hypereutectic vs forged pistons - Hot Rod Forum : Hotrodders Bulletin Board
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Old 10-03-2003, 10:09 PM
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hypereutectic vs forged pistons

Hi guys:
Im building a 350 chevy for my 55 chevy pu. Im building the engine a little wild with a fairly wild cam(246 deg @ .050/.500 lift), 2.02 double bump heads and flat top pistons (probably 10 or 10.5 to 1 comp).This engine might never be run on the strip but might later be run on no2. In the old days of my youth(Im 47),I would have picked forged pistons. Today I have a choice between hypereutectic and forged. I can save about $150 on them over forged. Any opinions on which I should choose?

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Old 10-03-2003, 10:16 PM
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If you think you will use a 150 Hp or less plate type nitrous setup I would get the hypereutectics. Anything more and I would get the forged. The hypereutectics will last a lot longer under normal usage.
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Old 10-03-2003, 10:42 PM
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Run the NO2 and you`ll get to see what a piston pin looks like after its ripped out of a piston... I dont care what anyone says about hypereutectics... Its still a cast piston and just does not have the strength of a forged piston...

Also with that cam and setup what is "normal usage"...? If you`ve got it then your going to use it... And $150 is cheap insurance against a scatter job...

Leave the cast slugs for the grandmaw cruisers and put the forged bullets in the rocket ships...
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Old 10-04-2003, 12:41 AM
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Just spend a little extra and get the forged.
Well worth the extra $.
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Old 10-04-2003, 03:58 AM
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Old thread.
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Old 10-04-2003, 02:47 PM
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It sounds like you mostly looking to build a good street engine so I'd go with the hypereutectics your bore wear will me much better than if you use the forged. Sure if your building a race engine go with forged but in that case your looking for shear strenth as apposed to wear characteristics. Just don't go with to big a shot of no2 and make sure you don't get into detonation territory and you will be very happy with them.
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