The Power Pak pistons are predominately made from 4032 aluminum alloy to allow for tighter cylinder to wall clearances, and improved temperature stability. Rated for 450hp and can handle up to 25lbs of boost
Phosphate coating provides the grey appearance to the PRO SERIES PISTON. This dry lubricant coating (not to be confused with a thermal film coating) provides a lubricant film in the pin bores and ring grooves until the oiling system of the engine reaches operating pressure; particularly useful during the initial start-up or break-in of engines to protect against galling and microwelding. The piston crown is still machineable.
NOTE: Price is for piston kit only, rods not included.
Posted by CescoBaby on 9th Aug 2015
Items were shipped on the same day of purchased. Best part was they are drop in pistons OEM specs so no need to bore out the cylinders and the price was the lowest I could find. So far car runs very smooth and I have some peace of mind knowing the engine will handle what ever my GTX2867r will throw at it. Thanks Pablo.