May 17, 2024  •  For Sale  •  11 Comments

Restoration Required: 1970 Chevrolet Corvette Convertible L46

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If you compiled a list of classic American cars with styling that achieved global recognition, the First Generation Mustang would be an obvious inclusion. Another would undoubtedly be the C3 Corvette. It possesses the right level of aggression to capture hearts and imaginations, and pristine “chrome-bumper” cars continue to command impressive prices. This 1970 Convertible hales from that era, although it requires a lot of work before being considered pristine. The seller is candid about its needs but offers a tempting alternative that would address some of its worst woes. They also include its original potent V8 that has been partially rebuilt. The Convertible is listed here on eBay in Flat Rock, Michigan. Bidding sits at $6,100, which is above the reserve.

Chevrolet offered Corvette buyers eleven paint shades in 1970, with this car’s first owner choosing Marlboro Maroon. They teamed this with a Black soft-top and a factory hardtop finished with Black vinyl. The seller admits they have too many projects and want to move this Corvette to a new home. It makes a reasonable first impression because although the paint is tired, the fiberglass looks surprisingly good. A close inspection will probably reveal minor flaws, but preparing the exterior for fresh paint is a task the new owner might tackle in a home workshop. However, deeper problems mean the restoration won’t be a walk in the park. The seller indicates there is birdcage rust but not how extensive it is. Therefore, a nut-and-bolt approach is warranted to ensure the car is structurally sound. Similar issues with the frame may cause some to throw their hands in the air and consign this Corvette to the “too-hard” basket. There is an alternative, and it might be worth investigating. The seller owns another frame, which is listed here on eBay. It is in good order, with no bends, physical damage, or penetrating rust. Purchasing this would add to the budget but could be the easiest way to achieve a rust-free status. Some trim pieces require TLC, but the tinted glass looks okay.

Chevrolet increased the capacity of its small-block V8 in 1969, stretching it from 327ci to 350ci. The entry-level engine for 1970 remained the ZQ3, which delivered 300hp and 380 ft/lbs of torque. Those seeking more under the right foot could splash $158 on the L46 version, which brought 350hp and 380 ft/lbs to the table. Was the expense justified? The engine slashed the ¼-mile ET from 14.8 seconds to 14.2 seconds. With the top speed increasing from 123mph to 142mph, the L46 represented pretty decent value for money. This Corvette retains its numbers-matching L46, with the bottom end rebuilt and the original cylinder heads awaiting installation. The radiator and original 4-speed manual transmission are intact, as are the shroud, air cleaner, and power steering pump. I can’t tell whether ancillaries like the carburetor and alternator are present, so the new owner may need to go on a spending spree before this small-block roars into life once again.

The interior shots are poor, making it impossible to assess its condition accurately. The Trim Tag confirms it rolled off the line trimmed in Black vinyl, and the carpet is missing. The remaining items are pretty dirty, and a deep clean will be the first step in determining what items will join the carpet on a shopping list. The first owner focused on performance, not opting for features like air conditioning or power windows. However, the tilt/telescopic wheel and AM/FM radio are welcome inclusions.

Restoring this 1970 Corvette Convertible won’t be for the faint-hearted, and it will be fascinating to learn whether our readers would splash the extra cash on the spare frame to ease the build pressure. Bidding has been relatively subdued, suggesting some may see this as more than they can handle. However, the potential value locked up in this classic makes it worth a closer look. Are you tempted, or will you pass on this project?

Comments

  1. 8banger 8bangerMember
    May 17, 2024 at 8:25am

    Great car, great write-up, spell check on hales (hails)!

    Like 4
  2. bull
    May 18, 2024 at 11:46am

    Notice not one picture of the “Birdcage and Frame rust” mentioned in the ad.

    Seller mentions he has a frame for sale in another auction. That tells ME the original frame is bad rusty to the point that it’s way over their head for repair and it’s also probably over the head of all but the best to replace/repair.

    Need much better pics at this point with the bid at $6700 which is plenty given the rusty frame and birdcage.

    Hard Pass!

    Like 3
    • stillrunners stillrunnersMember
      May 18, 2024 at 8:27pm

      Agree…..bull

      Like 1
  3. George Mattar
    May 18, 2024 at 4:12pm

    My friend and mechanic of nearly 50 years who has restored about 10 Corvettes since the 70s bought a silver 70 L46 coupe that sat outside many years. He paid $6,000 for it in 2015. Birdcage rot at top of windshield. Frame rot. He did what he could to restore it and gave up due to it being a money pit. Sold it about 60 percent done fir $17,000. These cars are expensive to restore properly. Pass on these one here.

    Like 0
  4. PRA4SNW PRA4SNWMember
    May 18, 2024 at 10:10pm

    Yep, this was a project where the owner pulled the engine and started the work, and then his friend mentioned that Vettes can rust from underneath. He had a look and was terrified at what he saw.

    He bought a frame hoping to rescue the restoration and then looked at the birdcage and decided that enough was enough.

    This car can be rescued, and 350/350 cars are nice and not that common.
    Tell the seller to throw in the $2500 frame to seal the deal.

    Like 1
  5. PRA4SNW PRA4SNWMember
    May 18, 2024 at 10:13pm

    The seller also has the far more interesting Vixen seen in the background up for action:
    https://www.ebay.com/itm/186440912074

    Like 0
    • Billy
      May 20, 2024 at 4:27pm

      I guess your definition of vixen is from a dictionary I have yet to read.

      Like 0
  6. Claudio
    May 19, 2024 at 4:48am

    Well, the seller has 2 rv’s , nice weather is time to go camping and i can understand his choice !
    He has a very rare vixen and old rv’s can suck the life out of you , so unless one is retired with a huge bank account , its time to choose fun in the sun …
    And the corvette could be a beauty …

    Like 1
    • Billy
      May 19, 2024 at 8:49am

      Claudio,
      Your key operative word is “could”.

      Like 0
  7. Billy
    May 20, 2024 at 4:22pm

    Come on men..this thing is a turd.
    We are all aware that the best ending for this one is in the parts bin of a bona-fide builder/collector.
    I’m moving on. Thanks Billy

    Like 0
  8. Susan waller
    Aug 19, 2024 at 6:15pm

    Hate to tell you, but those pistons are not l46 pistons. You better find out what you really have there.

    Like 0

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