do you know what the ring gaps are supposed to be for a ls2 4 inch bore it is stock pistons and rings but i also want to spray a 150 shot any help is appreciated

 

anyone

 

Mine are gapped at 6 thousanths per inch of bore.

 

Mine are .028 top, and .021 2nd, however, my shot will be around 300.
Robert

 

Recommended by Diamond for my application. 4" bore with plans of 200 shot.

0.024" Top
0.026" 2nd

 

How do the ring gaps work??? the higher the # the looser the gap, or vice versa???

 

Thats correct think about it like a spark plug gap.

 

cool, thanks... so what does the top and 2nd ring gaps do... in regards to nitrous??

 

You need to make them a little larger so as the huge amounts of heat are applied to them while under nitrous load they ring ends do not come in contact with eachother. Also known as "butting" the rings and a major cause of broken ringlands. One of the comon failures associated with Nitrous usage

 

So how do u know if youre gap is to loose or to tight for a given nitrous hit??

lets say....
top-.028
2nd-.025

as apposed to robert56's
top-.028
2nd-.021

given each's ring gaps, what size nitrous hit would u use on those ring gaps??

 

what is the stock ring gap for a ls2

 

For nitrous engines you want the 2nd ring gap larger than the top such as 24 top and 26 bottom....etc.

 

Thats how I always understood it. On a 3.9 bore ive always used .024 and .028 for nitrous motors.

 

It also depends on what size shot they plan on running. The larger the shot...the more you want to gap them.

 

does anyone know the stock ls2
ring gap

 

tight

 

I'd go out and measure but I'm way tooooo lazzyyy today and if I see my car I'll have to work on it.