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View Full Version : What is the weight of a stock piston?

HAWAIIZR-1
08-07-2009, 03:23 AM
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!
tpepmeie
08-07-2009, 06:38 AM
Average of 8: 486g, high 490/low 484g

this is on a 90MY engine.
ZR1Vette
08-07-2009, 07:25 AM
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
HAWAIIZR-1
08-07-2009, 03:55 PM
Average of 8: 486g, high 490/low 484g

this is on a 90MY engine.


Thanks for the info; I really appreciate it. :handshak:What else should I believe from this book if this info is so far off? :dontknow:
HAWAIIZR-1
08-07-2009, 04:06 PM
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
blackjack
08-08-2009, 08:35 PM
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
HAWAIIZR-1
08-09-2009, 02:30 PM
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.