Long conrod, short piston kit for modified GX390 engines.
4.510'' Billet Conrod (+.100'')
Short Skirt Flat Top Piston
1.2mm Ring Set
This is a 'drop in' piston kit for the GX390 engines which produces a approximately 0'' Deck height but benefits from a long conrod which reduces piston speed and improves reliability, a lightweight piston which reduces the rotating assembly weight and increases power and the flat top piston with a 0 deck height which greatly increases compression.
An excellent, easy to use kit.