1967 Pontiac Firebird

[Paul Ceasrine]

March 1967 (Super Stock and Drag Illustrated)

[Paul Ceasrine]

Kip,

The 1967 Pontiac Firebird came with either the 400/325 HP or the 'optional' 400/335 HP 'Ram-Air'.

The 400/325 HP had the same,
* 10.75 - 1 Pistons
* Casting #670 Cylinder Heads (72.0 CC)
* 2.11" Intake / 1.77" Exhaust
* Cast Iron Intake Manifold

Note; To get a 'true {10.75 - 1 Compression-Ratio}, the Cylinder Heads would require a {65.0} CC Volume.

Differences;

400/325 HP - Camshaft
* .421" Intake / .424" Exhaust
* 273* / 289" Duration
* 47* Overlap

Valve Springs (Inner & Outer)
* 103 lbs. to 117 lbs. {Valve Closed}
* 239 lbs. to 257 lbs. {Valve Open}

400/325 HP- Rochester 750 CFM Quadra-Jet
* #7037263 (Manual)
* #7027272 (Automatic)
-------------------------------------------------------------------------------------------

400/335 HP 'Ram-Air' - Camshaft
* .424 Intake / .424 Exhaust
* 301* / 313* Duration
* 76* Overlap

Valve Springs (Inner & Outer)
* 135 lbs. to 145 lbs. {Valve Closed}
* 287 lbs. to 303 lbs. {Valve Open}

400/335 HP 'Ram-Air' Rochester 750 CFM Quadra-Jet
* #7037273 {Manual}
* #7037276 {Automatic}

[Paul Ceasrine]

1967 Pontiac Firebird 'H.O'

Called the 'Light Heavyweight'

With a 'special' 'High Output' 326/285 HP.

285 Horsepower @ 5000 RPM's
359 Foot Pounds/Torque @ 3200 RPM's

* 3.719" Bore x 3.750" Stroke
* 10.5 -1 Compressior Ratio

Featuring Casting {#141} 'High Compression' Cylinder Heads with
(52.0 CC) Combustion Chambers.

1.92" Intake / 1.64" Exhaust

Camshaft = .386" Intake / .421" Exhaust - 269* / 277* Duration - 47* Overlap

Valve Springs = (#95 lbs. = Valve Closed) - (#225 lbs. = Valve Open)

Carter AFB (600 CFM) - (1 7/16" Primary x 1 11/16" Secondary)

Dual Exhaust (2.00" Primary} - (2.25" Tail-Pipe)

4-Speed (M-20 Wide-Ratio) = 2.52 - 1.88 - 1.46 - 1.00

Clutch = 10.4" (6.5" Inside) - .140" Thickness - #2050 lbs.. Load-Rate

2-Speed Power-Glide Automatic

Gear-Ratio's = 3.08 - 3.23 - 3.36 - 3.55 - 3.90
--------------------------------------------------------------------------------------------------

Special Order Options;

* 4-Speed (M-21 Close-Ratio) = 2.20 - 1.64 - 1.28 - 1.00

* Turbo Hydra-Matic (3-Speed Automatic)

* 4.33 Gear-Ratio
-------------------------------------------------------------------------------------------------

Only 6078 Produced

[Paul Ceasrine]

Kip,

The $64,000 question......

How many 1967 Pontiac Firebird's were ordered with an M-21 Close-Ratio 4-Speed, and 4.33 Gears.

[Paul Ceasrine]

Originally Posted by Paul Ceasrine

Kip,

The $64,000 question......

How many 1967 Pontiac Firebird's were ordered with an M-21 Close-Ratio 4-Speed, and 4.33 Gears.

-------------------------------------------------------------------------------------------------

'Zero'

Nobody ever ordered one.

Productions Numbers
Firebird - 326 'H.O'...................6078
Firebird - 400.........................18,632
Firebird - 400 'Ram-Air'...............65

Total.........................................24,7 75

[Paul Ceasrine]

Kip,

The Turbo Hydra-Matic (3-Speed) was 'only' avaibable with the
Firebird 400.

The Firebird 326 'H.O' could 'only' get the 2-Speed 'Power-Glide'
for an Automatic.

Both the Firebird 326 'H.O' and Firebird 400 had;

* Special Suspension Package
* #345 lbs/inch Load-rate 'Front Springs'
* #135 lbs/inch Load-rate 'Rear Mono-Leaf Springs
* 5/8" Front Sway-bar

* Automatics had a Traction-Bar installed for the right rear.
* 4-Speeds had 'dual' Traction Bars

* 10-Bolt Rear-Ends

* Dual Exhaust

Note; The 400/335 HP 'Ram-Air' engine had '428' exhaust manifolds.

Note; The 400/335 HP 'Ram-Air' engine had a 'special calibrated'
Rochester 750 CFM Carburetor.

Note; 'Ram-Air' option (Cost; $263)

[oldskool]

Probably nobody that cares, but there is some slight misinformation this thread.

First thing I'll say is that I've never heard of anybody running the 326 in a competitive Stocker. The holes are just too small.

But, can anybody here site any competitive 326 powered Stockers ?

The Pontiac 2-speed auto was referred to as a "power-glide". It's my understanding that all the '64-'69 Pontiac A & F-body 2-speed autos were not Chevy Powerglides, but were what some call a "Super Turbine 300". I think these were also used in some Buicks & Olds too. IIRC, they could use a TH350/TH400 type converter.

https://en.wikipedia.org/wiki/Super_Turbine_300

BUT, after '69, SOME Pontiacs did come with a PG trans. I think some of 'em came with a dual pattern case & some came with that same case, but only the BOP holes were drilled.

I only bought one of the dual pattern PG's. Actually bought the whole car(what was left of it) from a U-Pull-It yard. I think it was a '71 Bird. May have been a '70. When I unbolted it from the 350 engine, the bell housing part fell into several pieces. Couldn't tell it was cracked, because of all the caked on dirt. I only saw one other, which was in a Lemans. I wanna say that they only came in Pontiacs in '70 & '71, but could be wrong.

https://www.ebay.com/itm/293982744520

[oldskool]

" A couple of little tricks, and you could get them to run high 13.00's, and still drive them on the street."

I doubt that, seriously.

Very few '60's & early '70's big engine Musclecars would run 13's, on the street. Most ran 14's. My '69 366hp GTO would barely run 13's, with hard street tires, and that was with 3.90 gears. Would take some serious changes from a stock 326 Bird, to get the little 326 to run in the 13's, and still be streetable, IMO.

But hey, what do I know. There may have been 13 sec 326 powered Birds in almost every area that had a Pontiac dealer. I certainly never ran across one.

[oldskool]

Since this thread was started nearly 10 years ago, I'll update it a bit.

Since the thread was posted, there have been two 10 sec '67 Birds. Most all Stock/SS racers know about Randi Lyn Shipp's '67. She's won at least 7 nat events, may be 8 now. I forget.

And, most Pontiac Stock/SS racers know about Bryan Phillips's '67 Bird. It also runs 10's & has qualified near the top, at lots of races. Don't know if he's won a nat event or not. But he has won some smaller races.

Joel Larkin has the only '67 SS Bird I know of that's still active.

BTW, notice in pic #4 that Randi Lyn's '67 400 Bird has what appears to be the 326HO stripes.

[oldskool]

Continuing with the subject of the thread, I have pics of some '67 birds from back in the old days.

The 1st 5 are of Stockers. #5 is OHC Six powered.

Roy Gay, of Gay Pontiac in Southeast TX, drove a '67 Bird in Super Stock. Don't have any record of times turned or race results.

Another '67 was driven by Tony Knieper. Looks like it may have been sponsored by Gratiot Auto Supply & Stan Long Pontiac. Pic caption says the car held a nat record.