Hello. My recent barn find.
Le Mans Master
Joined: Nov 2001
Posts: 8,804
Likes: 1,945
From: LONG ISLAND
2025 C3 ('68-'73) of the Year Finalist - Unmodified
2024 C3 of the Year Finalist - Unmodified
2023 C3 of the Year Finalist - Unmodified
6500 would be correct for a 435hp car, but since it's not in the car ( unless you took it out yourself ) it could have come from any car.
Drifting
Joined: Jul 2023
Posts: 1,973
Likes: 879
From: Richardson Texas
2025 C6 of the Year Finalist - Unmodified
2024 C6 of the Year Finalist - Unmodified
Well, it looks to certainly be the real deal. The mystery is the engine. Maybe some of the tri-carb experts can chime in, and I have zero experience with those, but I would guess that back in the day performance trumped provenance. So, it may have been more simple to replace the manifold and the three deuces with a single four barrel setup, both from a tuning perspective as well as a performance perspective. To see exactly what you have, I think you will have to do a partial tear down to get parts numbers from some of the internal parts (in addition to the block). I love a good mystery. Please keep us informed and I hoping that some experts chime in to give you some simple and solid advice.
Thread Starter
Cruising
Joined: Feb 2024
Posts: 12
Likes: 3
From: Gulf Shores and CloudCroft
I’m traveling, but will check those items when I get back.
Did Chevy put the L72 in corvettes? From what I see, it was a 4 bbl engine, initially rated at 450hp then derated to 425hp. However, I sense this car is the L71 that had the 3x2 replaced with an after market 4bbl set up. BTW, I have a reproduction Holley 3x2 set up that came out of my 440 Cuda. Wonder if they’re the same carbs. I’ll reach out to Holley- albeit not original. And it looks like period correct and OEM manifolds, linkage and air cleaners are out there.
Did Chevy put the L72 in corvettes? From what I see, it was a 4 bbl engine, initially rated at 450hp then derated to 425hp. However, I sense this car is the L71 that had the 3x2 replaced with an after market 4bbl set up. BTW, I have a reproduction Holley 3x2 set up that came out of my 440 Cuda. Wonder if they’re the same carbs. I’ll reach out to Holley- albeit not original. And it looks like period correct and OEM manifolds, linkage and air cleaners are out there.
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Drifting
Joined: Apr 2013
Posts: 1,905
Likes: 392
From: Big Sky Country, Montana
Well, it looks to certainly be the real deal. The mystery is the engine. Maybe some of the tri-carb experts can chime in, and I have zero experience with those, but I would guess that back in the day performance trumped provenance. So, it may have been more simple to replace the manifold and the three deuces with a single four barrel setup, both from a tuning perspective as well as a performance perspective. To see exactly what you have, I think you will have to do a partial tear down to get parts numbers from some of the internal parts (in addition to the block). I love a good mystery. Please keep us informed and I hoping that some experts chime in to give you some simple and solid advice.
