Pontiac’s Forgotten Drag Weapon Had 45 More HP Than They Admitted
Lying, fibbing, doctoring the numbers. Your parents used to tell you it was wrong, and then spanked the daylights out of you when you did it anyway. During the muscle car wars, there was nobody around to spank the snot out of American OEMs for treating official horsepower figures like a suggestion. Well, there was one sanctioning body that revealed all. Want proof? Look no further than what Pontiac was up to in the late 1960s.
NHRA Stock & Super Stock: A Racing Crucible Where Lying Was Acceptable
Sanctioned drag racing was nothing short of a circus in the late 1960s. To dominate NHRA-sanctioned competition, you had to play the game, and the rules were based heavily on advertised power to weight ratios. This created a massive loophole that automakers were more than happy to exploit. Pontiac engineers quietly developed a highly specialized V8 engine package intended specifically to conquer these drag racing classes.
In the equally competitive realms of NHRA’s Stock and Super Stock classes, OEMs from all of America’s top brands routinely lied through their teeth to gain a favorable starting handicap. Because class placement was dictated by a strict power-to-weight ratio, a lower advertised horsepower number meant dropping into a slower class where a vehicle could obliterate the competition. It became an open secret in Detroit. Engineers would build a fire-breathing race motor, slap an obviously bogus horsepower figure on the official brochure, and send it straight to the staging lanes.
American automakers may have fancied the NHRA’s tech inspectors dumber than a box of rocks, but they still needed to keep the grandstands full. Instead of banning obvious cheaters and wrecking the gate draw, the NHRA started testing the cars themselves and issuing re-factored horsepower ratings. If an automaker claimed their engine made 300 horsepower, but the trap speeds proved it was making far more, the NHRA bumped the car up to a faster class based on its true potential. As far as Pontiac was concerned, it was an open invitation to get cheeky.
Pontiac Bends the Rules: Gets Away With It
To exploit the NHRA rulebook and laugh while doing it, Pontiac developed a drag-optimized 400-cubic-inch engine package and officially rated it at a paltry 340 horsepower. Pontiac absolutely knew what it was doing, and so did the tech inspectors—because as we’ve established, they weren’t idiots, even if every OEM in America treated them like they were. When the sanctioning body finally got its hands on this backdoor power plant, it immediately re-factored the rating to a much more accurate 385 horsepower.
The secret to that massive, hidden power bump came down to airflow. Engineers transitioned away from restrictive D-port cylinder heads and introduced a brand-new round-port design. This single mechanical modification increased exhaust flow by roughly ten percent, allowing the heavy cast-iron block to breathe significantly better at the absolute top of the rev range. To capitalize on those high-flowing heads, the factory installed a radical 041 camshaft with an aggressive duration profile, incredibly tough forged pistons, and a virtually indestructible Armasteel crankshaft.
The resulting V8 was a high winding screamer capable of safely reaching a 6,400 rpm redline. To keep the engine spinning in that optimal power band for the entire length of the drag strip, a standard street gear simply would not cut it. Buyers who knew exactly which option boxes to tick could order this mystery Pontiac with a massive 4.33-to-1 rear axle ratio. It was a gear so incredibly steep that it made highway driving practically unbearable, but frankly, who cares? The end result was a beast on the track, and that’s all that mattered.
’68 Pontiac Firebird Ram Air II: Pure NHRA Audacity
Introduced as a mid-year running change to replace the outgoing Ram Air I setup, the very first purpose-built production Ram Air II Firebirds rolled off the assembly line on May 20, 1968. From day one, they were playing fast and loose with power figures. To understand just how blatantly Pontiac was fudging the numbers, you only had to look across the showroom floor.
The heavier Pontiac GTO received this exact same Ram Air IIengine, but was rated at a much more believable 366 horsepower. Pontiac artificially lowered the Firebird rating to 340 horsepower on paper to appease corporate edicts regarding weight-to-power limits in lighter vehicles. It was a blatant lie, but it was exactly the kind of corporate loophole-jumping that made homologation muscle cars so iconic.
Because this package was an over-the-top, backdoor track weapon, production numbers were microscopic. Pontiac built only 110 units of the Ram Air II Firebird. Naturally, the majority of dedicated drag racers wanted to bang through the gears themselves, meaning 98 of those cars were ordered with a four-speed manual transmission under Code WU. A mere 12 cars received the automatic transmission under Code XT, making any Firebird Ram Air II an absolute diamond in the rough.
Big Power, Absurd Value
Given their microscopic production run and purpose-built racing pedigree, finding an authentic 1968 Ram Air II Firebird today is nearly impossible. These cars were bought to be thrashed, and most of them never survived much past the 1970s. That said, in 2023, the very first Ram Air II Firebird ever produced—one of those mythical 12 Code XT automatics—hammered for an astonishing $225,000 at a Mecum auction.
Originally ordered strictly for NHRA B/Stock competition by an Ohio dealership, the stripped-down race car stands as a testament to Pontiac’s backdoor racing program. What started as a corporate lie to game the NHRA rulebook ultimately birthed one of the most potent, highly sought-after pony cars in American history. It was bold, it was brash, and its foundation rested on a bed of lies and bluster big enough to hold the national GDP, but it was utterly wonderful.
Source: Mecum Auctions
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