Help What did I buy
Thread Starter
6th Gear
Joined: Jun 2012
Posts: 6
Likes: 0
No MacDonald's Barn here
Sorry to say this is on the up and up, as it was stored in a very modern heated 4 car garage, and airplane hangar over the years. If I prefer to p**s my money away this way during retirement, then so be it...LOL I could have bought one for 15K and thrown in another 15K getting it into the shape this one is, but after racing roundy round for years and throwing money into that hole, I just thought what the hell..... I love the car whether it is Yenko equipped or not, and my son will enjoy it and the rest of my money when I die! 
Drifting
Joined: Jun 2010
Posts: 1,781
Likes: 15
From: Oxford Ohio
Just enjoy it. I've paid to much for stuff before and less than worth before, If it makes me happy who cares, my money SO enjoy it no matter what it is. You are the only judge really. I have some things the average person might call junk, but I enjoy working on it so that's just the way it goes.
Pro
Joined: Feb 2012
Posts: 668
Likes: 21
I love the car
Pro
Joined: Apr 2012
Posts: 526
Likes: 1
From: Maine
My parents were workaholics 90 hours a week, not to get all mushy but my Dad passed away on Dec 19th, my Mom had just started to show signs of Alzheimer’s a few years ago. When my Dad died my Mom went down faster then a rock she is in a home for Alzheimer patients now.
So enjoy life while you can.
So enjoy life while you can.
Le Mans Master
Joined: May 1999
Posts: 6,692
Likes: 29
From: Texas
Sorry to say this is on the up and up, as it was stored in a very modern heated 4 car garage, and airplane hangar over the years. If I prefer to p**s my money away this way during retirement, then so be it...LOL I could have bought one for 15K and thrown in another 15K getting it into the shape this one is, but after racing roundy round for years and throwing money into that hole, I just thought what the hell..... I love the car whether it is Yenko equipped or not, and my son will enjoy it and the rest of my money when I die!
Le Mans Master
Joined: Mar 2008
Posts: 5,948
Likes: 72
From: Oxford MA-----You just lost the game!!!!
I am going to also post this inquiry on the Yenko Site and see if they can come up with something. The mother never drove it, she kept it as a memorial to her son in a heated garage and had it serviced once in awhile, but finally gave it up to his close friend from college. He never knew she had the car and was in town visiting her, after not seeing her in a very long time. I bought it from him for $30K.....I know I am nuts (at least according to my wife).
Keep the shiny side up!
Scott
Race Director
Joined: May 2005
Posts: 10,674
Likes: 122
From: Millington Illinois
St. Jude Donor '08-'09
A lot of guys on here go out and spend $15,000 on a car then, to make it what they want they put a $10,000 engine in it, a $8000 rear end, a $5000 trans and clutch setup, $3500 on suspension Then the frame off and incidentals add up to over $10,000 and still have to paint it and do the interior which cost me another $15,000.....OOPS..........
Burning Brakes
Joined: Sep 2011
Posts: 896
Likes: 7
Small parts of this Corvette hobby are logical. The rest are not. If you pay big upfront and later realize it, you will be more conservative with ''add ons'' and ''while Im at its''. The other danger is when you get the car cheap upfront, lol. That snowball justs gets bigger as it rolls down hill. "My Corvette lies to me. It tells me it needs things. It whispers in my ear, that each mod is a good investment." Vintage Corvette ownership would be excellent material for a Stephen King novel, lol.
Last edited by uxojerry; Jun 11, 2012 at 03:49 AM.
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Pro
Joined: Apr 2012
Posts: 543
Likes: 10
From: B.F.E....Bowling Green Kentucky
My parents were workaholics 90 hours a week, not to get all mushy but my Dad passed away on Dec 19th, my Mom had just started to show signs of Alzheimer’s a few years ago. When my Dad died my Mom went down faster then a rock she is in a home for Alzheimer patients now.
So enjoy life while you can.
So enjoy life while you can.
Amen!! Do what makes YOU happy! I'll get mushy too and tell ya my dad worked hard and saved every penny he had and he never got to enjoy it. Cancer took him 7 years ago. I have seen so many people worrying about the "what-if's" in life that they don't enjoy living. They are "making a living but not making a life".
Thread Starter
6th Gear
Joined: Jun 2012
Posts: 6
Likes: 0
Thanks for the help
Although I am still in a pickle as to what the hell is really in this car, I enjoy the support of Corvette owners and their kind words. At least I will enjoy this car,
as I have my other 4 (63/61/66/84)over the years. I wish I had three out of those four in my garage today! Who knows this may be my last one! 
The guys over at the Yenko site came up with an L88 or LS6, which did not make sense as I believe a L88 is a 427, and with the engine blocked dated 1974 and ID'd as a 454 block it just added to the confusion.
Drive it and enjoy it!!!!
as I have my other 4 (63/61/66/84)over the years. I wish I had three out of those four in my garage today! Who knows this may be my last one! The guys over at the Yenko site came up with an L88 or LS6, which did not make sense as I believe a L88 is a 427, and with the engine blocked dated 1974 and ID'd as a 454 block it just added to the confusion.
Drive it and enjoy it!!!!
Safety Car
Joined: Aug 2000
Posts: 4,148
Likes: 642
From: Bandera Texas
Recently purchased a 1975 which was in storage for many years due to owner dying in 1978. It is a BBC Block ID 3999289 / Aluminum Intake manifold 3933198 (no date code) / Holley Dbl.Pumper no choke horn only ID is 12R10552B (at least 750CFM or 800 CFM) / Rock crusher Muncie Close ratio / If this may help no ID on Heads, but they are aluminum / Spark plug is Autolite 66 / Hooker chrome sidepipe headers / Strange thing is it has all the bells and whistles AC etc and everything works even the clock! Mother of deceased has had it in storage for over 30 years and she lives outside of Canonsburg Pa. She said he had it rebuilt by Yenko in 1976 or 1977 she wasn't sure. Does anyone have any idea on what this is? All my searches on the internet tells me this has an outside chance of being an LS6 BBC. There are no date codes on anything and only casting numbers I gave above. The engine block had a "125 73" in the casting also. If anyone can be of assistance I would greatly appreciate it!
My research shows Block # 3999289 is a 454 block was new for the 1970 model year and replaced the 427. It was used in passenger, Chevelle, Monte Carlo and Corvette applications from 1972 thru 1975. It was only available as a 2 bolt main in production vehicles. It also was used in heavy duty truck applications theu 1978.
There have been folund several 4 bolt blocks found with 1973 and 74 dates, but they are the exception, and ''all'' were over the counter engines.
The 3933198 intake was used only on 1968 and 69 L-88 Corvettes.
The 12R10552B is not in any of my files, but generally, on the air horn there usually is the GM part number where you found this number and under that there should be a ''LIST'' #, which is a 4 digit number that designates the series and CFM Rating. 68-68 L-88 carbs has LIST # 4296, and were ''double pump'' types and had the GM 33955205. Same carb was used on All aluminum ZL-1 Camaro engines as well.
Last edited by jimgessner; Jun 19, 2012 at 08:20 PM.
Le Mans Master
Joined: Oct 2000
Posts: 6,209
Likes: 33
From: Texas-out west
enjoy the car, you are happy and cost should not factor in on happiness, hopefully you will find some background and paperwork on the car, if not still enjoy with family and friends...good luck
Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
I think some people will outthink themselves and not allow themselves any pleasure in life unless their spread sheet says so.
HUH?!
Fun...thats all these damn cars are about. Some time behind the wheel and not having to think. They are just metal rubber and plastic.
If you gotta worry about every dime, paper 20 yr old pic hose clamp, if that stuff keeps you awake at night get another hobby or a shrink .
These are money pits just accept it enjoy the car who cares what its worth really. Let others sit at home and agonize over it while youre out banging gears and enjoying life.
Enjoy the car OP
HUH?!
Fun...thats all these damn cars are about. Some time behind the wheel and not having to think. They are just metal rubber and plastic.
If you gotta worry about every dime, paper 20 yr old pic hose clamp, if that stuff keeps you awake at night get another hobby or a shrink .
These are money pits just accept it enjoy the car who cares what its worth really. Let others sit at home and agonize over it while youre out banging gears and enjoying life.
Enjoy the car OP
Burning Brakes
Joined: Apr 2007
Posts: 1,039
Likes: 62
From: Kona Hawaii
Great find! As was mentioned earlier if you buy a cheaper car you end up sinking thousands of dollars in it to get it where you want it.You bypassed all that and scored a terrific vette with a BBC.Take your run of the mill 75 vette and stuff a BB in it,and your into it with major dollars.I own a 76 that I bought for 7500.00.Engine upgrades aluminum heads,manifold,cam,roller rockers,new carb & CDI. Total cost with misc items close to 10k.Next add the 6spd Richmond trans swap from a TH350 auto increase that total another 5k.I'm now into my Vette close to 15k,it's no BB but it sure is fun to drive and gets the when I'm out and about.Enjoy that BB you lucky dog!! Next upgarde a big cube SB maybe a 427ci 
when I'm out and about.Enjoy that BB you lucky dog!! Next upgarde a big cube SB maybe a 427ci
Racer
Joined: Feb 2008
Posts: 497
Likes: 0
From: Streator Illinois
I think some people will outthink themselves and not allow themselves any pleasure in life unless their spread sheet says so.
HUH?!
Fun...thats all these damn cars are about. Some time behind the wheel and not having to think. They are just metal rubber and plastic.
If you gotta worry about every dime, paper 20 yr old pic hose clamp, if that stuff keeps you awake at night get another hobby or a shrink .
These are money pits just accept it enjoy the car who cares what its worth really. Let others sit at home and agonize over it while youre out banging gears and enjoying life.
Enjoy the car OP
HUH?!
Fun...thats all these damn cars are about. Some time behind the wheel and not having to think. They are just metal rubber and plastic.
If you gotta worry about every dime, paper 20 yr old pic hose clamp, if that stuff keeps you awake at night get another hobby or a shrink .
These are money pits just accept it enjoy the car who cares what its worth really. Let others sit at home and agonize over it while youre out banging gears and enjoying life.
Enjoy the car OP
Terry
Racer
Joined: Mar 2012
Posts: 396
Likes: 13
From: New Bern NC
Enjoy her. I love my 75, also a "barn find" (neighbors garage and 10 years of asking if he was going to sell her) and I am leaving her stock as she is 99% original....but I wont tell you what I paid. She looks great and drives great and thats all that matters.
Safety Car
Joined: Aug 2000
Posts: 4,148
Likes: 642
From: Bandera Texas
Another 75 l-88 story
West Coast NCCC organizer and past Regional Director ALLEN MORRIS bought a 75 convertible that was in Kansas about 20 years ago. Allen has probably owned over 150 Corvettes over the years, but this one stands out.
It was a beautiful Classic White with Dark Red interior and was originally an L-82 four speed car. Under the hood however, was a very nice 69 L-88 engine. What a beast. The car was great fun and Allen loved driving it and showing it off at regular car gatherings.
Allen had moved to Southern California from Kansas in 1977. After months of enjoyment driving on the Kansas tags, he was forced to get it titiled and registered in California.
Yep, you guessed it. To meet emmission tests, he had to re-install the original L-82 350/205hp engine and all the smog accessories in order to make the car street legal.
What a let down. Now it was just ''another'' nice 75 convertible.
But we all remember what a neat car he had when it first showed up.
It was a beautiful Classic White with Dark Red interior and was originally an L-82 four speed car. Under the hood however, was a very nice 69 L-88 engine. What a beast. The car was great fun and Allen loved driving it and showing it off at regular car gatherings.
Allen had moved to Southern California from Kansas in 1977. After months of enjoyment driving on the Kansas tags, he was forced to get it titiled and registered in California.
Yep, you guessed it. To meet emmission tests, he had to re-install the original L-82 350/205hp engine and all the smog accessories in order to make the car street legal.
What a let down. Now it was just ''another'' nice 75 convertible.
But we all remember what a neat car he had when it first showed up.
Thread Starter
6th Gear
Joined: Jun 2012
Posts: 6
Likes: 0
Why Autolite 66 Plugs
I can not for the life of me find out why there are Autolite 66 spark plugs in this car. I know stupid is, as stupid is and all that! I bought 8/ E3 -42 plugs and went to install them and the AH Crap moment hit me. They would not even begin to start to thread into the head. A little research and I find out this plug is used in many 60's and 70's cars of 6 cylinder design......... Talk about banging my head??? The 66 plug is a .750 reach with 14 MM threads/ the E3-42 is a .440 reach with 14 MM threads. I bought the E3's based upon a BBC forum, and used the GM3946074 head as the basis. Why did they modify and used the Autolite? or is that what is suppose to be in this head to begin with? Any help would be appreciated. Thanks for the Support! PS>>>>>> Contacted previous owner and he said it had a Hone O Matic in it at one time, at least that gives me a reason for no emergency brake. Will crawl under it and look for the "hole" where the lever was to engage it this weekend.
Last edited by 75vetteBBC; Jun 20, 2012 at 04:30 PM. Reason: Add info
