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Originally Posted by 69FIREBIRD76MM
ICON FORGED PISTONS, Part # IC9960, Any of you guys running this forged pistons street strip, I need some feed back, I found a seller has them $340. complete set...thanks guys
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I am running the Icon premium forged pistons in my 455,great piston.One thing I did notice using the Icon premium pistons is the cold start noise vs my TRW/Speed pro's on my other car.The Icon premium piston is made from 2618 forged material and is strong and light weight with short skirt vs the TRW/Speed pro and long skirt.The 2618 material requires a greater piston to cylinder clearance for expansion.Once it reaches operating temp it is quiet.Icons website mentions this in there tech info.My car has cast Ram air exhaust manifolds and full length exhaust and factory air breather.Cars running tubular headers and exhaust exiting under car with open element air breather probably won't hear a thing even when cold.
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2001 Trans Am,WS6 Sunset Orange Metallic (sold)
1973 Trans Am 455,4speed
1970 GTO
Last edited by 73T/A; 03-01-2014 at 01:54 PM.
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