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Old 08-07-2009   #1
HAWAIIZR-1
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Default What is the weight of a stock piston?

Does anyone know the actual weight of a stock, bare piston? The only information I could find was in Cor-vette specs book that says it is 1.4 lbs.

Thanks!
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Old 08-07-2009   #2
tpepmeie
 
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Default Re: What is the weight of a stock piston?

Average of 8: 486g, high 490/low 484g

this is on a 90MY engine.
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Old 08-07-2009   #3
ZR1Vette
 
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Default Re: What is the weight of a stock piston?

Wow...quite a discrepancy between the numbers:
484g 1.067 lb
490g 1.080 lb
486g 1.071 lb

vs 'Corvette spec book' at 1.4 lbs
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Old 08-07-2009   #4
HAWAIIZR-1
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Default Re: What is the weight of a stock piston?

Quote:
Originally Posted by tpepmeie View Post
Average of 8: 486g, high 490/low 484g

this is on a 90MY engine.

Thanks for the info; I really appreciate it. What else should I believe from this book if this info is so far off?
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Old 08-07-2009   #5
HAWAIIZR-1
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Default Re: What is the weight of a stock piston?

Quote:
Originally Posted by ZR1Vette View Post
Wow...quite a discrepancy between the numbers:
484g 1.067 lb
490g 1.080 lb
486g 1.071 lb

vs 'Corvette spec book' at 1.4 lbs
Thanks. I was trying to compare the difference of some forged JE stock sized pistons that I have. These are 448g or 15.80 oz

Last edited by HAWAIIZR-1; 08-07-2009 at 04:07 PM. Reason: spelling
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Old 08-08-2009   #6
blackjack
 
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Default Re: What is the weight of a stock piston?

the corvette spec book probably gives you the total weight of what is referred as a piston kit,: piston,rings,wrist pin and locks...they do that for balancing information
bj
91/1735
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Old 08-09-2009   #7
HAWAIIZR-1
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Default Re: What is the weight of a stock piston?

Quote:
Originally Posted by blackjack View Post
the corvette spec book probably gives you the total weight of what is referred as a piston kit,: piston,rings,wrist pin and locks...they do that for balancing information
bj
91/1735
Thanks, that makes sense.
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