Ford 600 piston position

Welderguy

New User
Just got in a Tisco rebuild kit for my Ford 600. The new piston are not marked as to what side to face forward in the engine.
My old ones had a notch that indicates forward.
 
I dont know but probably position the rods in the same direction as they were on the old piston, going by where casting numbers are. Thats if you havent separated.
 
Warning; This is Hearsay as I have no direct knowledge!!!!!

A guy on another forum ask this same question.
Said the only mark he could find was a red paint dot on the underside of the piston.

A couple of guys went back and forth with different ideas but had no real answer.
Finally after several phone call attempts the guy got in touch with some people at Tisco.

Tisco said there is no front and back.
Due to advances in machining and the fact that the piston is the same on both sides; (ie; both skirts are the same; no difference in valve clearance) a NEW piston could go in either way.
The red dot he found was only a production run mark to identify different runs.

So while I agree it goes against the old school train of thought; If they can now machine a piston to perfect tolerances; and the fact that this is a straight line block with no variables to take into account; I can understand the logic behind it. You could try calling Tisco just to be sure.

You will still want to check your side clearance all around the piston to make sure the bore is true;
Set your ring end gap;
And make sure the connecting rod is facing the correct way.

Disclaimer for others that may read this.
We are talking NEW pistons here.
Used pistons will have wear patterns and should go back the same way you took them out.
 
(quoted from post at 05:33:05 08/12/17) Warning; This is Hearsay as I have no direct knowledge!!!!!

A guy on another forum ask this same question.
Said the only mark he could find was a red paint dot on the underside of the piston.

A couple of guys went back and forth with different ideas but had no real answer.
Finally after several phone call attempts the guy got in touch with some people at Tisco.

Tisco said there is no front and back.
Due to advances in machining and the fact that the piston is the same on both sides; (ie; both skirts are the same; no difference in valve clearance) a NEW piston could go in either way.
The red dot he found was only a production run mark to identify different runs.

So while I agree it goes against the old school train of thought; If they can now machine a piston to perfect tolerances; and the fact that this is a straight line block with no variables to take into account; I can understand the logic behind it. You could try calling Tisco just to be sure.

You will still want to check your side clearance all around the piston to make sure the bore is true;
Set your ring end gap;
And make sure the connecting rod is facing the correct way.

Disclaimer for others that may read this.
We are talking NEW pistons here.
Used pistons will have wear patterns and should go back the same way you took them out.

Red and blue dots were used on the backs of bearing inserts to indicate a slight difference in size of bearing used during factory assembly. You could have blue mans and red rods for example, The one used was determined by measured tolerances.
 

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