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1980 L-48 Specs

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Old Aug 29, 2004 | 12:44 AM
  #1  
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Default 1980 L-48 Specs

Does anyone have the specs for the 1980 L-48...

Mains (2 or 4 bolt)
Compression
Piston Type (flat, dome, etc)
Rods
Crank

Also... would appreciate any input on what was different (specs) between the L-48 and L-82. I'm in the process of building my original L-48 and want to learn and understand the differences.

Thanks...
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Old Aug 29, 2004 | 01:02 AM
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I don't know it all, but here is what I do know. The '80 L48 had 2 bolt mains, dished pistons with 8.5:1 compression. I believe 190 hp was stock. The L82 had 4 bolt mains, higher compression, a different cam and had 215 hp stock.
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Old Aug 29, 2004 | 06:07 AM
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http://www.corvetteactioncenter.com/...0/80specs.html

this may help a little
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Old Aug 29, 2004 | 06:54 AM
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You can also try this site. Great info year-by-year
http://100megsfree4.com/corvette/
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Old Aug 29, 2004 | 11:45 AM
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From the shop manual (I still have an extra brand new one..make you a deal)...you might have to copy and enlarge 'em, anyway, hope this helps



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Old Aug 29, 2004 | 12:15 PM
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Let's see if I can get this right...

L48: 2-bolt mains; L82: 4-bolt
Compression (guessing here): L48 -- 8.5:1; L82 -- 9:1
L48: cast crank; L82: forged crank

Pistons and rods are different, too. (We'll let an expert state the exact difference.)

The bottom line is the L82 used better internals (for what it's worth). Neither was a powerhouse during this period, but the L82 starts out as a stouter platform for building HP.
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Old Aug 30, 2004 | 07:08 PM
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Don't forget that they have some really crappy flowing cylinder heads and the exhaust system is a joke and the cam barely even opens the valves ......
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Old Aug 31, 2004 | 08:34 AM
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L-82 also had finned aluminum rocker arm covers.
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