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Discussion Starter #1
Wiseco Small block chevy forged pistons I bought have no ring gap instructions. Gives a .004 minimum per overbore. I cant find anything else....what the hell?

I checked one on my 4.040 and its .0016 top ring.

This is a NA application.

Thoughts?

General rule of thumb?
 

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Discussion Starter #6
I called them today Chris, they advised .20/.22 so thats what I did.

The eyebrows on these pistons are the same size, is that common on a reverse dome piston?

The eyebrows look like this, they are the same size on both sides. So it doesnt matter on orientation as long as my bearing tang is to the pan rail?

 

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N/A we suggest .0045 per inch of bore dia.

Open second up .005 - .010 larger.
 

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Discussion Starter #12
wiseco does not make rings.

they sell many different combinations of various rings from many makers.

Wiseco box, 4 pistons on each side with rings packaged in the middle. So the Wiseco Pro True pistons I bought....came with rings.
 

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Discussion Starter #14
There was no box, they were in bubble rap and individual packages. The oil rail support had a Wiesco part#

I already gapped the ring s per Wiseco's specs i called them
 
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