Corvette project car

[280Z Turbo]

Yeah, we'll check that too, but I think the carb needs a rebuild. Just pulled off the carb:




look at dem secondaries

I can't figure out what model number the carb is. I know the intake manifold traces back to a 1966 Chevrolet fullsize car and the block traces to a 1965 fullsize Chevrolet with a 2 speed powerglide.



A pic from Saturday:

[Soup DeVille]

Carb is post-'68 at least. Before '68, the model numbers were stamped on that round part just to the left of where it says Quadrajet. Model number for that one should be stamoed on the right side just above the throttle shaft for the secondaries. The fourth digit is the year.

[280Z Turbo]

Carb is post-'68 at least. Before '68, the model numbers were stamped on that round part just to the left of where it says Quadrajet. Model number for that one should be stamoed on the right side just above the throttle shaft for the secondaries. The fourth digit is the year.

I don't think so. I believe it's a 67 or earlier. There are no numbers on that side of the carb.

I think there was a tag on it that has gone missing over time.

[Secret Chimp]

Four Jets are the best. Look at quadrajetparts.com, they have some identification resources that might help.

[Soup DeVille]

I don't think so. I believe it's a 67 or earlier. There are no numbers on that side of the carb.

I think there was a tag on it that has gone missing over time.

Possible, it just doesn't look like the tag was ever there.

[280Z Turbo]

Four Jets are the best. Look at quadrajetparts.com, they have some identification resources that might help.

Been there, done that.

I've googled the casting numbers and found a few other accounts of people with lost tags.

[280Z Turbo]

Possible, it just doesn't look like the tag was ever there.

Well, it doesn't say "place ID tag here" but I've seen tags in that spot on other quadrajunks.

[Secret Chimp]

Worst case is you can identify it just by taking it apart now and comparing the gaskets vs the kits. Most kits apply to at least a half-dozen carb numbers. From the outside it looks pretty close to the one I have.

[FlatBlackCaddy]

What's a carburetor?

[Soup DeVille]

Well, it doesn't say "place ID tag here" but I've seen tags in that spot on other quadrajunks.

Yeah, that where it goes on early carbs, but they're pretty well attached and I've not seen one just fall off before; and I'd think prying it off would leave marks.

[Soup DeVille]

What's a carburetor?

A sort of calibrated fuel leak.

[Secret Chimp]

Hey fuel injection is just a set of electrically actuated fuel leaks...

[280Z Turbo]

Ordered a Pertronix Ignitor III and a Flame Thrower III coil.

Also got a book on how to rebuild and modify your Quadrajunk.

[280Z Turbo]

Pulled apart the distributor today. Turns out it's got an original distributor. The aluminum tag says it's a 1963 corvette distributor assembled in April of 1963. It had 50 years of gunk inside of it so I cleaned it out with a parts washer and mineral spirits. I'm sure it will work much better with an electronic ignitor, new seals, and a fresh cap and rotor.

[280Z Turbo]

Quadrajunk has many parts and tiny passages, but I think we can figure it out. It's soaking in minerals spirits over night.

I bought a new fan and clutch for it, but it's closer to the engine than the old fixed fan. It's not shrouded by the shroud, so I may return it.

[Soup DeVille]

Quadrajunk has many parts and tiny passages, but I think we can figure it out.

it helps if you have two or three of them to compare.

Its even better if one of them is put together right.

[280Z Turbo]

It ran before, it will run again!

[280Z Turbo]

Possible, it just doesn't look like the tag was ever there.

It has brass caps, only the early ones had those. You're wrong.

[Soup DeVille]

It has brass caps, only the early ones had those. You're wrong.

Well, fine!

[hotrodalex]

Junk it and get a Carter/Edelbrock. All your dreams will come true.

[280Z Turbo]

Junk it and get a Carter/Edelbrock. All your dreams will come true.

The quadrajet is better than those knuckle dragging ape carburetors.

[hotrodalex]

Only if it works

[280Z Turbo]

Well, fine!

It's important that you know you suck.

[280Z Turbo]

Only if it works

It did and it will. Just needed a rebuild.

Those big secondaries are a huge performance advantage, IMO.

[Soup DeVille]

It's important that you know you suck.

Hey, you had the thing in front of you and weren't quite sure. I had two pictures, and not from the angle that I could tell much from.

But, yes, I was wrong.

[FlatBlackCaddy]

I'd get a 1000cfm dominator on there.

Don't worry about if it can actually flow that much air, just pump a shit load of fuel down that bitch and watch it go.


Atleast that's standard practice around here.

[68_427]

Edelbrock carbs don't like my dad's 427.

[GoCougs]

The quadrajet is better than those knuckle dragging ape carburetors.

Ever read the hot rod mags or go to car shows? Virtually none of the high end modified street carb'd engines have Q-Jets (or T-Quads). Ditto for the highest performance engines of the era (which by today's modding standard are fairly average in performance) - L79 327, DZ 302, LT-1 350, 383/440 Magnum, 426 Hemi, Boss 429, LS-6 454, etc. (they either had the Carter AVS/AFB (which is now the Edelbrock AFB) or some sort of Holley).

[hotrodalex]

Holleys are cool but a pain for garage queens.

[280Z Turbo]

From what I read, Holleys are good for performance, but have shitty fuel economy on the street. Edelbrocks are good for people without the brains to learn how the Rochester works.