C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

Rebuild the L83?

Thread Tools
 
Search this Thread
 
Old Jun 1, 2007 | 07:27 PM
  #1  
Chucks82's Avatar
Chucks82
Thread Starter
Intermediate
 
Joined: Jun 2004
Posts: 26
Likes: 0
From: Palm Bay Fl
Default Rebuild the L83?

I know the heads are crap and am going to retire the crossfire but
what about the shortblock? or block? Hate to chunk it as its numbers
matching and rebuild with afr's and maybe rotating mass if its worth it.
Was thinking of 383.

Is it worth it?

Thanks, Chuck
Reply
Old Jun 1, 2007 | 07:56 PM
  #2  
Kalway's Avatar
Kalway
Safety Car
 
Joined: Dec 2004
Posts: 4,071
Likes: 0
From: San Diego CA
Default

It's your basic chevy small block. Don't see any reason you couldn't use it as a starting point.

I think it's only a two bolt main, though. Should be able to handle up to 500hp fine, though.
Reply
Old Jun 1, 2007 | 08:40 PM
  #3  
Glensgages's Avatar
Glensgages
Race Director
20 Year Member
All Eyes On Me
Liked
Top Answer: 1
 
Joined: Jan 2003
Posts: 15,175
Likes: 86
From: State of Confusion
Default

I'll be turning my '82 into a bracket-racer when my house up-North is finally sold, with the original intention of buying a ZZ383 crate-motor for motivation:
since discussing my modest goals further w/ Tracy Lewis of RevXtreme in Tampa, I believe I'll be tossing the Cross-Fire set-up into the Gulf of Mexico, and using the 27,000-mile short-block as-is, adding aluminum heads, intake, carb, cam, headers, etc., with expectations of running high-to-mid 12s, while keeping the RPM below 6000.
Reply
Old Jun 2, 2007 | 08:20 AM
  #4  
Chucks82's Avatar
Chucks82
Thread Starter
Intermediate
 
Joined: Jun 2004
Posts: 26
Likes: 0
From: Palm Bay Fl
Default

Thanks guys,

Glensgages, That's just about what I had planned too. Although mine
has 80,000+ and won't pass a compression test on 6 cylinders

Chuck
Reply
Old Jun 2, 2007 | 10:15 AM
  #5  
stingr69's Avatar
stingr69
Le Mans Master
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2004
Posts: 7,477
Likes: 1,495
From: Little Rock AR
Default

Originally Posted by Chucks82
Thanks guys,

Glensgages, That's just about what I had planned too. Although mine
has 80,000+ and won't pass a compression test on 6 cylinders

Chuck

The tipping point is the bores. If the bores are good I would save the bottom end. It makes a lot more sense to build the stroker if the bores need to be redone. Once you hit that point, the cost goes up a lot but the difference between building the bored 350 vs the 383 stroker is minimal. At that point the difference between stroker pistons and regular 350 oversized pistons is pretty small. The money spent on the stroker crank is money you probably would have spent to grind/polish the 350 crank. You get a lot more torque for about the same cost so why not?

Bottom line: once you poke it - it's time to stroke it.
Reply
Old Jun 2, 2007 | 10:33 AM
  #6  
Glensgages's Avatar
Glensgages
Race Director
20 Year Member
All Eyes On Me
Liked
Top Answer: 1
 
Joined: Jan 2003
Posts: 15,175
Likes: 86
From: State of Confusion
Default

..... with the L-83 based-on a 2-bolt main-cap block, if you DO decide to put an arm in it, it'd be a good candidate for adding splayed outer-bolts, making the bottom-end damn-near bullet-proof.
Reply

Get notified of new replies

To Rebuild the L83?





All times are GMT -4. The time now is 02:22 PM.

story-0
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-1
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-2
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-3
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-4
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-5
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-6
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-7
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-8
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-9
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE