cutting pistons

[Hemidere]

I have a set of new TRW L-2322 12.5 to 1 pistons. Has anyone cut down a set, and if so how much did you safley remove. Or, how much needs to be removed to get close to 10:1 with "X" heads. Any help greatly appreciated...thanks

 

[70aarcuda]

i have a set that is cut down...they were cut enough so that the dimple where the spark goes is just gone...

 

[340plot]

when you take them to a machine shop, they will know how far to cut them. they will first check them for thickness, and if they are even able to be cut. i had a set cut, cost me like 40.00 for all 8, and also re-weighed, so they were all exact.

 

[oldkimmer]

.........I have cut the TRWs so that the dome is completely off, the piston is perfectly flat on top, except for the valve reliefs....these are the old school pistons..........kim,.........

 

[cjh]

I have a set of new TRW L-2322 12.5 to 1 pistons. Has anyone cut down a set, and if so how much did you safley remove. Or, how much needs to be removed to get close to 10:1 with "X" heads. Any help greatly appreciated...thanks

Does TRW give a Crown thickness.....this should be used as a guide as to how much you can remove.
With 12.5:1 CR....you would need a cam with about 310* duration and 0.600" lift, and run it on 100 RON or better fuel......would go like a scalded cat too.

 

[Oldmanmopar]

Those pistons are pretty heavy compared to some of the new products available. Rods don't like extra weight.

 

[Hemidere]

Thanks guys, we have a machine shop where I work. Checking the thickness in the center of the valve relief give me a thickness of .265. What would be the minimum thickness I can mill the piston head to. Thanks again...