C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
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1978 L82 or L48

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Old Apr 2, 2010 | 07:31 PM
  #21  
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From: Graceland in a Not Correctly Restored Stingray
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Target motors were replacement engines you could buy over the counter at your local GM dealer, short or long IIRC. Don't recall them being corporate blue, but then I only ever put them in PU trucks...
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Old Apr 2, 2010 | 07:44 PM
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Originally Posted by TheSkunkWorks
Target motors were replacement engines you could buy over the counter at your local GM dealer, short or long IIRC. Don't recall them being corporate blue, but then I only ever put them in PU trucks...


All black, complete shortblock + cylinder heads. No?
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Old Apr 2, 2010 | 08:56 PM
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Originally Posted by TheSkunkWorks
Target motors were replacement engines you could buy over the counter at your local GM dealer, short or long IIRC. Don't recall them being corporate blue, but then I only ever put them in PU trucks...
They came out about the time of the switch from blue to black. I seem to think that they were blue for the first year or two.

We put one in a friends 74 Vette in March 1980. You've got me curious. I think his was blue, but now I'll have to pull out my slides of that project and see if it was.

The actual name was "Target Master" and they were a heck of a deal. Brand new 350, fitted block with 4 bolt mains, heads, pan and valve covers for a list price of around $1,000. All you needed was a carb, intake, distributor and water pump. Each motor had a foil label on the valve cover that said "Target Master 350".
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Old Apr 2, 2010 | 08:59 PM
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Originally Posted by gbvette62
They came out about the time of the switch from blue to black. I seem to think that they were blue for the first year or two.

We put one in a friends 74 Vette in March 1980. You've got me curious. I think his was blue, but now I'll have to pull out my slides of that project and see if it was.

The actual name was "Target Master" and they were a heck of a deal. Brand new 350, fitted block with 4 bolt mains, heads, pan and valve covers for a list price of around $1,000. All you needed was a carb, intake, distributor and water pump. Each motor had a foil label on the valve cover that said "Target Master 350".
Yup, but if it's anything like the GM Goodwrench 350 that replaced it, the compression ratio is probably <8:1 with a 76cc head.
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Old Apr 3, 2010 | 02:32 AM
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Originally Posted by fauxrs
the L-82 badges are indeed too far back on the hood
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Old Apr 3, 2010 | 09:06 AM
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A couple pics for reference regarding pin striping and hood emblem location.



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Old Apr 3, 2010 | 05:30 PM
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VIN - Looked from outside thru the windshield on the drivers side
1Z87L8S433582

Carb -
17058206

The intake is cast iron

It is a single snorkel

engine numbers will take more time gotta clean off the grease and locate them
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Old Apr 3, 2010 | 09:08 PM
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From: Graceland in a Not Correctly Restored Stingray
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L in the 5th location is for L48 engine.

http://www.vettesite.com/vin.asp
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Old Apr 4, 2010 | 10:17 PM
  #29  
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Originally Posted by BTAL
A couple pics for reference regarding pin striping and hood emblem location.



very good example but where is your silver on the trim around the windshield and back glass?
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Old Jul 29, 2015 | 11:47 PM
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Default L-82 tach

Originally Posted by pauldana
yes you can make a 48 beat an 82,,,, but a 48 will always have a 2 bolt main, smaller valves in the head and a smaller cam.... even if he changes out the head's and cam you still have a 2 bolt main....but many have put 500hp on a 2 bolt...

yes, the engine stamp is the best way..
btw, those wheels are not factory ether..

but again... look at the tach, if it says L-82 then it is or was at one time an l-82, otherwise, l-48.....

but that engine looks as if it will be needing the once over here very soon....
I gotta go look at mine!!....thanks
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Old Jul 30, 2015 | 12:46 AM
  #31  
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Originally Posted by Snoopysvet
What does a Target motor mean,
did they buy an engine from these guys
I believe he means "Targetmaster." That's what GM called their tame replacement crate engines which nowadays bear the "Goodwrench" name.

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Old Jul 30, 2015 | 06:46 AM
  #32  
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Almost definitely is NOT an L-82:

1. Dual Snorkel cold air intake
2. Aluminum finned valve covers..not painted
3. Aluminum L-82 intake...not painted
4. L-82 hood emblems should be about 6 inches further down the hood
5. "L-82" on the tach
6. 5,600 RPM (AC cars)/6,000 RPM redline (non AC cars) for the L-82. 5,200 RPM redline on taco for the L-48.
7. *Defining fact...5th digit of the VIN MUST be a "4" for the L-82* to be installed from the factory.
8. L-82 has forged 8.9:1 pistons (Cast for the L-48), forged connecting rods (Cast L-48), forged crank (cast for the L48)
9. 2.5 inch Y pipe exhaust for the L-82 versus 2 1/4 inch Y pipe for the L-48
10. 882 big valve heads with 2.02/1.60 valves versus smaller valves on the L-48
11.L-82 cam has .450/.460 lift, 114 LSA/222 duration versus much less lift/duration on the L-48 cam (passenger car cam)
12. L-82 engine is pretty much the same motor as the 330 Gross HP LT-1 motor (1971 9:1 compression).
13 4 bolt mains L-82 versus 2 bolt mains for the L-48.

There are big differences between the L-82 and the L-48...both can make good power when modded but the L-82 is MUCH stronger and easier to make more power. The L-82 can make 40-50 HP with just headers and exhaust. The L-48 will require exhaust, heads and cam to make the same power gains.

Any Gen 1 V8 can make 400 Gross HP with fairly basic mods.
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Old Jul 30, 2015 | 08:24 AM
  #33  
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Originally Posted by Flavored
...I gotta go look at mine..
Originally Posted by SI67
...I believe he means "Targetmaster."...
Originally Posted by jb78L-82
...Almost definitely is NOT an L-82...
This thread is from 2010.
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