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Is the L48 a good engine? Comments please...

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Old 10-05-2005, 09:28 AM
  #21  
ruby76
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Originally Posted by rihwoods
Interesting...mine is a Borg Warner Super T-10 in my 78....thought the Saginaws went in the 79's....
Rich
Mines a 76, BW Super T10, tranny came from a 75 Vette.
Old 10-05-2005, 12:50 PM
  #22  
NHvette
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Originally Posted by page62
The small-block Chevy 350 is the most upgradeable and easily modified engine out there. Don't worry about stock performance...this is the place to come learn about how you can put some fire in that engine.

Have an knowledgeable person look at the car. You should be more worried about rust in certain key areas than the stock engine performance. It's easy to upgrade the engine, hard to fix rust...
This is the best advice here. The drivetrain is upgradable.
A rusted frame or birdcage (body frame) is not.
Sounds like a fair price for a running 76.
Old 10-05-2005, 01:04 PM
  #23  
Scottys78
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I wish mine was a big block
Old 10-05-2005, 01:27 PM
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ThereIsNoSpoon
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Originally Posted by page62
The small-block Chevy 350 is the most upgradeable and easily modified engine out there. Don't worry about stock performance...this is the place to come learn about how you can put some fire in that engine.

Have an knowledgeable person look at the car. You should be more worried about rust in certain key areas than the stock engine performance. It's easy to upgrade the engine, hard to fix rust...
Welcome to the forum
Old 10-06-2005, 09:38 PM
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sundance1
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This was a re-assuring post on th L48.
I am about to acquire a 72 convert with an original base model engine.

Is this the same engine as the L48 and if yes would it be tuned the same way the 76s were tuned with all the smog controls etc....

thx
Old 10-06-2005, 10:34 PM
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carl a
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this is the orgional l-48 that came with my 73 ,,(heads were opened to 2.02 and block stroked) now its a 383 motor------------------------
Old 10-06-2005, 10:43 PM
  #27  
TexasMadMan
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Sundance:

I believe the base '72 L48 had 200HP while the '76 version had 180hp.
Old 10-06-2005, 11:20 PM
  #28  
ETM
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I think the L48 is a good reliable Chevy engine.It can be tweaked to run faster pretty easily.I think sometimes people get to caught up in the L48-L82 thing.There`s so many other things to consider when buying a Vette of this vintage.
Old 10-06-2005, 11:49 PM
  #29  
lucky76
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Get some loud mufflers and drive it around like you have 500 hp under the hood. When that little Honda wants to race at the light, let him go, and just ease off. He can't say he beat you cause you didn't race him. The fool just took off in his Honda!

Last edited by lucky76; 10-06-2005 at 11:52 PM.
Old 10-07-2005, 11:51 AM
  #30  
Buzzardz_vette
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My 76 was stock when I got it. Top rebuild with upgraded carb, cam, intake manifold, and big valves. She will fly now when you hit the gas! The L48 is very easy to work on. I just can't do body work, so follow the advice here about checking it out for rust.
Old 10-07-2005, 12:34 PM
  #31  
Entropy
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Originally Posted by TexasMadMan
Sundance:

I believe the base '72 L48 had 200HP while the '76 version had 180hp.
I should know, I own one. But since my rebuild this spring, 200hp is now a bad memory.

trw
Old 10-07-2005, 12:38 PM
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Originally Posted by TonySinclair
Many V6's will beat you, but driving a Honda is humiliating.
For a heathen, Tony isn't half bad!
Old 10-07-2005, 01:05 PM
  #33  
the73vetteman
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Originally Posted by Maggs
When it redlines in 4th, do you have the feeling there should be another gear??
I grew up driving stick shifts in Europe and I still believe that 'real men drive manuals'. That said, there are times when I'm moving up through the gears and I do try to slip her into 5th.

Old habits die hard I guess.
Old 08-08-2010, 09:42 AM
  #34  
Bri-Guy
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Default 1975 C3 Manual Car

Hey Guys, New to the forum here. About 2 weeks ago I picked up a 75 vette with a 4 spd. manual. The car came with a complete new Al Knoch interior and only has 37k original miles. I was reading online and saw that there were only a little over 1000 manuals made out of 34 thousand units. Is this true? The car is all matching #'s and the best part is that it was only $1500.

Can anyone give me a few good ideas as to what to bolt on under the hood? I want to keep the original engine but want to get some more HP. I figure carb, intake cam etc. Any pointers? Any feedback would be greatly appreciated. Thanks!
Old 08-08-2010, 09:54 AM
  #35  
Mike Ward
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Originally Posted by Bri-Guy
Hey Guys, New to the forum here. About 2 weeks ago I picked up a 75 vette with a 4 spd. manual. The car came with a complete new Al Knoch interior and only has 37k original miles. I was reading online and saw that there were only a little over 1000 manuals made out of 34 thousand units. Is this true? The car is all matching #'s and the best part is that it was only $1500.

Can anyone give me a few good ideas as to what to bolt on under the hood? I want to keep the original engine but want to get some more HP. I figure carb, intake cam etc. Any pointers? Any feedback would be greatly appreciated. Thanks!
There were 10,000 '75s built with manual transmission, not 1,000. Do a search for engine upgrades (like you've already done to dig up this thread) and read, read, read. Carb will get you nothing, cam and heads is where the ponies are at.
Old 08-08-2010, 12:21 PM
  #36  
Bri-Guy
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Hey Mike, Here is a wesite that gave me the production figures for 75'.
http://www.idavette.net/facts/75.htm
Old 08-08-2010, 12:29 PM
  #37  
SteveG75
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Originally Posted by Bri-Guy
Hey Mike, Here is a wesite that gave me the production figures for 75'.
http://www.idavette.net/facts/75.htm
There were two 4 speed manuals available in 1975. 1,057 cars had the optional closre ratio 4 speed. The majority of manual cars (8,935 cars) had the standard wide ratio 4 speed. Notice the site only list the optional engine, not the base L-48.

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Old 08-08-2010, 12:39 PM
  #38  
Mike Ward
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Originally Posted by Bri-Guy
Hey Mike, Here is a wesite that gave me the production figures for 75'.
http://www.idavette.net/facts/75.htm

Total production= 37887
cars with auto trans= 28473
remainder had a manual trans, either M20 or M21
Old 08-08-2010, 02:29 PM
  #39  
Faster Rat
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Originally Posted by Maggs
The 4 speed just strikes me as strange. At what speed does it redline in 4th gear? When it redlines in 4th, do you have the feeling there should be another gear??
In 1976, the 180 hp L48 with a 4 speed had 3.08 or 3.36 axle ratios available. I don't think there is enough hp to redline the engine in 4th gear with either ratio. Somebody will correct me if I am wrong. I am sure I can do it with my car (over 400 hp) and 3.36 gears, but I would probably be doing around 135 mph at 5600 rpm. I don't have the stones to drive my 41 year old car that fast, let alone shift into overdrive and go for more.
Old 08-08-2010, 02:37 PM
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Rmorgan&11
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Bought my '76 4sp. / 3:36 gears , for $8500 w/ 45k miles...... then spent almost another 1k to ship from Pennsylvannia to my doorstep in S. Texas.
180hp is not going to set any acceleration records ...but as others advise ..350sbc upgrades are easily done with a little $$$$
(cheapest way would be drop in a set of 5:88 cogs ) but you would be in 4th at the end of the block ..LOL
and yea I like the cool factor you get when "puttin' thru town

Last edited by Rmorgan&11; 08-08-2010 at 02:40 PM.


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