Where can I buy a set of used or new stock f20c pistons for my 2001 s2k?

 

dealer.

 

Yes but they will total over $850 with rings. Forged aftermarket pistons cost less. Any other ideas?

 

if you have to replace the piston i would just go with aftermarket.

 

Best bet would be The Mahle piston set that science of speed has. They are FRM compatible. You could get your block sleeved and used forged pistons.

This cylinder liner is not compatible with traditional aftermarket piston material and coatings.

Mahle Motorsports manufactures forged pistons using a proprietary skirt coating that is compatible with the FRM cylinder liner. These pistons are available in lowered compressions ideal for forced induction applications over 400 whp. Many customers have elected to lower compression with thicker head gaskets only to find that this changes the combustion efficiency. These flat top pistons keep the piston crown height in the ideal location. These forged pistons are approximately 50 grams lighter than a factory piston - weight has been reduced not only in decrease of dome volume but also through pockets in the forging.

Yes, I copied and pasted 90% of that.

http://scienceofspeed.com/products/e...Mahle/pistons/

 

I have some pistons from an AP1 motor, PM if you interested. I can get pics.

 

^ interested and p/m'd. I have not heard of one motor running mahle gold pistons in a frm block that made it over 30,000 miles.