As title says, who makes cast pistons for the LSx engines?
I have searched and not found any info.

I would like to use cast pistons in my would be stroker to be able to run thighter (stock) piston to bore clearance.


Br//

 

As far as I know nobody makes them as I was in the same boat as you and ended up buying mahle forged pistons for my build.

 

Speed pro makes hypereutectic LS1 pistons in stock bore.

 

Ok thanks, but that was bad news.

I might have to use plan B, using stock L92 pistons in a tall deck LSX block.
That will for sure take care of all issues with piston knock and/or oil consumption.
I havenīt done the math to know where I end up CID wise, but a short rod stroker in a tall deck block should make it possible to use stock pistons I belive.
The short rod will also enhance the low Rpm Tq potencial.

Before you 1/4 mile guys ignite your flame throwers, please take in the fact that I am building a truck engine for towing. I donīt care about max Hp, I want Max Tq at 1200 to 2500 rpm, and stock NVH and oil consumption.

This is what I am aiming at but in a Lsx package:

http://media.gm.com/us/powertrain/en...L18_Sierra.pdf

Br//