Notching pistons???

[Sick5.0]

is there a good way to do it while they are still in the motor???

 

[giddyup306]

Dremel. Be VERY careful about removing ALL debris.

 

[Rick 91GT]

I made a custom fixture to do the pistons while they are in the motor, in the car...I also made the custom cutters, however ISKY does sell a cutter that uses your head.

 

[bock]

how do you no when you have made enough space?

and how about pistons balance?

 

[smittyb]

Do you have new heads to go on it?

 

[Marlboro_Man]

how do you no when you have made enough space?

and how about pistons balance?

Thats what i'm wondering too.

 

[smittyb]

Alright, you can use your old heads and an old valve to do the notching. Just cut teeth into the valve with an air cut off wheel. Bring the piston to be notched to TDC, put the modified valve ion the head, bolt it on, and chuck up the valve stem in a drill. As far as knowing how far to go, just keep checking. You should have some idea how far you need to go before you begin. Then just keep setting up your valvetrain and checking till you get there. Once you have the first cylinder done, you can make a mark on the valve stem and simply go to that depth on the others. You should remove the valve seals first, as they can be at different heights. The reason I asked if you have new heads, is you are gonna need new valve seats for sure.
How's that?

 

[bock]

if you go with 2.02 and 1.60 valves in tw,can you do this with the stock heads and valves?

 

[smittyb]

If you are trying to ask if you can notch pistons for use with TW heads using your stock heads, the answer is no.

 

[Rick 91GT]

I think your asking since the large valevs fit with a TW can you do it with a stocker? Well you can not put a 2.02 valve in a stock head, plus the larger valve will kill the flow of that small head.

The TFS fits since the valve location is Twisted, which moves it away from the centerline and actually allows for a slightly larger cam to be used.

 

[bock]

OK.

My tfs TW are ported and i think they need more cam than the f-303 that i have now.my shortblock is 100% stock.

Thats why im asking...