icon pistons? good, bad?
05-10-2013, 09:47 PM
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Car: 1986 firebird
Engine: 355's being built it be sweet yo!
Transmission: th400 short tail
Axle/Gears: 4.11
icon pistons? good, bad?
Im kinda on a budget and really I'm just looking for the biggest bang for my buck at the correct CR. I found icon pistons at the right price and I was wondering what the people of thirdgen thought. Any advice is well appreciated because this is my first engine build
05-11-2013, 01:55 PM
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Car: 1986 firebird
Engine: 355's being built it be sweet yo!
Transmission: th400 short tail
Axle/Gears: 4.11
Re: icon pistons? good, bad?
Mild drag. And I'm not using nitrous until I get the parts for a stroker. I'm also staying NA until then so I was looking for something with a little dome to get me too that 11:1
05-12-2013, 07:20 AM
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Re: icon pistons? good, bad?
Kevin what your buying is a mid quality piston that is alittle better than cast but not really forged. They have a feature built into them with off-set pins to limit cold piston slap. Standard ring sizes not metric which I like. Pin sizes that press fit pins is ok.
At 11.1 your way heavy for any pump gas use..............
At 11.1 your way heavy for any pump gas use..............
05-13-2013, 09:59 AM
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Car: 92 Firebird, 91 Trans Am
Engine: L31 with HSR, LB9
Transmission: 700R4, 700R4
Axle/Gears: '99 10 bolt 3.90, '01 10 bolt 3.42
Re: icon pistons? good, bad?
Kevin what your buying is a mid quality piston that is alittle better than cast but not really forged. They have a feature built into them with off-set pins to limit cold piston slap. Standard ring sizes not metric which I like. Pin sizes that press fit pins is ok.
At 11.1 your way heavy for any pump gas use..............
At 11.1 your way heavy for any pump gas use..............
05-14-2013, 01:02 PM
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11-20-2015, 09:39 AM
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Re: icon pistons? good, bad?
Although this post is over two years old ICON would like to state that ALL ICON pistons are 100% forged, both the Premium 2618 alloy and FHR 4032 alloy. The FHR that once stood for Forged Head Relief was referring to the valve pockets as they are formed in the forging die unlike the Premium series that are machined in. We now state the FHR as Formed Head Relief as to not confuse customers that only the top is forged, which of course cannot be done. The forged FHR series is an excellent choice for street performance that can be used with mild boost (15lbs) or nitrous (250hp). For more serious applications it is recommended to use the Premium 2618 alloy series.
Last edited by ICON Pistons; 11-23-2015 at 09:52 AM.
11-20-2015, 01:52 PM
#14
Re: icon pistons? good, bad?
Although is post is over two years old ICON would like to state that ALL ICON pistons are 100% forged, both the Premium 2618 alloy and FHR 4032 alloy. The FHR that once stood for Forged Head Relief was referring to the valve pockets as they are formed in the forging die unlike the Premium series that are machined in. We now state the FHR as Formed Head Relief as to not confuse customers that only the top is forged, which of course cannot be done. The forged FHR series is an excellent choice for street performance that can be used with mild boost (15lbs) or nitrous (250hp). For more serious applications it is recommended to use the Premium 2618 alloy series.
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