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NOM and How it Effects Value...?

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Old Mar 26, 2016 | 05:42 PM
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Default NOM and How it Effects Value...?

I'm looking for a C3 chrome bumper Vette I can fix up this summer, then sell on in a year or two when something else comes my way that catches my eye.

I see several lower optioned (non-big block) 1968-71s with NOM engines. How does a NOM engine effect the car when buying and selling? Most of these car don't seem modified and look pretty original EXCEPT the NOM engine. I guess I'm wondering how to factor in the NOM when buying for purchase price.

Ive seen the Hagerty Valuation tool but no calculation for a NOM. Any rules of thumb or guidelines?

Feedback?
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Old Mar 26, 2016 | 06:07 PM
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Hi 72/86,
My take is the more 'special' (high performance) the original engine was the more a nom will affect the car's value.
A base motor car not too much, a "special high performance" motor car a lot, maybe a whole lot.
Regards,
Alan

Last edited by Alan 71; Mar 26, 2016 at 06:09 PM.
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Old Mar 26, 2016 | 06:15 PM
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I wouldn't worry about it, if you find a car you like for a good price, enjoy it and have fun! When you take off in first gear and punch it, it doesn't matter if it has an original or nom.
If I had a time machine, I would go back 41 years and buy a '71 350 4 speed Coupe instead of a '71 454 4 speed Convertible.
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Old Mar 26, 2016 | 08:09 PM
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I've never seen any statistics compiled on NOM sales prices. Best guess is roughly a 20% reduction for being a NOM. Maybe more if you're talking about a high performance model, maybe a bit less for a base model.
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Old Mar 26, 2016 | 08:49 PM
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Originally Posted by Alan 71
Hi 72/86,
My take is the more 'special' (high performance) the original engine was the more a nom will affect the car's value.
A base motor car not too much, a "special high performance" motor car a lot, maybe a whole lot.
Regards,
Alan
How do I know which engine came with the car originally ?
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Old Mar 26, 2016 | 09:38 PM
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VIN stamp shows it came with the car. Then the correct block and date code.

I had my my zero decked so what was left of the stamp is now gone.
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Old Mar 26, 2016 | 10:19 PM
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You probably looked already, but the "C-3s For Sale" forum section has a post with a craigslist link to boston and surrounding area cars, there is a blue '69 350-4sp coupe there without motor and trans for $7500.
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Old Mar 27, 2016 | 12:18 AM
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Originally Posted by CV62Air
You probably looked already, but the "C-3s For Sale" forum section has a post with a craigslist link to boston and surrounding area cars, there is a blue '69 350-4sp coupe there without motor and trans for $7500.
That would be cool to drop in a F.I. LT-1 in there. But I don't have the know-how for that or the tools. I do have a lift tho...
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Old Mar 27, 2016 | 12:58 AM
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Originally Posted by 72and86
How does a NOM engine effect the car when buying and selling?
You would probably get better and more accurate answers if you asked what's better, a blonde, a brunette, or a red head.

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Old Mar 27, 2016 | 07:57 AM
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All depends on the buyer. It would make no difference whatsoever to me.
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Old Mar 27, 2016 | 10:26 AM
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Numbers geeks will foam at the mouth over an almost 50 yrd everything
Personally I like fresh stuff that makes power.

Build it so its worth your time as you own it otherwise you wont enjoy it at all. I did the numbers thing once with a 73 it meanth NOthing come sale time. Evertything was old under the hood even though it looked good....down the every seal and gasket. Mint interior but still....
The numbers guys would want to grace me with their presence, ask 250 questions (with no intentions of buying anything). I quit showing it to guys like that I could care less what the various types of factory hose clamps came on it
Friend stepped up with the cash 2 mos later had a new paint job solid roller 383 700r and drove the pee out of it. And turned a profit on it to boot

Think it was worth it?

Last edited by cv67; Mar 27, 2016 at 10:28 AM.
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Old Mar 27, 2016 | 10:39 AM
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Originally Posted by 72and86
I'm looking for a C3 chrome bumper Vette I can fix up this summer, then sell on in a year or two when something else comes my way that catches my eye.

I see several lower optioned (non-big block) 1968-71s with NOM engines. How does a NOM engine effect the car when buying and selling? Most of these car don't seem modified and look pretty original EXCEPT the NOM engine. I guess I'm wondering how to factor in the NOM when buying for purchase price.

Ive seen the Hagerty Valuation tool but no calculation for a NOM. Any rules of thumb or guidelines?

Feedback?
My thoughts in some cases it does make a difference especially if buyer is looking to show the car. Just recently a TV show traveled to Dubi and one big car collectors there said he did not care about numbers matching just wanted the car to look very nice as people looking at his cars don't crawl around to look at numbers .My'70 is a non matching but people looking at it to buy don't seem to care as it has modifications (Motion) done to it ,an the other hand my 68 L 88 has matching #s and that's what buyers seem to want . So it can go both ways .You can go nuts with the #s matching deal and broke also .It does help sell the car down the road I think
Wes
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Old Mar 27, 2016 | 10:44 AM
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Originally Posted by Alan 71
Hi 72/86,
My take is the more 'special' (high performance) the original engine was the more a nom will affect the car's value.
A base motor car not too much, a "special high performance" motor car a lot, maybe a whole lot.
Regards,
Alan
Originally Posted by BBCorv70
I've never seen any statistics compiled on NOM sales prices. Best guess is roughly a 20% reduction for being a NOM. Maybe more if you're talking about a high performance model, maybe a bit less for a base model.
it's all matter of opinion which will differ and skepticism.
The willingness of the seller to negotiate and the bargaining power of the buyer determine the outcome.
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Old Mar 27, 2016 | 11:48 AM
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Originally Posted by 72and86
I'm looking for a C3 chrome bumper Vette I can fix up this summer, then sell on in a year or two when something else comes my way that catches my eye.

I see several lower optioned (non-big block) 1968-71s with NOM engines. How does a NOM engine effect the car when buying and selling? Most of these car don't seem modified and look pretty original EXCEPT the NOM engine. I guess I'm wondering how to factor in the NOM when buying for purchase price.

Ive seen the Hagerty Valuation tool but no calculation for a NOM. Any rules of thumb or guidelines?

Feedback?
That's a tough question . Many people view numbers match different. Some just look at the engine to see if the VIN matches and others look at everything including transmission and rear end. Then there is the other group that look at everything such as carb numbers , exhaust manifold numbers and even proper hose clamps etc. Then there is the period correct engines which are a step toward original drivetrain but without correct VIN numbers . My 72 convertible has 53k. original miles on the car but it has an original 72 engine with 50k. original miles completely stock down to the carb but doesn't have the serial numbers matching the car. Everything else is original to the car including the 4 speed and rear end . How do you put a valuation on these cars ? I don't know except to say that there is always someone that is not looking for a NCRS car and just want a clean chrome bumper car that hasn't been attacked by Bubba .
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Old Mar 27, 2016 | 12:11 PM
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Im betting the guy that wants a clean non bubba bumper car or earlier would describle most buyers. Had some flat out tell me they could care less with the #s bit. It did seem to help when I sold my 70 Z/28. Only reason it sold like that is the person I bought it from did such a perfect job of restoring it I couldnt bring myself to mess with it. It did have someheavily ported heads, extrude honed intake and one massive solid FT along with 12:1 compression (through correct manifolds LOL)Nobody knew it looked so painfully stock

It does help sell the car down the road I think
Having the right car imo is the key....like your L88

Unfortunately many try to sell off later stuff kind of not so desirable cars (like my 73...in the 90s nobody wanted one) with an inflated price but "The numbers....." in hopes of. They are usually disappointed. I was and got lucky to get out from underneath it. Only neat part of owning it was looking at it..or the great interior. I hated driving it damn it was a slow azz turd lol

Last edited by cv67; Mar 27, 2016 at 12:15 PM.
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Old Mar 27, 2016 | 02:16 PM
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I would imagine most original engines pulled were the base engines in exchange for something more powerful... Thats probably also why I'm seeing a lot of the NOM chrome vettes w/ no/little options.
But thats just a guess.
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Old Mar 27, 2016 | 04:38 PM
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Originally Posted by 72and86
I would imagine most original engines pulled were the base engines in exchange for something more powerful... Thats probably also why I'm seeing a lot of the NOM chrome vettes w/ no/little options.
But thats just a guess.
I think you're more likely to find a true original base model than a higher performance model because the people buying the base model probably didn't buy them to campaign on weekends. People buying LS5's, LT1's, etc, most likely bought them to beat the heck out of, weekend drags. Many probably had their engines blown early in life. For the base models which may have been upgraded, you may stand a better chance of finding the original engine. It was less likely to have a hole through the side of the block.

Last edited by BBCorv70; Mar 27, 2016 at 04:39 PM.
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Old Mar 27, 2016 | 06:34 PM
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Originally Posted by 72and86
I would imagine most original engines pulled were the base engines in exchange for something more powerful...
I remember when people would yank the original 454 off and toss them in the garbage, and stuff a 350 instead to get better gas milleage.

Last edited by LT1M21Vette; Mar 27, 2016 at 06:35 PM.
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Old Mar 27, 2016 | 09:01 PM
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remember the long lines and gas rationing of the 70s well

Neighbor would always drag home 1970 Challenger R/Ts all of em purple
First thing he would do is remove the 383 and drop in a 318 3bbl. He threw all those 383s out couldnt give away a big motor back then.
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Old Mar 28, 2016 | 08:09 AM
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Originally Posted by 72and86
...How do I know which engine came with the car originally?...
Factory documentation from the seller for 68-71. Beginning with the 72 model year, the VIN contains a code for the original engine type.
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