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Some 5.5 liter V-8 details

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Old 02-27-2010, 08:33 AM
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I Bin Therbefor
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Default Some 5.5 liter V-8 details

"We'll be racing two factory-backed C6.Rs powered by a reduced displacement version of Chevrolet's latest LS7 V-8. The block comes right off the assembly line, but we've destroked and sleeved it from 7.0 liters to 5.5 lliters. . ."

Doug Fehan in April's Road and Track.

Last edited by I Bin Therbefor; 02-27-2010 at 08:37 AM.
Old 03-02-2010, 12:48 PM
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The Highlander
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Does it maintain the 4.125 bore?

It would be easy to go back to the 427 if the bore was kept the same.
Old 03-02-2010, 04:44 PM
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My guess would be no since its resleeved.
Old 03-02-2010, 05:14 PM
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SCM_Crash
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I wonder what heads they were using then. The L92 heads have to go on a 4.0 bore from what I understand. Maybe a new head casting?

Unless it's a 4.0 bore with a significant destroke.
Old 03-02-2010, 06:18 PM
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I Bin Therbefor
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Default Funny You should ask

Originally Posted by highlanderc
Does it maintain the 4.125 bore?

It would be easy to go back to the 427 if the bore was kept the same.
In comparing the two engines, Corvette Racing site gives these numbers.

Bore diameter (in) 4.180 Same

Crankshaft stroke (in) 3.875 3.32 (-0.555)

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