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

lt1 race block?

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Old May 20, 2003 | 10:08 AM
  #1  
RedyGo's Avatar
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From: MIssissauga Ontario
Default lt1 race block?

tpis told me they built an lt1 with a 4.1" bore, using a gm race block. does anybody know anything about this block?
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Old May 20, 2003 | 11:00 AM
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Default Re: lt1 race block? (RedyGo)

I do not know all of the details, but have also heard of this being done by some racers. Check with Trevor at "Exotic Muscle" in Tempe AZ..... I think he has done this if not he is very up on what every one is doing and why.
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Old May 20, 2003 | 11:32 AM
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Default Re: lt1 race block? (RedyGo)

I've heard of these blocks, but from what I've been told they are virtually impossible to find. I know of one right now, but there is no way you can get it from the guy that owns it for good reasons on his part.
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Old May 20, 2003 | 11:57 AM
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Default Re: lt1 race block? (RedyGo)

Looks like that would only give you 409 cubic inches with a 3.875 stroke crank. $$$$$$$$$ :steering:
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Old May 20, 2003 | 12:05 PM
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Default Re: lt1 race block? (RedyGo)

How different are the different generation blocks?

Given the number of LT1s out there, I would think there would be a significant market for a big bore second generation small block.
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Old May 20, 2003 | 10:41 PM
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Default Re: lt1 race block? (rcdk)

How different are the different generation blocks?

Given the number of LT1s out there, I would think there would be a significant market for a big bore second generation small block.
The LT1 is a seriously different... The Gen 1 heads will not fit on the Gen II block... the flow of the coolant is reversed... the ignition, technially, is different, but the engine will support a conventional distributor.
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