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Please address private mail -- mail of interest to only one person -- directly to that person.  I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic.  Thanks!

1962 to 1965 Mopar Clubhouse Discussion Guidelines:
http://www.1962to1965mopar.ornocar.org/mletiq.html and http://www.1962to1965mopar.ornocar.com/general_disclaimer.html.