ARGALI Trail Leader Posts: 244 Joined: Oct 09, 2009 Logged My 1988 Zuk needs an engine rebuild. My Samurai blew a Piston and my mechanic told me that the previous owner rebuilt the Motor with .50 Pistons that don'y have enough clearance for the Motor. I am into Hi-Perormance and the Zuk has MSD Blaster 2 Hi-Vibration Coil, Centreforce Clutch, Weber Carb etc. The Mechanic thinks I should put stock OEM Standard Pistons back in it instead of .20 or .40.I want higher horsepower though and am wanting to know what is the Best Rebuild Kit I can get. I don't care about price, I want this Zuk to rock. I don't want to move to a 1.6 or Engine Swap. I have been looking at the Petroworks and Low Range Rebuild Kits with Flat Top Hi-Compression Pistons. #1 What is the Best Size of Pistons or a Samurai that will last? Standard, .20 or .40?#2 Do the Flat Top Hi-Compression Pistons make a difference?#3 Petroworks or Low Range or Another Company?Any and all advice and experiences with this would be greatly appreciated. Thanks and keep on Zukin'!