buldogg

iTrader: (1)

I was wondering how deep can you go on stock pistons when you flycut them?

I have heard .80 and then somewhere else said .100 Please someone chime in and unconfuse me

gomer

iTrader: (13)

My car is at .100 and have been that way for a long time. I have a couple of cars with some seriously milled heads with .125 flycuts. That's about as deep as I feel comfortable with. The weakest part of the piston is at the edges anyways.

buldogg

iTrader: (1)

thanks I think I will need to go .100 on mine and was scared to do it till I got conformation. What about on a FI motor does that matter any?

gomer

iTrader: (13)

LOL, forced induction motors and stock pistons don't get along real well anyways Every stock LS1 piston that I've seen fail has been at the edges due to a broken ring land. When your stockers die, that's where it will fail, not at the .100 flycuts.

Louis

iTrader: (7)

What he said

We have put 40k ruthless miles on .125 cuts with no issues at all, and .100 cuts on a car with a 150 shot and no problems.

The weakness is just like Gomer said, other areas of the piston.

santiago

iTrader: (28)

where do you buy the tool to measure your flycutting louis? I found the tool to flycut but what about the measuring tool?

EarlsWS6

Feeler guages are the measuring tool.

I have one for sale complete kit.





Link to my Garage Sale


https://ls1tech.com/forums/showthread.php?t=414829

buldogg

iTrader: (1)

thanks guys