C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

difference between lt 4 motor and lt1

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Old 06-06-2018, 01:31 PM
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corvettelover 1990
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what is the difference between lt 1 motor and an lt 4 motor
Old 06-06-2018, 01:45 PM
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ChumpVette
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Intake, heads, rockers, camshaft, crankshaft. There are some other items, but those are the highlights.
Old 06-06-2018, 01:55 PM
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mtwoolford
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every LT1 wants to grow up and be an LT4
Old 06-06-2018, 04:22 PM
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Tom400CFI
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Originally Posted by corvettelover 1990
what is the difference between lt 1 motor and an lt 4 motor
All explained in great detail, right HERE.
Old 06-06-2018, 05:41 PM
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vette196
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Eutectic aluminum/silicon alloy.....interesting. I google what it is and got this...

A hypereutectic piston is an internal combustion engine piston cast using a hypereutectic alloy–that is, a metallic alloy which has a composition beyond the eutectic point. Hypereutectic pistons are made of an aluminum alloy which has much more silicon present than is soluble in aluminum at the operating temperature

I was thinking of changing pistons and thought "forged" was overkill (no, blower, Nitros, etc...). I thought hypereutectic piston was a middle ground between stock and forged....I guess I have them....correct?
Old 06-06-2018, 09:16 PM
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Mr. Peabody
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Correct.

The engine is somewhat highly engineered from the factory within the bounds of mass production techniques of the 90's and budget constraints for a non-halo car. (non ZR-1)

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