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Bobboloo Bobboloo is offline
Warren Hall Student
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Join Date: Aug 2000
Location: Los Angeles Ca.USA
Posts: 3,959
Per the factory manual...

Installation Instructions For "LS" Cylinders and Pistons.

"The Alusil cylinder (eutectic aluminum- silicon alloy) and the Ferrocoat piston combination is known as "LS" cylinders and Pistons.
In this system the surface coating is applied to the piston."

"The assembly of the cylinder and piston must be made with particular care to avoid breaking the piston rings; the rings are chrome plated and are thus harder and more brittle."

As stated above. The rings and the piston are the "hard items" in a LS set and the cylinder is the "soft" item so when break in occurs the cylinder is the item that gives. If you are "refreshing" the motor then the item to "refresh" would be the cylinder not the piston and rings. Not that anyone would do that because you'd probably just replace the whole set.

Warren Hall 1950 - 2008
Old 11-27-2003, 05:07 PM
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