Home » If Only Pontiac’s Sunbird Formula V8 Ran Like The Mini Trans Am It Appeared To Be

If Only Pontiac’s Sunbird Formula V8 Ran Like The Mini Trans Am It Appeared To Be

Sunbird Formula Topshot Ts

We give Malaise Era General Motors a lot of flak, but virtually nobody here at The Autopian denies the General at its junkiest still made some great-looking cars. Sadly, it’s difficult to disassociate the appearance of some of their products from what we know to be to be the harsh reality of their innate flaws.

One example of this came up on my screen a few days ago in the guise of the Sunbird Formula, and I was shocked at how exciting this late-seventies Pontiac appeared to be. If I weren’t a fiftysomething car nerd, I’d imagine this thing to be a pocket rocket to embarrass Milan’s finest. In reality, Italy and Germany had nothing to worry about – but despite its obvious flaws, that doesn’t mean the star-crossed Sunbird Formula isn’t worth taking a look at today.

Vidframe Min Top
Vidframe Min Bottom

Lordstown Lamborghini

Pontiac’s first real subcompact sport coupe had the deck stacked against it from the beginning. Just the fact that it was built on the dreaded H-platform shared with the new-for-1971 Chevy Vega was bad enough. We won’t beat that dead horse yet again, but if you need the CliffsNotes, I can give you the high levels of the low points.

Chevrolet Vega Hatchback Coupe 61
General Motors

First and foremost, the aluminum engine had linerless cylinders with a coating that didn’t really work, exacerbated by an inadequate cooling system. Also, the rust protection unknowingly left substantial areas of bare sheet metal. Combine that with the labor unrest at the Lordstown assembly plant, and you have a truly horrendous example of malaise garbage, one that was badge-engineered as the Pontiac Astre for 1975.

Cs Astre 1
General Motors

With Ford’s drastic downsizing of the Mustang in 1974, the old pony car was no longer meaningful competition for the Camaro and Firebird, so GM decided that a Vega-based coupe might make a better match for the tiny Mustang II. Say hello to the 1975 Chevy Monza.

Images Chevrolet Monza 1975 2
General Motors

The Monza “2+2” featured a design that critics said resembled (or even ripped off) the Ferrari 365 GTC/4 (below); if nothing else, to my eye it looked far better than the rival Pinto-based Mustang II. I’ve heard fans of the Monza whine that if it had actually come from Italy, the car geeks would be swooning over the styling; I reluctantly agree.

Left Front 365gtc
Ferraris Online (car for sale)

For 1976, Pontiac launched a twin of Chevrolet’s Monza Town Coupe dubbed the Sunbird. A sort of baby personal luxury coupe, the thing looked different enough from the Vega/Astre that a lot of buyers seemed to ignore that it still was powered by that same awful aluminum-block four.

76 Sunbird 2 12
General Motors

However, that’s not the version of the Monza that we enthusiasts wanted. No, the body style of this Vega-based coupe to have was that Ferrari-style hatchback which John Delorean apparently dubbed “the Italian Vega,” though I think he was referring to the appearance and not the reliability that more closely resembled cars from that nation at the time.

The next year, Pontiac and enthusiasts got their wish with the 1977 fastback-bodied “Sport Hatch” Monza 2+2 clone Sunbird that ditched the now-infamous Vega head-gasket-buster motor for the 2.5-liter Iron Duke that still helps deliver your mail every day of the week.

Sunbird Ad 1 2 13
General Motors

That engine was fine for the base models, but to compete with the Charlie’s Angels Cobra II, more power was needed under the hood. This is where the Sunbird and all of the H-body coupes also got off to a terrible start. You see, in the late sixties and early seventies, the rotary engine was going to be The Answer for the future; a motor that was smaller than the transmission it attached to and could rev to the high heavens as smooth as a dynamo. General Motors not only planned to go all-in with this Wankel powertrain but also intended to offer it to lowly American Motors for powering a curious-looking egg-shaped “compact” they’d been developing.

Sunbird Ad 5 2 12
General Motors

It’s been written about here before, but I’ll give you the spoiler: it didn’t work. The infamous rotor seal issue couldn’t be solved, and, worse than that, no amount of engineering effort was able to improve fuel economy from “abysmal” to “really bad” – a big deal when people started lining up around the block for gas in 1973. Naturally, the whole rotary program got the axe, but it was too late for the cars earmarked for this small, lightweight motor like the Monza and Sunbird to be drastically changed. That meant the plan for upgraded power in H-coupes was GM’s old and heavy V6 and V8 engines.

Naturally, this is starting to sound like the seventies GM we’re all ironically fond of.

So Many Combinations Of “Bird,” “Fire,” and “Sun”

In the malaise era, it was more important to look good than to feel good; if that’s the case, how did the Sunbird Formula fare? Other GM divisions received sporting versions of the H-body Monza, too; a couple of them have been the subject of Jason’s Glorious Garbage series, like the Buick Road Hawk.

Roadhawk Press Color
Buick

The styling accents were literally glued and riveted in place.

Roadhawk Detail
Wikimedia Commons

Chevy’s Monza Mirage edition suffered from similar painfully tacked-on customization:

77mirage
General Motors

By comparison, the top-of-the-heap Sunbird Formula looked pretty damn good. The family Pontiac split-grille nose added a Firebird-style appearance that looked better than the Monza’s deeply sunken headlamp buckets. The kamm tail and spoiler seemed very well integrated into the styling. Graphics were relatively subdued, and hey, can you ever do better than Pontiac honeycomb rolling stock? No, you cannot.

Sunbird Ad 6 2 12
General Motors

It’s sort of like a baby Trans Am, but with even tidier proportions and more low-key looking. To my eye, it was the best-looking of all the H-coupes by a long shot. There was even a notchback Formula for those who inexplicably didn’t see the charms of the hatchback’s appearance and utility.

1977 Pontiac Sunbird Astre (cdn) Page 03
General Motors

Sunbird interiors weren’t bad for the era, with decent-looking seats that admittedly probably gave up on your back before you needed to stop for your first bathroom break. The rear compartment was no place for adults, and you had the feeling of sitting deep in a pit regardless of which seat you were in, but that was kind of par for the course with seventies rear-drive sports coupes.

Sunbird Interior 1 2 13
General Motors

A full set of gauges and the Firebird-style sport wheel certainly were welcome additions, even if the nasty fake wood that even crept onto the radio knobs was not.

Sunbird Interior 2 2 12 3
General Motors

How could this thing miss? It had the looks, an available V8, upgraded suspension, and a price that should have made the Toyota Celica and Datsun 200SX go home, right? Remember what I said about star-crossed.

Rather Have A Real ‘Bird And Not Suzanne’s Vega

First of all, you need to temper the expectations aroused by “adding a V8.”  Starting in 1978, the Sunbird Formula offered a Chevy 305 as the eight-banger choice, but contemporary figures I could find list it as producing only around 145 horsepower – not much more than the 110 horsepower V6 (California V8s only pumped out 135 horse). For this so-called “power,” you got the added weight over a front suspension that was almost certainly never designed until the eleventh hour to accommodate an iron block of this size. These jumpsuit-clad ladies below appear to be pushing down on the back of the Sunbird to hide the sag of the car’s nose from the Chevy V8.

Sunbird Ad 2 2 13
General Motors

Wait, it gets worse! As Mercedes Streeter wrote, the V8 just barely fit into the Sunbird engine bay, to the point that you couldn’t really access the rearmost spark plugs back in the time when plug replacement was a far more frequent task than today. As she found in a quote from the New York Times:

The plug is very close to the steering column and sometimes the engine has to be lifted as much as onehalf inch in order to remove the plug, a spokesman said. “It would be easier to jack up the horn button and put whole new car under it,” said one disgruntled Chevrolet dealer service manager who did not want to he identified.

One thing The General could and did do was work with the chassis and at least make the Sunbird handle better than the original Vega. That they did, utilizing the torque-arm rear suspension introduced on the 1975 Cosworth-Vega that was essential to handling any kind of power sent to the axle. A beefier front and rear anti-roll bars and further tuning of the Formula’s Radial Tuned Suspension helped handling to the point that it could at least outmaneuver the Mustang II’s Pinto axle on leaf springs.

The biggest issue with the Sunbird Formula likely wasn’t the ability to handily beat the Mustang II; the bigger problem might have been its big brother in the picture below. Add the Formula package, the V8, plus a few more options to a Sunbird, and you’d be getting dangerously close to Firebird territory; not a full-on 6.6 Trans Am model, but at least something that didn’t require any excuses and would make your moustache-faced 1978 self look more respectable to the masses.

I do think that the notchback Sunbird Formula also muddied the waters, as well as the fact that Pontiac even offered an Astre Formula at the same time as the Sunbird Sports Hatch for a very brief time. Why?

Formulas Pontiac 2 13
General Motors

Sales suffered accordingly. From 1976 to 1980, Pontiac was able to move nearly half a million Sunbirds, but in 1978 the Formula only accounted for about 3,700 of those. I don’t have numbers for how many were V8-equipped or the sales for all of 1979, but I’ve seen accounts that it might have been in the three figures.

Pontiac might have made the best incarnation of the H-coupe, but they didn’t take the idea far enough. Even if they had, it’s likely that such a thing would have been unwanted by pony car and Japanese coupe fans alike.

Waiting For You To Wake It Up

Finding a first-generation Sunbird of any kind today is a nearly impossible task since most have been recycled into appliances and beverage cans several times over. Based on the few non-Formula listings I’ve seen, buying one off the showroom floor as “an investment” would have been a poor choice, since decent examples sell for no more than their price new in pre-1980 dollars at well under $10,000.

Still, that just adds to the appeal for most of us Autopians since you’d feel no guilt by modifying the crap out of one. That Chevy small block? You could double the horsepower of the stock Sunbird in your sleep, while adding modern rubber, shocks, a five-speed ‘box and other aftermarket bits to possibly yield a car with “go” to match the looks. Thankfully, modern spark plugs mean not dropping the engine to change them nearly as often. If you’re tired of seeing Burt Reynolds Trans Am clones or find those things too large for their own good, and you’re a person stuck trying to make a dollar out of fifteen cents like many are today, then a tweaked H-Body might be an amusing left-field classic for you.

Sunbird Ad 3 2 12
General Motors

Pontiac dropped the V8 option for 1980 (pictured above), the final year of this H-body Sunbird. Actually, it was an extended model year since their next subcompact wasn’t ready yet. The replacement car was a much more advanced front-wheel drive product that would obviously be more resolved, higher quality, better looking, and faster than the old Monza clone, right?

J2000 2 14
General Motors

No on all counts! Launched for 1982, the J2000 featured a 1.8-liter four under the hood with 85 horsepower to motivate a car rather heavy for its size due to cost-saving utilization of larger X-body parts. With a three-speed automatic, Road & Track’s hatchback coupe model took an agonizing 16.3 seconds to crawl up to 60MPH.

Ah, the malaise era: a time when no matter how bad you thought that you had it, the Big Three could hit you with something worse.

Pontiac Points: 63/ 100

Verdict: Yet another GM product that made the customer do the testing and finishing, but an easily-added 100 extra horsepower and suspension tweaks might be juice worth the squeeze today – but good luck finding one decent enough to start your project with.

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Beasy Mist
Member
Beasy Mist
53 minutes ago

I was born in ’81 and noticed cars from a pretty early age, and I cannot for the life of me remember a Sunbird, Monza, Vega, or any other variant out in the wild as a kid. Theoretically they should have been all over but I’m assuming NW Ohio road salt took them out?

Bill C
Member
Bill C
25 minutes ago
Reply to  Beasy Mist

’69 here. There were still Sunbird and Monza coupes (“Town Coupes” in case of Monza) around in my rural middle-lowish class high school parking lot. But they would have been the late models with the Iron Duke. A few had Buick 231 V-6’s. I recall a guy in 4-H in another town and a V-8 Monza (Matt, he was kinda hot). Neighbors daughter down the road had a 2.5 Sunbird. In true GM fashion, they had them sorted out right about 79-80 just before replacing them with the J-body, which had its own early issues, but later became the automotive cockroaches that us 80’s 90’s-era teens came to despise.

Last edited 24 minutes ago by Bill C
JumboG
JumboG
10 minutes ago
Reply to  Bill C

I remember Monzas and Sunbirds in the early 80s, but by the time I got my DL in 1986 they were quickly disappearing from the road – replaced by Chevettes and J-cars.

Grey alien in a beige sedan
Member
Grey alien in a beige sedan
1 hour ago

Someone out there somewhere has got to be thinking “You know what this little car needs? A fucking big block. Got any spare 454’s lying around?”

Sure, you’d have to alter the front end a good deal to get it in there, but such a massive engine in such a small car (bonus points if you top it off with a large displacement supercharger) is just the malaise hilarity we need these days.

Mercedes Streeter
Mercedes Streeter
1 hour ago

Yes, but it needs to be a 454 from the mid-’70s so that it’s making all of 275 HP to its name. Now that would be peak Malaise! 🙂

Jay Vette
Member
Jay Vette
30 minutes ago

More like 175 hp, really

Mercedes Streeter
Mercedes Streeter
14 minutes ago
Reply to  Jay Vette

Even better! lol

Spikedlemon
Spikedlemon
9 minutes ago

Isn’t Stellantis doing this now with the 5.7 Hemi?

Piston Slap Yo Mama
Member
Piston Slap Yo Mama
33 minutes ago

I can well imagine the barge-levels of understeer it would exhibit with big block weight up front.

Some LS engines are aluminum block, that would be my modern choice for going fast and preserving chassis dynamics.

JumboG
JumboG
9 minutes ago

Or you could put a 350-383 small block in there that won’t kill the handling and slides right in.

Dogisbadob
Dogisbadob
1 hour ago

Better off with a 78 Challenger or Sapporo

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Member
Username Loading....
1 hour ago

The Vega was such a good looking car, too bad it was let down by literally everything else about it.

Tbird
Member
Tbird
1 hour ago

Peak Malaise when the NHV benchmark Iron Duke is an engine “upgrade”.

Harvey Firebirdman
Member
Harvey Firebirdman
1 hour ago

I love how these and the Buick road hawks looked. But all I can remember about the Sunbirds is my dad telling me mom used to have one before I was even a thought and it was low on oil so she decided to add oil to it to the point it was blowing oil out everywhere and making a mess of the engine bay haha.

Anonymous Person
Anonymous Person
1 hour ago

I had the Monza Spyder version of this with the 305 and a Saginaw 4-speed manual.

The 305 wasn’t completely stock. The previous owner claimed to have done some engine work, and it had a Quadrajet on it instead of the 2-Bbl carb it was born with.

It was a fun car. Surprised a lot of Mustangs.

4jim
4jim
1 hour ago

It is a real shame that it took until the next decade for GM to realize the potential of the 3.8L V-6. A powered up one of them is this car would have worked better.

FormerTXJeepGuy
Member
FormerTXJeepGuy
1 hour ago
Reply to  4jim

I was just thinking a 3.8 Turbo in one of these would be a cool restomod

Eggsalad
Eggsalad
50 minutes ago
Reply to  4jim

I might be remembering wrong, but I think some of the late 2nd-gen F-bodies maybe did get the 3.8 Buick engine. It looks like the ’80 Camaro did, but only in California.

4jim
4jim
48 minutes ago
Reply to  Eggsalad

They put it in lots of things but did not make it sing for a long time after.

Beasy Mist
Member
Beasy Mist
47 minutes ago
Reply to  4jim

Exactly, my aunt’s ’80 Grand Prix had it and it was a 110 HP lump

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