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Ls1 Cui

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Old Sep 11, 2005 | 08:52 PM
  #1  
apg96's Avatar
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From: So Cal
Ls1 Cui

Whats the CUI for a stock LS1?
Old Sep 11, 2005 | 08:57 PM
  #2  
teke184's Avatar
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From: US 1 Mile Marker 52 in the Florida Keys
Re: Ls1 Cui

you mean cubic inch?

346....

not sure of the bore/stroke...but its in mm not inches
Old Sep 12, 2005 | 03:56 PM
  #3  
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From: Oshawa - Home of the 5th-gen
Re: Ls1 Cui

It's something like 3.898" bore X 3.625" stroke, but whatever it is, it comes out to ~346 cubic inches. It still converts to 5.7L same as a true "350" Chevy, and I think GM wanted people to still think of it as a 350 (or 5.7L).

The 6.0L engines are a 4.0" bore, same as a 350 small-block, but with the longer stroke (3.62 > 3.48) then they're actually like a "stroker" compared to a 350!
Old Sep 12, 2005 | 06:09 PM
  #4  
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From: FTW, TX
Re: Ls1 Cui

~1.5 Gal

I say 346 but some say 347.
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