LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Do I need a forged 355 or 383 rotating assembly?

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Old 11-02-2006, 08:58 AM
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Do I need a forged 355 or 383 rotating assembly?

New in this department and doing an engine refresh.

I will never have a power adder like juice, blower etc so do i really need an all forged rotating assembly. I want durability on the street when I am hammering on it plus I rarely go to the strip.

Will a cheaper non-forged RA be acceptable? What vendors do you guys like?
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Old 11-02-2006, 09:04 AM
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Go with forged pistons/rods at least, but you can stick with the stock GM crank.

That's what I'm running.
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Old 11-02-2006, 09:29 AM
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Originally Posted by Javier97Z28
Go with forged pistons/rods at least, but you can stick with the stock GM crank.

That's what I'm running.
That's what I would do in your situation. Just go with ARP bolts or studs on the main caps.
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Old 11-02-2006, 12:32 PM
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What about if I go 383?
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Old 11-02-2006, 12:36 PM
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Without a power adder you can survive with a cast steel crank, stock PM rods and a set of hypereutectic pistons, as long as you keep it at 500 flywheel HP or below. Not a popular solution, but its cheap and it works.
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