Correct intake and carb information wanted (1966, 327, 300HP)

[Erik P.]

Engine ID = 6106626
Engine number = FIII7HR
Engine built in Flint Michigan November 17. HR = 327ci, 300HP, automat, air injection

I'm new at this so I'm not completely sure about the numbers below. If I'm wrong, feel free to correct me!

So I need;
the correct 3872783 intake manifold with a cast date prior to november 17, 1965
the correct 3884505 Holley 4bbl carb with a stamp prior to november 17, 1965

Thanks!

[Russ S.]

Re: Correct intake and carb information wanted (1966, 327, 300HP)

You are correct. Carb part number should be 3884505-DA with a LIST 3367 with a primary metering body number 4743.

[Michael W.]

Re: Correct intake and carb information wanted (1966, 327, 300HP)

The carb was not installed at the engine plant but instead at the car assembly plant. This means it can have a date after the engine build but obviously before the car completion date.

[Jeff S.]

Re: Correct intake and carb information wanted (1966, 327, 300HP)

The correct carburetor is Holley List 3605 -- not 3367 -- when original equipment includes K19 (A.I.R. "smog"), as indicated by your HR engine suffix.

[Erik P.]

Re: Correct intake and carb information wanted (1966, 327, 300HP)

I did some more research and got conflicting information. Remember, this is an A.I.R equipped car (as pointed out by Jeff)


Holley 4160, R3605A, 3890499 (NCRS Pocket Guide, p. 52 and Black Book, p. 46)
Holley 4160, R3416A, 3883921 (Noland Adams, p. 347)


Now I'm not sure on who to trust...

[Joe L.]

Re: Correct intake and carb information wanted (1966, 327, 300HP)

I did some more research and got conflicting information. Remember, this is an A.I.R equipped car (as pointed out by Jeff)


Holley 4160, R3605A, 3890499 (NCRS Pocket Guide, p. 52 and Black Book, p. 46)
Holley 4160, R3416A, 3883921 (Noland Adams, p. 347)


Now I'm not sure on who to trust...

Erik------


I would agree with Jeff. It should be the R3605A, GM #3890499. I cannot find that the Holley R3416A, aka GM #3883921, ever existed. If it did, it was a PRODUCTION-only piece, never available in SERVICE (which would be very unusual for a carburetor).

However, let's say there was a Holley 3416A, aka GM #3883921 and let's say it was a PRODUCTION-only piece that was used for a short while at the outset of the 1966 model year for K-19-equipped 300 HP. That's actually a slight possibility given the sequence of the GM part numbers. Just how many such cars do you think would have been built during the first month or two of PRODUCTION? If it was for as long as 2 months, my guesstimate would be about 125 cars. That 125, or so, would be the entire universe of 3416A carbs EVER existing. Assuming they did exist, what do you suppose your chances would be of finding one 50 years later?

[Erik P.]

Re: Correct intake and carb information wanted (1966, 327, 300HP)

Erik------


I would agree with Jeff. It should be the R3605A, GM #3890499. I cannot find that the Holley R3416A, aka GM #3883921, ever existed. If it did, it was a PRODUCTION-only piece, never available in SERVICE (which would be very unusual for a carburetor).

However, let's say there was a Holley 3416A, aka GM #3883921 and let's say it was a PRODUCTION-only piece that was used for a short while at the outset of the 1966 model year for K-19-equipped 300 HP. That's actually a slight possibility given the sequence of the GM part numbers. Just how many such cars do you think would have been built during the first month or two of PRODUCTION? If it was for as long as 2 months, my guesstimate would be about 125 cars. That 125, or so, would be the entire universe of 3416A carbs EVER existing. Assuming they did exist, what do you suppose your chances would be of finding one 50 years later?

I'm very confused as Noland Adams is quite clear on the subject. He doesn't make any disclaimer about it. It's stated as a fact (unless I totally misread something ofc.) And since his book often is referred to as _the_ "bible", I find it hard to understand that the carburetor would not be the correct one...

By the way, what do you mean by "never available in SERVICE (which would be very unusual for a carburetor)"?

[Joe L.]

Re: Correct intake and carb information wanted (1966, 327, 300HP)

I'm very confused as Noland Adams is quite clear on the subject. He doesn't make any disclaimer about it. It's stated as a fact (unless I totally misread something ofc.) And since his book often is referred to as _the_ "bible", I find it hard to understand that the carburetor would not be the correct one...

By the way, what do you mean by "never available in SERVICE (which would be very unusual for a carburetor)"?

Erik-------


"Never available in SERVICE" means that one could never purchase the 3883921 carburetor "over-the-counter" at a GM dealer parts department. The VAST majority of carburetors used in PRODUCTION (i.e. originally installed on engines on the vehicle assembly production line) were also available in SERVICE, at least for some period of time. The 3883921, if it existed, was never available in SERVICE, at all.

[Erik P.]

Re: Correct intake and carb information wanted (1966, 327, 300HP)

I just googled "Holley R3416A" and found this:

(not sure why it says Citroen in the link. It's about Corvette C2's)

That side apparently comes form this document:

http://www.corvettebergen.com/ownersmanual/c3_repair.pdf

So it did exist

[Erik P.]

Re: Correct intake and carb information wanted (1966, 327, 300HP)

Erik-------


"Never available in SERVICE" means that one could never purchase the 3883921 carburetor "over-the-counter" at a GM dealer parts department. The VAST majority of carburetors used in PRODUCTION (i.e. originally installed on engines on the vehicle assembly production line) were also available in SERVICE, at least for some period of time. The 3883921, if it existed, was never available in SERVICE, at all.

Ok, thanks!

[Joe L.]

Re: Correct intake and carb information wanted (1966, 327, 300HP)

I just googled "Holley R3416A" and found this:

(not sure why it says Citroen in the link. It's about Corvette C2's)

That side apparently comes form this document:

http://www.corvettebergen.com/ownersmanual/c3_repair.pdf

So it did exist

Eric-------


If I were you, I think I'd assume that my car was originally equipped with the R3605A, aka GM #3890499. Finding one of those, properly dated, will be challenge enough and, likely, very expensive. Trying to find an R3416A, assuming they ever did actually exist, is going to be a challenge "beyond the pale". I think there's a good chance you could look for a lifetime and never find one.