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Old 08-30-2022   #5
WARP TEN
 
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Join Date: Apr 2007
Location: Lake Bluff, IL
Posts: 2,141
Default Re: Prototype Piston Award Signatures?

A great find Steve! And thank you Graham, for your explanation. I have a piston from a '93 engine and I had honestly never noticed the little steel inserts until today after Steve mentioned it and I noticed just a bit of rust that has formed on the steel (after sitting on my deck for probably 20 years). A great bit of ZR-1 trivia. But I am curious: do other aluminum pistons commonly have such steel strips to adress thermal expansion or is it just the LT5s? --Bob
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