Was wondering are zr1 pistons different from the ls3 pistons? And if so can zr1 pistons handle 25psi? Also has anyone bought zr1 pistons? Can you even buy them?

 

dont know about pin height or anything

LS3 piston

ZR1 piston

 

LS3 pistons are hypereutectic flat tops
LS9 pistons are forged and dished as shown in the picture above

To the best of my knowledge, nobody has put that much boost to an LS9 yet. So far about 18psi I think is the max.

 

Thanks for the info.What about buying a set?Just curious to see how much they would cost if you could be them.

 

well lets get too it katech, Just jokin. the ls9 pistons remind me of the old detroit deisle pistons.

 

I was just curios about them to see what kind of power they can handle.

 

We don't sell them. Try Scoggin Dickey.

 

We can get them yes. We are unsure at this time as to what the rod length is so that we can give you an accurate rod length and CH. I will get BOTH the LSA and LS9 pistons and rods in so that I can take a look and document them. The LS9 is a titanium, the LSA is supposed to be Powdered metal. We will take a look. Ill keep this thread updated.

 

Is the rod the same as the LS7 rod???

 

IIRC they are 4032 alloy (from GM doc). So probably similar to any 4032 piston. Though it would be interesting to know how thick the crown is and whether the dome area profile is reflected on the backside, or they have made the centre really thick. Considering thats where long term detonation seems to drill holes.

 

No. Not the same pn.

 

Sweet thanks.

 

No, LS7 rods are made by Mahle. LS9 rods are made by Pankl.

 

https://ls1tech.com/forums/generatio...l#post12936488

check it out. all the info you could want. pics up soon