440 piston marks

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Old Jan 10, 2012 | 05:43 PM
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Joe's challenger's Avatar
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440 piston marks

Gang I started taking my 440 apart- check out my album. I have a pic of the piston that have 2 marks on each piston that all face the front direction, is there a reason for this? Also not all pistons have the marks as equal as others, why?
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Old Jan 10, 2012 | 07:48 PM
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bremereric's Avatar
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Yep they tell you to point the pistons to the front of the block. Some have one mark and some have a F on the side of the piston.
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Old Jan 11, 2012 | 03:59 AM
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Thanks, that what i figured. Joe
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Old Jan 11, 2012 | 05:51 AM
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440roadrunner's Avatar
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The piston pins are offset. Years ago, some of the guys I knew in San Diego used to recommend turning them around (stock, flat-top only, of course) for more HP. Supposedly the pin offset pulled the torque/ HP curve down. I figured the factory knew best, and put them back as the shop manual specified.

By the way, you can download some shop manuals here, for free There are some posted over at MyMopar.com

Scroll down the thread, there are several versions you can download.

http://www.forabodiesonly.com/mopar/...al%2C+download
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Old Jan 11, 2012 | 04:13 PM
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Originally Posted by 440roadrunner
The piston pins are offset. Years ago, some of the guys I knew in San Diego used to recommend turning them around (stock, flat-top only, of course) for more HP. Supposedly the pin offset pulled the torque/ HP curve down. I figured the factory knew best, and put them back as the shop manual specified.

By the way, you can download some shop manuals here, for free There are some posted over at MyMopar.com

Scroll down the thread, there are several versions you can download.

http://www.forabodiesonly.com/mopar/...al%2C+download
Thanks this is Awesome!, I just spent 90.00 for the 73 sevice and body CD.
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