Vintage Car Life Review: 1967 Pontiac GTO Ram Air – “King Of The Supercars”

Front 3q view of a Mariner Turquoise 1967 Pontiac GTO hardtop with a black vinyl top and redline tires on styled wheels

1967 Pontiac GTO / Mecum Auctions

 

The Pontiac GTO arguably started the big-engined intermediate Supercar craze in 1964, and it was the one to beat in this hotly contested segment. Its performance didn’t always live up to the hype, but in October 1967, Car Life found that a 1967 GTO with the rare Ram Air engine was no paper tiger — it was fast enough that they proclaimed it “King of the Supercars,” although they found it left much to be desired in real-world use.

Car Life, October 1967, page 87, first page of road test of 1967 Pontiac GTO Ram Air, with three B&W photos of the car on a drag strip with the headline RAM AIR GTO in fuchsia and the subtitle "Hail to the King! The Super/Supercar"

Auto enthusiasts sometimes get very ornery about these car magazine road tests of vintage domestic cars, complaining that the testers held the cars to unrealistically high standards by expecting them to be able go around corners without dragging the door handles on the pavement, complete a panic stop without ending up sideways, or descend a steep mountain grade without running out of brakes before the bottom. Car Life began this test by conceding:

Any automobile must be evaluated with respect to product intent. This intent may be specifically stated by the manufacturer, reinforced by advertising. or determined by vehicle testers. Fair evaluation of a vehicle must include determination of the vehicle’s ability to meet intended criteria. Perhaps more than the majority of automobiles, the Ram Air GTO requires this sort of definitive inspection.

Pontiac claimed that the 1967 GTO was “The ultimate driving machine” (with no apologies needed to BMW, which didn’t adopt that now-trademarked slogan until the 1970s), but the main point was to look good and go fast for a not-too-outrageous price. Look good, it surely did: Car Life remarked, “If styling, both interior and exterior, is an important criterion, GTO is a winner,” and I would have to agree. In fact, for my money, this is the best-looking GM intermediate of the period, and with prices starting at $2,935 for the two-door hardtop, it was practically a bargain.

Left front 3q view of a Mariner Turquoise 1967 Pontiac GTO hardtop with a black vinyl top and redline tires on styled wheels

1967 Pontiac GTO hardtop / Mecum Auctions

 

As for its performance, Car Life said:

Does the Ram Air GTO accomplish intended goals toward which it is aimed? Most definitely and emphatically, YES! Lumpy idle and harsh ride, qualities that would be unsatisfactory in a family sedan, become acceptable, even desirable in a full-blooded Supercar. And dragstrip elapsed times of 14.5 sec., with speeds in the 101–103 mph range, definitely qualify an automobile as a Supercar. Such performance assumes even loftier status when it is emphasized that these numbers were achieved in normal fashion, vehicle in completely standard road trim, and nearly 400 lb. of driver, passenger and test gear aboard.

One pass through the lights with driver only produced an e.t. of 13.9 sec. at 102.8 mph. Dragstrip potential is sure to be in the bottom 13-sec. bracket with slicks, open tuned headers and all power and emission control equipment removed.

The figures in the data panel below give a quarter mile time of 14.5 seconds at a terminal speed of 102.0 mph. Mark that terminal speed well, because like top speed, it’s one of the clearest indicators of a vehicle’s actual developed horsepower. Elapsed times and 0 to 60 mph or 0 to 100 km/h times can depend on a lot of factors, from traction to gearing to shift points to driver technique, but the actual speed through the traps is largely a function of power-to-weight ratio.

Right side view of a Mariner Turquoise 1967 Pontiac GTO hardtop with black vinyl top, redline tires, and Rally II wheels

1967 Pontiac GTO hardtop in Mariner Turquoise with the optional black Cordova vinyl top and Rally II wheels / Mecum Auctions

 

The GTO’s trap sped makes a revealing comparison with the 1967 Plymouth GTX hardtop Car Life had tested earlier in the year, which weighed 50 lb more than the GTO and had a 440 and TorqueFlite. Although the 440 cu. in. (7,206 cc) Chrysler RB engine claimed 15 hp more than the GTO’s 400 cu. in. (6,554 cc) V-8, Ram Air GTO was far more highly tuned, and significantly faster. Car Life recorded a trap speed of 97 mph for the GTX, which was formidable enough in most leagues, but the GTO was 5 mph faster. This meant the GTO was considerably more powerful, and undoubtedly more powerful than its 360 hp gross rating suggested — the 360 hp figure was strictly a procedural fiction, dictated by GM corporate policy limiting rated output to no more than 1 advertised horsepower for each 10 lb of base curb weight.

Car Life, October 1967, page 88, second page of Ram Air GTO road test, with B&W photos of the front 3q of the car, the dashboard, the functional hood scoop, and the Hurst Dual-Gate shifter

Most earlier GTOs had lacked the stopping power to match their straight-line go, but for 1967, the GTO and its GM intermediate cousins were finally available with front disc brakes, which helped a great deal. Discs weren’t standard, which they should have been — they cost $104.79 on a 1967 GTO — but Car Life found that they allowed very respectable deceleration rates (29 ft/sec.²). Unlike some early disc/drum systems, they were easy to modulate to avoid rear lockup, and the spec panel says they survived eight stops from 80 mph with minimal fade, an outstanding performance for the time. With the standard 9.5-inch drums, a single 80 mph stop heated the brakes enough to cause severe fade.

Because I’m sure someone else will point it out if I don’t mention it, by the time this article originally appeared in print, the 1968 GTO was only days away — Pontiac introduced its 1968 models on September 21, 1967 — and Car Life editors had already driven it. If you’ve never worked in this kind of magazine publishing, when an article is written doesn’t generally have a strong relationship with when it actually appears in print, and production lead times in the pre-computer days were longer, so this road test was undoubtedly conducted many months earlier than it ran. Thus, Car Life published a test of the 1968 Ram Air GTO in May 1968, just seven months after this one.

Dashboard of a 1967 Pontiac GTO with black vinyl upholstery, Rally instruments, woodgrain wheel, woodgrain trim, center console, and Hurst Dual-Gate shifter

1967 Pontiac GTO with center console, custom sport wheel, rally gauge cluster, and Turbo Hydra-Matic with Hurst Dual-Gate shifter / RK Motors

 

The 1967 GTO did have an attractive interior treatment, but the complete instrumentation mentioned in the text was still an $84.26 option, which gave you water temperature and oil pressure gauges in the right-most binnacle and an 8,000-rpm tachometer in the second right pod. Car Life found that the tachometer wasn’t terribly accurate — it was 200 rpm slow at 5,600 rpm, a dangerous margin of error with a high-strung engine, and the reason why it’s common to see aftermarket tachometers in these cars even if they have the optional rally gauge cluster.

Instrument panel of a 1967 Pontiac GTO with Rally instruments, viewed through the steering wheel rim

Rally gauge cluster was an $84.26 option in 1967 / RK Motors

 

Turbo Hydra-Matic was another new option on the GTO for 1967, and quite pricey: With the hotter engines, it listed for $272.56, the most expensive option on the car. When console-mounted, the shift lever had the new Hurst Dual Gate controls, which provided a second quadrant to the right of the normal shift pattern, allowing sequential manual control of gear changes with a positive latching mechanism. Car Life called it “one of the finest controls ever tested by CL,” offering “positive, effortless, and genuinely pleasant” manual selection.

Hurst Dual-Gate shifter in a 1967 Pontiac GTO with center console and woodgrain trim

Hurst Dual-Gate shifter for Turbo Hydra-Matic / RK Motors

Car Life, October 1967, page 89, third page of Ram Air GTO road test, with a B&W rear 3q photo below the main text

It’s not clear from the spec table if the test car had the optional “ride & handling” suspension (a mere $3.74 if ordered on a new car), although that is implied by the text description:

Ride and handling of the GTO are best described as firm and stable. Low speed ride quality was harsh, particularly on broken pavement or tar strips. Handling qualities included a reasonable amount of understeer at low speeds, near-neutral steering al high speeds and high cornering forces, and sufficient power available for power oversteer at nearly any speed. The Firestone Super Sports Wide Oval tires (fitted to all GTOs) supplied adequate traction for brisk takeoffs, and proved stable when cornering near the limit of adhesion. No axle hop on acceleration or braking was encountered. In general, the GTO demonstrated stability and handling consistent with its high performance level.

You’ll notice that the turquoise car in the color photos has a rear anti-roll bar, which was a previous owner’s aftermarket additional. Although the 1967 Oldsmobile 4-4-2 had a rear anti-roll bar that could easily be adapted to a GTO, Pontiac didn’t offer this as a factor option, and the GTO’s handling probably suffered a bit as a result.

Left rear 3q view of a Mariner Turquoise 1967 Pontiac GTO hardtop with a black vinyl top, with a rear anti-roll bar visible below the rear axle

This car’s rear anti-roll bar is not stock, and wasn’t fitted to the CL test car / Mecum Auctions

 

Pontiac first offered a functional cold-air scoop as a rare dealer=installed option in 1965. The original plan had been to offer the cold-air hood along with a new dual four-barrel carburetion option. The dual-quad engine was canceled prior to production, but since Pontiac had developed the pieces needed to open the otherwise-cosmetic hood scoop and mate it to a foam-insulated tub around the carburetor(s), they offered this as a dealer kit beginning late in the 1965 model year. This didn’t include any engine changes, but from February 1966, this option added stiffer valve springs and a hotter camshaft with longer duration and more overlap. Officially, neither the new cam nor the cold air intake added any power, but in the real world, the package added about 3 mph to quarter-mile trap speeds. For 1967, this became the L67 Ram Air option, which was now combined with a big Rochester Quadrajet four-barrel carburetor rather than the previous Tri-Power.

Ram Air hood scoops on a Mariner Turquoise 1967 Pontiac GTO

Functional hood scoop was part of the L67 Ram Air package, and had previously been available as part of a dealer-installed kit / Mecum Auctions

 

“Ram Air” was something of a misnomer because the shape and position of the scoop didn’t allow any meaningful ram effect — it could only pick up slow-moving boundary layer air clinging to the car’s hood. Boundary layer air was still significantly colder and denser than under-hood air, however, which was worthwhile. Combined with the Ram Air package’s hotter camshaft, a rough guess would be something close to 20 percent more real horsepower than the GTO’s 360 hp H.O. engine. (Factory power ratings, gross or net, are corrected for temperature and humidity, so for once the benefits in the real world might have been significantly greater than on paper, even if Pontiac had published accurate net ratings for its 1967 engines.)

Frame and front wheels of a 1967 Pontiac GTO in a workshop, with the Ram Air 400 engine installed

Ram Air engine in a 1967 GTO undergoing restoration / RK Motors

 

The Ram Air package cost $263.30 in 1967 and required a 4.33 axle ratio, a ratio obviously tailored for the drag strip rather than the street. Despite the stiffer valve springs, the testers still noted worrisome valve float at about 5,600 rpm, which posed a problem:

With regard to float speed, it should he reported that the Ram Air GTO is somewhat unusual among domestic automobiles in that top speed in high gear must be approached with great caution. The 107-mph top speed, grossly illegal in almost every state, is not only potentially dangerous to occupants. but severe damage to the engine is likely to result. The Ram Air GTO carries a 4.33:1 axle ratio as standard equipment. This ratio enables the engine to easily exceed valve float speed in high gear — in a very brief elapsed lime. Most passenger cars are geared in such a way that they cannot exceed float speed in high gear without a very long sustained speed run. if at all. Not so the Ram Air GTO. Exceeding 5600 rpm in high gear was not difficult and, with the high gear acceleration potential of this automobile, drivers were able to run up to this speed without being conscious of having reached such velocity. A close watch on the tachometer definitely was in order to prevent engine damage.

Given their comments about the tachometer reading 200 rpm slow, the valve float speed became tricky business for drag racers. On the street in the U.S., few drivers were likely to spend much time at speeds over 100 mph, it was true, but an NHRA competitor with slicks and headers might well hit 107 mph at or just after the lights. The issue might have been specific to the test car (Popular Hot Rodding, testing what might have been the same car, experienced the same problem), but it was troublesome nonetheless. Royal Pontiac offered lock nuts that could be added to the rocker arms to hold the lifter plungers at the ends of their travel, making them function like solid lifters; that (and a set of less-worn valve springs) would seem a useful addition to an engine like this.

Car Life, October 1967, page 90, fourth page of Ram Air GTO road test, with B&W photo of the engine with the air cleaner removed and the first half of the data panel

Valve float wasn’t the only limitation of the Ram Air engine. Car Life warned:

The Ram Air GTO definitely is not pleasant for normal city traffic operation. The lest car surged, loped and generally ran miserably at part throttle up to 60 mph (3000 rpm). Part of this was no doubt due to California emission control apparatus on the test car, but part must be blamed on the high stale of tune of the Ram Air engine. Freeway operation was exciting. … Not so pleasant was the engine noise level. With a 4.33:1 axle ratio, 70 mph requires approximately 3500 rpm, an engine speed unpleasant to the cars and undesirable for engine wear.

California GTOs had the GM Air Injection Reactor system, which added fresh air to the exhaust manifold to reduce carbon monoxide and hydrocarbon emissions, but doesn’t seem to have paired well with the Ram Air camshaft, which had a lot of valve overlap: 76 degrees, compared to 54 degrees for the standard GTO engine and 63 degrees for the H.O.

Pontiac Ram Air 400 engine under the hood of a Mariner Turquoise 1967 Pontiac GTO

Like the CL test car, this 1967 GTO has the Air Injection Reactor fitted to 1966–1967 California cars / Mecum Auctions

 

Some sources insist that the Ram Air package included the heavy-duty radiator normally specified with air conditioning (an option that was not offered with the Ram Air engine), but even if it did — and I had trouble finding a definitive answer on that point — Car Life still found engine cooling inadequate:

Freeway operation invariably resulted in temperatures near the 200° F mark. Slowing for low speed traffic or complete shutoff resulted in a significant amount of coolant boiling off and gushing out the radiator overflow tube. This may not be a major complaint to the drag racer who frequently refills the cooling system with fresh water between runs, but it is a point worthy of emphasis for the prospective buyer who intends to use this automobile for daily transportation between its appearances in weekend competitive events.

Not mentioned in the text is the awkward subject of gas mileage. With the 4.33 axle, this was firmly in the “If you have to ask …” category: According to the data panel, CL averaged just 8.9 mpg, with a “normal” range of 8 to 12 mpg.

Car Life, October 1967, page 91, fifth page of Ram Air GTO road test, with a B&W photo of the trunk above the text and the second half of the data panel below

Car Life called the Ram Air GTO “a limited-purpose vehicle,” warning that it was “not a pleasant family transportation vehicle, designed for economical, comfortable errand-running and Sunday driving.” For most buyers — even most Supercar buyers — the milder standard or H.O. “Quadra-Power” engines were a better choice, combined with a more sensible axle ratio. On the other hand, the CL editors remarked:

The test GTO was, however, truly fun, simply a big kick to drive. The Ram Air GTO provided a level of acceleration beyond belief to anyone not accustomed to Supercars. An owner can be assured of a competitive car in its class at most dragstrips. Performance on the street requires careful handling to avoid dangerous situations or legal entanglements. A driver who is willing to accept the operational compromises inherent in such a high-performance vehicle, and who is capable of treating the potential of the Ram Air GTO with due respect will find this automobile an exciting, willing performer.

Their test car was laden with a variety of options, some of them more worthwhile for the street than the drag strip (e.g., power steering, at $94.79, and the front discs, at $104.79), some rather incongruous for a car of this nature, like power windows and a power antenna for the optional AM/FM radio. This brought the final tally to a hefty $4,422, which was no longer such a bargain. A drag racer only interest in straight-line speed could probably have kept the list price to around $3,700, although the car wouldn’t be terribly pleasant to drive on the street.

Front view of a Mariner Turquoise 1967 Pontiac GTO hardtop with a black vinyl top

1967 Pontiac GTO / Mecum Auctions

 

The Ram Air package was rare and specialized option. There were only factory 751 Ram Air cars in 1967, out of 81,722 GTOs built that year, although I assume quite a few more were created after the fact by adding the dealer-installed kit or some combination of similar modern parts (some of which work better than the factory parts, particularly, I am told, when it comes to exhaust manifolds).

GTO letter badges in the left front grille of a Mariner Turquoise 1967 Pontiac GTO

1967 Pontiac GTO / Mecum Auctions

 

However, ultra-hot powertrain combinations like this hold an outsize place in the collective imagination when it comes to muscle cars: Everyone likes to imagine having the hottest thing on the road, even if they wouldn’t really be very happy with it if they did.

Related Reading

Curbside Classic: 1965 Pontiac GTO – How To Create a Legend and Build a Brand (by Paul N)
Curbside Classic: 1966 Pontiac GTO – A Goat or a Mule? (by J P Cavanaugh)
Cohort Classic: 1966 Pontiac GTO – A Brief Talk With The Legend (by Rich Baron)
Curbside Classic: 1967 Pontiac GTO – No Supplements Needed (by Joseph Dennis)
Vintage Review: Olds 442, Pontiac GTO, Comet Cyclone GT, Chevelle SS396, Buick Skylark GS, Ford Fairlane GTA – Car and Driver Test Drives Six Super Cars (by GN)