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Nov 1, 2008 | 11:31 PM

GOSFAST

Thread Starter

Burning Brakes

Joined: Feb 2005

Posts: 894

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Need Input

Looking for any info on an intake manifold for a BBC.

This is a "square-port" setup, single 4 brl., and set up to accept a 4500 carb!

Has "Winters" snowflake, G.M. part #3963647, with a mid-'66 casting date.

Thanks, Gary in N.Y.

P.S. This piece has been heavily modified and MAY have been done by G.M.?

Nov 2, 2008 | 12:05 PM

427Hotrod

Race Director

Joined: Jan 2000

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From: Corsicana, Tx

2020 C2 of the Year - Modified Winner

2020 Corvette of the Year (performance mods)

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Got a pic??

Sounds neat.

JIM

Nov 2, 2008 | 02:34 PM

GOSFAST

Thread Starter

Burning Brakes

Joined: Feb 2005

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BBC Intae?

Nov 2, 2008 | 03:29 PM

rongold

Drifting

Joined: Jul 2005

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From: Putnam Valley, New York. Amateur Radio Operator K2NS

Not 1966

It's not a 1966 casting, as there are no tapped holes in the coolant runner at the front of the manifold. There are 2 untapped bosses. GM started putting the temperature gauge sending units in the cylinder heads with the 1968 models. I would suspect that the manifold is a service part cast in 1976 possibly for a 454. The service part probably had a completely different part number than the OEM unit it replaced. What is the casting date---you never gave it.

RON

Nov 2, 2008 | 05:09 PM

GOSFAST

Thread Starter

Burning Brakes

Joined: Feb 2005

Posts: 894

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BBC Intake

Quote:

Originally Posted by rongold

Hi Ron, there's no choke provision either. No "boss" to mount the choke!

The only piece I have here now to compare it to is an intake from a '69 Yenko resto (#3933163) with a date on the underside of 05 11 9. The same numbers on the bottom of the 3963647 is 7 11 6. I would have to assume this is the date!

Thanks, Gary in N.Y.

P.S. It's most definitely a "high-rise" style intake, not the later "pancake" type!

Nov 2, 2008 | 07:02 PM

Grey Ghost

Le Mans Master

Joined: Jul 2000

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From: Calhoun, GA_______ Let It Rock

Here is one that I brought home back in the early 80's from the junk yard. It is a 9-27-65 dated square port. Kicking myself for not bringing more home and stashing them back then

And wondering what I left there to be crushed.

Nov 2, 2008 | 09:17 PM

427Hotrod

Race Director

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From: Corsicana, Tx

2020 C2 of the Year - Modified Winner

2020 Corvette of the Year (performance mods)

C2 of Year Winner (performance mods) 2019

2017 C2 of Year Finalist

Well that's pretty interesting. Someone sure had their way with that one!

Maybe it is an LS-6 crate intake from the 70's/80's?

JIM

Nov 4, 2008 | 09:47 AM

geopar

Melting Slicks

Joined: Aug 2000

Posts: 2,767

Likes: 1

From: Spring Branch Texas

intake

Quote:

Originally Posted by GOSFAST

Hi Jim, after doing some "measuring" it turns out a Q-Jet had been adapted, probably some sort of "cheater" in some class racing.

Just took the dimensions and it's definitely NOT a 4500 nor does it like like any factory mod!

My son just dropped it off by me, I didn't get a close up look earlier, now I see what was done.

Thanks, Gary in N.Y.

P.S. Still would like to I.D. original application, can't identify that part number (3963647)!! In the photo, the lower right corner has the casting number super-imposed!

I have the exact manifold, only the plenum has not been cut out, has only one set of carb stud holes, and it is dated 7 16 69.

I sent this info and photos to Joe Lucia (NCRS numbers/parts wizzard) a few years ago, and he could not identify it.

?????

George

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