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Old 06-13-2010, 03:00 PM   #25
LTb1ow
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I don't know if this is correct, but a .060 over piston on a stock rod is not a good thing I thought. And yea, I am wrong, at least for LT1 world, aftermarket pistons are lighter.

F = Kg x Piston G's x 9.81m/s^2 x .2248

Stock Piston

@ 6500rpm = .532 Kg x 2720 g's x 9.81 m/s^2 x .2248 = 3191 lbs of F
@ 7000rpm = .532 Kg x 3160 g's x 9.81 m/s^2 x .2248 = 3707 lbs of F

Now switching to a Mahle 4.030 stock replacement piston (5.7" Rod)

@ 6500rpm = .464 Kg x 2720 g's x 9.81 m/s^2 x .2248 = 2783 lbs of F
@ 7000rpm = .464 Kg x 3160 g's x 9.81 m/s^2 x .2248 = 3233 lbs of F

Now going to the 6.0" Mahle piston

@ 6500rpm = .429 Kg x 2690 g's x 9.81 m/s^2 x .2248 = 2544 lbs of F
@ 7000rpm = .429 Kg x 3120 g's x 9.81 m/S^2 x .2248 = 2951 lbs of F


Bret Bauer work ^

Just seems like backwards thinking man, you are gonna pay to have the block cleaned up, bored out etc... a new crank and rods is not that much more. And you will need to re balance it all for the new pistons, so again, why not save up some more and do it all right, and at once?

Scat rods for ~200, and a new crank for ~500 area, ARP hardware in there and you have a stout bottom end.

Also, what are the flow numbers on those heads? Any thoughts on what kind of valvetrain you are gonna be running to shift round 6500?
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Last edited by LTb1ow; 06-13-2010 at 03:23 PM.
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