non original engines - CorvetteForum - Chevrolet Corvette Forum Discussion


C3 General
General C3 Corvette Discussion not covered in Tech
Sponsored by:
Sponsored by:

non original engines

Reply
 
 
 
Thread Tools Search this Thread
Old 01-11-2018, 12:20 PM   #1
scondon
Junior Member
Thread Starter
 
scondon's Avatar
 
Member Since: Sep 2012
Location: Blue ridge Georgia
Posts: 35
Thanks: 0
Thanked 1 Time in 1 Post
Default non original engines

well I have a odd question, why is it that most all of the c3 vettes I look at do not have the original engine in it including my two. if something goes wrong with the engine why not fix it and leave it with the car. is it not better to have the original engine with the car then to put something else in its place. both my 73 and 75 have 350's in them but not the original engine. I don't get it.
scondon is offline   Reply With Quote
Old 01-11-2018, 12:25 PM   #2
TimAT
CF Senior Member
 
TimAT's Avatar
 
Member Since: Oct 2006
Location: Gladstone MO
Posts: 6,236
Thanked 180 Times in 177 Posts
Default

The original engine in my 69, 427/435 L-89, spun a main bearing in 1971. Next engine broke the cam between the 3 and 4 bearings about 2500 RPM, saved the rocker covers on that one. Engine #3, crate LS-7 454-460, pulled it after the cam went flat, couldn't afford the 110 octane fuel to make it happy anyway. Now it's a 496 that is happy on pump gas.
TimAT is online now   Reply With Quote
Old 01-11-2018, 12:29 PM   #3
scondon
Junior Member
Thread Starter
 
scondon's Avatar
 
Member Since: Sep 2012
Location: Blue ridge Georgia
Posts: 35
Thanks: 0
Thanked 1 Time in 1 Post
Default

Quote:
Originally Posted by TimAT View Post
The original engine in my 69, 427/435 L-89, spun a main bearing in 1971. Next engine broke the cam between the 3 and 4 bearings about 2500 RPM, saved the rocker covers on that one. Engine #3, crate LS-7 454-460, pulled it after the cam went flat, couldn't afford the 110 octane fuel to make it happy anyway. Now it's a 496 that is happy on pump gas.
yeah I have my 75 coupe with L82 hood badges but its not an L82 so now I am looking into how to put it back to an L82 to match the hood badge in case I want to sell it.
scondon is offline   Reply With Quote
Old 01-11-2018, 12:31 PM   #4
Easy Mike
CF Senior Member
Support Corvetteforum!
Cruise-In II Veteran
 
Easy Mike's Avatar
 
Member Since: Jun 2000
Location: The Bluegrass State
Posts: 35,089
Thanks: 0
Thanked 609 Times in 559 Posts
Default

Quote:
Originally Posted by scondon View Post
...I don't get it...
Swapping an engine would have been a personal choice for a previous owner.
Easy Mike is online now   Reply With Quote
Old 01-11-2018, 12:45 PM   #5
Go Vette Go
CF Senior Member
Support Corvetteforum!
St. Jude Donor '10-'11, '15
 
Go Vette Go's Avatar
 
Member Since: Dec 2000
Location: Lansdale 19446 PA
Posts: 2,427
Thanked 44 Times in 41 Posts
Default

Back "in the day", we had no idea of how the values of these cars would grow!! "Numbers matching" had no meaning - didn't hear that term until after I got my first Corvette.

We would change parts, including engines, like you'd change underwear!! Someone had a more powerful engine available for sale of trade - we did it!! I had a new 66 Impala with a 283 that didn't stay stock long!

It was just the way things were back "in the day"!!!
Go Vette Go is offline   Reply With Quote
The Following 4 Users Say Thank You to Go Vette Go For This Useful Post:
marshal135 (01-12-2018), PainfullySlow (01-11-2018), Primo┼ż Krajcar (01-14-2018), Yankeededandy (01-13-2018)
Old 01-11-2018, 12:46 PM   #6
ENCSDOUG
CF Senior Member
 
ENCSDOUG's Avatar
 
Member Since: Aug 2013
Location: Fayetteville NC
Posts: 282
Thanked 39 Times in 39 Posts
Default

In the early days it was cheaper to swap an engine verses rebuilding. Also, if you owned a C-3 during those times, do think we would considered someone 40 some years later would want it original? How many C-6 owners have swapped their motor for more HP? I know of a couple. Do you think they're worried about numbers matching for someone who may own it 40 years later?
ENCSDOUG is offline   Reply With Quote
The Following User Says Thank You to ENCSDOUG For This Useful Post:
20mercury (01-13-2018)
Old 01-11-2018, 12:48 PM   #7
Dynra Rockets
CF Senior Member
 
Member Since: Oct 2012
Posts: 657
Thanked 112 Times in 103 Posts
Default

Remember that for a very long time most C3s were unloved used cars. For most people it came down to economics, if it was cheaper to put a running engine in from another car then that's what they did.

My '69 has a CE engine in it dated 1969. I'm sure the original owner was thrilled to get a new engine for it for free under warranty back then.

Last edited by Dynra Rockets; 01-11-2018 at 12:49 PM.
Dynra Rockets is online now   Reply With Quote
Old 01-11-2018, 02:18 PM   #8
ballen06
CF Senior Member
 
Member Since: Nov 2004
Location: Palm Bay Florida
Posts: 472
Thanked 22 Times in 21 Posts
Default

Quote:
Originally Posted by scondon View Post
well I have a odd question, why is it that most all of the c3 vettes I look at do not have the original engine in it including my two. if something goes wrong with the engine why not fix it and leave it with the car. is it not better to have the original engine with the car then to put something else in its place. both my 73 and 75 have 350's in them but not the original engine. I don't get it.
Not a whole lot of choices when you have a cracked block.
ballen06 is offline   Reply With Quote
Old 01-11-2018, 02:25 PM   #9
calwldlife
CF Senior Member
 
calwldlife's Avatar
 
Member Since: Jan 2007
Location: Southern Cal Ca
Posts: 37,781
Thanked 9 Times in 9 Posts
Default

looks like most of the points have been covered.
i don't know what percentage of owners were capable of working on their cars but
i have a feeling it was a small number.

so that leaves shops that did the work and
made financial choices based on getting it running quickly.
calwldlife is offline   Reply With Quote
Old 01-11-2018, 02:28 PM   #10
BBCorv70
CF Senior Member
 
Member Since: Apr 2007
Location: Tolland CT
Posts: 2,751
Thanked 25 Times in 25 Posts
Default

It wasn't uncommon to swap the engine back in the day when it either blew up or the owner wanted an upgrade. These cars were not collectible, just another used car.

For that reason, true originals are more coveted today, especially the higher performance versions, since they are thought to be more rare.

Now most people who own C3s with original engines will not discard the original. A true original adds value.
BBCorv70 is offline   Reply With Quote
Old 01-11-2018, 03:21 PM   #11
ronarndt
CF Senior Member
Support Corvetteforum!
 
ronarndt's Avatar
 
Member Since: Jul 2015
Location: Catlett VA
Posts: 1,049
Thanked 83 Times in 74 Posts
Default

Quote:
Originally Posted by BBCorv70 View Post
It wasn't uncommon to swap the engine back in the day when it either blew up or the owner wanted an upgrade.
Agree. I had a 66 Mustang 2+2 fastback in 1971 when they were not considered collectables. When the engine went bad, I went to a junk yard and got a running 289 motor and installed it in my car. In 1989 I sold the car, just as they were starting to gain value. Fortunately I had kept the original motor and that added about $1k to the asking price. Wish I had that car today.
ronarndt is offline   Reply With Quote
Old 01-11-2018, 03:43 PM   #12
mrvette
CF Senior Member
 
mrvette's Avatar
 
Member Since: Jul 1999
Location: Orange Park Florida
Posts: 59,884
Thanked 86 Times in 84 Posts
Default

Quote:
Originally Posted by BBCorv70 View Post
It wasn't uncommon to swap the engine back in the day when it either blew up or the owner wanted an upgrade. These cars were not collectible, just another used car.

For that reason, true originals are more coveted today, especially the higher performance versions, since they are thought to be more rare.

Now most people who own C3s with original engines will not discard the original. A true original adds value.
I sold off the OEM engine/trans over 20 years ago....put in a modern drive train...... DPFI/roller/overdrive.....serp drive/modern HVAC comp....new aluminum rad and cond.....much less the rest of the upgrades....SO do you want to DRIVE it or STORE it???

mrvette is offline   Reply With Quote
Old 01-11-2018, 03:53 PM   #13
63Corvette
CF Senior Member
 
63Corvette's Avatar
 
Member Since: Apr 2001
Location: Granbury Texas
Posts: 9,060
Thanked 177 Times in 126 Posts
Default

I have never blown a motor which was rebuildable!! You could look right through them.
63Corvette is online now   Reply With Quote
Old 01-11-2018, 04:41 PM   #14
Mineolajoe
Junior Member
 
Member Since: Feb 2015
Location: Mineola Texas
Posts: 43
Thanked 2 Times in 2 Posts
Default

Way back in the '70s I had a '61 and then a '67. The original motors were tired so I built LT1 small blocks from junkyard engines and swapped them out. At the time nobody cared about originality. That's just the way it was.

Fast forward to 2014 when I started looking for another Corvette to revisit my youth. I found a nice, numbers matching '70 coupe that needed a little TLC. It had racked up a lot of miles but the L46 engine was rebuilt in '89 and only had 15k miles on it. It was bored 0.020" to clean up the cylinders and the seller gave me the original 11.5:1 pistons. I'm going to do everything I can to keep it in original condition. Retaining value is one reason but there just are not that many C3s around with the original drivetrain. I see it as saving a piece of history.
Mineolajoe is offline   Reply With Quote
Old 01-11-2018, 04:48 PM   #15
Greg
CF Senior Member
 
Greg's Avatar
 
Member Since: Feb 1999
Location: Palm Springs....but it's a "dry" heat, CALIFORNIA
Posts: 2,897
Thanked 85 Times in 55 Posts
Default

Not to worry!
In a couple more decades when the C3's are worth a small fortune, they'll ALL be numbers matching again.
Just like the C2's!
Greg is offline   Reply With Quote
The Following 4 Users Say Thank You to Greg For This Useful Post:
20mercury (01-13-2018), 449er (01-14-2018), Metalhead140 (01-15-2018), Yankeededandy (01-13-2018)
Old 01-11-2018, 04:54 PM   #16
Mr D.
CF Senior Member
Support Corvetteforum!
 
Mr D.'s Avatar
 
Member Since: Mar 2002
Location: Huntsville AL
Posts: 23,696
Thanked 169 Times in 157 Posts
Default

If the engine in your 1998 Chevy Pickup gave up on you would you rebuild it or replace it? My guess is you would replace it because it's just a used Chevy pickup that has no real value.

A 1975 Corvette in 1990 had no real value because it was just a used Chevy.
Mr D. is online now   Reply With Quote
Old 01-11-2018, 07:25 PM   #17
ed427vette
CF Senior Member
 
ed427vette's Avatar
 
Member Since: Jul 2006
Location: Massapequa Park NY
Posts: 1,383
Thanked 138 Times in 122 Posts
Default

The cars when new were under warranty for up to 5 years. Chevy was not interested in rebuilding the original motor, it was much easier to replace it. Many of these blew there motors within the warranty time frame and would get a CE block. Then those blew up......
ed427vette is offline   Reply With Quote
Old 01-11-2018, 07:43 PM   #18
loup68
CF Senior Member
Support Corvetteforum!
 
Member Since: Jan 2012
Location: myrtle beach sc
Posts: 2,065
Thanked 92 Times in 85 Posts
Default

Don't forget that 1973-up engines lacked the much desired horsepower that the older cars had. So people would want to swap out the original motor, to get more go power. Lou.
loup68 is offline   Reply With Quote
Old 01-11-2018, 07:50 PM   #19
The13Bats
CF Senior Member
 
The13Bats's Avatar
 
Member Since: Mar 2003
Location: Eustis ( Area 51 Bat Cave ) Fl
Posts: 10,276
Thanked 473 Times in 419 Posts
Default

Quote:
Originally Posted by scondon View Post
well I have a odd question, why is it that most all of the c3 vettes I look at do not have the original engine in it including my two. if something goes wrong with the engine why not fix it and leave it with the car. is it not better to have the original engine with the car then to put something else in its place. both my 73 and 75 have 350's in them but not the original engine. I don't get it.
I see purists sometimes seem to take it as a deep personal insult when a c3 doesnt have the orginal factory engine, or a guy doesnt care about saving it,

I am trying to understand your post and question as you say you bought two c3s neither with original engines,
Did you beat up the seller and get both for 1/2 their asking price because they have nom,

I doubt it, too many people building c3 restro mods for a seller of a nom car to take much bs about the engine not being orginal,

Dont get me wrong, a 68 69 427 435 car is cool as all hell, but i wouldnt care if the engine came in it, and people do restamp blocks or use another one of that year, but thats not the original engine,

Perhaps i missed your point and question, if you are simply asking why so few c3s have orginal engines, it starts with only a very small group care about such things and those cars are all around pristine looking 100% orginal head to toe, purists dont go after restro mods normally,
If a guy demands orginal then why would he even pester a seller of a nom car?

So when c3s blew their engine or just wore them out or guys wanted more hp than stock they slapped in a whole new engine, and tossed the old orginal one or sold it or whatever, sometimes they rebuilt it,

saving the old orginal engine for some possible rainy day the car is for sale and some purist wont buy it because of the nom isnt a concern to most c3 owners, especially with restro mods being the thing,

They wanna go play with their cars driving them,

PS
When i say "restro mod" i dont mean all out radical custom i mean the c3s like the majority of guys on this forum have,
A non orginal up to par driver,
The13Bats is offline   Reply With Quote
Old 01-11-2018, 07:55 PM   #20
LT-1 kid
CF Senior Member
 
Member Since: Sep 2007
Location: cary Il
Posts: 1,414
Thanked 30 Times in 29 Posts
Default

Quote:
Originally Posted by ed427vette View Post
The cars when new were under warranty for up to 5 years. Chevy was not interested in rebuilding the original motor, it was much easier to replace it. Many of these blew there motors within the warranty time frame and would get a CE block. Then those blew up......
I thought the warranty back then was 1 year 12k miles or 12 FT
what ever came first,
LT-1 kid is offline   Reply With Quote
Go Back   CorvetteForum - Chevrolet Corvette Forum Discussion >
Reload this Page
  • non original engines
  •  
     
    Reply

    Related Topics
    Thread Thread Starter Forum Replies Last Post
    Engine swap scondon C3 General 8 12-31-2017 10:24 AM
    [C2] Disappointing H.P. on Dyno 327/365...Help! Huckleberry5464 C1 & C2 Corvettes 112 06-20-2017 01:59 PM
    I want to buy an 80-82 C3. Talk me into or out of it! pmpski_1 C3 General 64 04-23-2017 01:10 PM
    Key Code and VATS bypass kbone077 C4 Tech/Performance 15 04-19-2017 04:12 PM
    Matching Number Engine Sluefoot C3 General 32 02-23-2017 09:28 AM


    Thread Tools Search this Thread
    Search this Thread:

    Click for Advanced Search

    Posting Rules
    You may not post new threads
    You may not post replies
    You may not post attachments
    You may not edit your posts

    BB code is On
    Smilies are On
    [IMG] code is On
    HTML code is Off
    Trackbacks are Off
    Pingbacks are Off
    Refbacks are Off

    Forum Jump

    Sponsored Ads
    Vendor Directory

    All times are GMT -4. The time now is 04:18 PM.


    We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
     
    • Ask a Question
      Get answers from community experts
    Question Title:
    Description:
    Your question will be posted in: