Last year, I told the story of my (formerly) Fire Engine Firethorn Red 1977 Pontiac Grand Prix, a car that has been in my life in one form or another since I was 10 years old in 1983.
As a quick recap, the car became mine in 1989 and was my solid high school ride for the next year and a half, carrying me through all the adventures of an otherwise uneventful, awkward suburban high school boy life of school, sports, activities, jobs and dating. In the fall of 1990, I replaced the tired 350 smog engine with an equally tired-but-bigger-is-better 455 culled from an otherwise clean 1973 Safari wagon in a junkyard in Eastern Long Island. That 455, after being swapped in, swapped out, swapped back in, sitting for 17 years, put back into service, blew up and now has been rebuilt in 2012 to pre-smog specs, making it a very torquey, fun-to-drive car that pulls hard, smooth and linear, like a freight train. A suspension rebuild and fresh brakes make it a corner carver a lot more fun tackling interstate on-ramps.
But it still looked like a giant bag of red ass.
Several years ago, I located a nearly rust-free 1976 Grand Prix that was a theft recovery car with no title, a seized engine and a near perfect red bench seat interior that matched my car. It was even Firethorn red that had faded in a similar pattern as my car.
I de-rusted the body with the fenders, doors, bumpers, hood and deck lid from the ’76 parts car, which is pretty much every panel that is bolted to the car, and luckily, the structural panels like the floorboards and quarter panels were pretty rust free, requiring only some minor patching and scuffing that I was able to do at home. I aligned all of the panels as best as I could but I’m no body man (look at the gap between the hood and the grille header panel in the picture above; I’ll take the credit for that)
I had it set up with my favorite bodyshop, the one that painted my Charger and several of my other cars over the years, to bring it in for paint back in the spring time, but life being what it is and a management change at the shop pushed the date of the Pontiac’s paint job back to December.
I love bringing these old cars back to life.
I brought the car into the shop just before Christmas and within a week, the quarter panel that I had smashed in the spring of 1990 when I bounced it off a tree in the woods was knocked out and smoothed over. The grille header panel on 1973-77 Grand Prixes is fiberglass and mine was cracked in several places and banged up in others. After hours of sanding, smoothing and straightening out 43 years of smashes, thrashes and hits, Sam the painter laid down a gorgeous coat of Dodge’s Octane Red over a gold base, which is very similar to the original Firethorn Red but is much more brilliant. I had him leave the door jambs and inside of the trunk in the original paint for reference, just in case I ever decide to paint it the original color (not likely.)
…And finally, my high school hand-me-down beater is now a shiny new car and this is what I drove out of the shop in the last week of January.
It’s the end result of a 13 year, drive-as-you-go restoration. Every major component of the car is new, rebuilt or replaced. I still need to do a few minor things; the bumpers and chrome now look horrible against the new paint so I need to shine them up and there is some chrome peeling off of the rear bumper that I will need to get to. I lost misplaced the passenger side rocker molding; I need to find it and then I will mount them on both sides on the car. The front bumper fillers on both my car and the parts car were unusable. They are not reproduced and nice originals are near unobtainium so I left it off and had them paint the top of the inner bumper frame as a stop gap measure until I can find a decent replacement.
I added a couple of touches as a nod to its pimptastic ’70s personal luxury coupe heritage; an NOS Radio Shack AM/FM/8 Track to replace the occasionally working Jensen cassette deck that my brother installed in the ’80s, modified with an AUX input, making it possibly the only car stereo with an 8 Track player that you can also plug your phone into, and I made a reproduction 1970’s era USCG base parking decal. That GRAND PRIX script license plate? I bought it at a custom car show back in the 1980s, just after my brother bought the car.
But, going against the grain of its ’70s PLC heritage, it’s not broughamy. There’s no vinyl top. There’s no pillowy velour mouse fur interior, just a vinyl bench seat straight out of the ’60s. It has round gauges with actual readouts, not idiot lights. I pulled the ‘extra’ trim, most notably the awful plastic door edge molding that ran the length of the car. Nothing to detract from the great factory Bill Mitchell lines on this car; cars aren’t ‘styled’ like this anymore. The painter also redid the factory pinstripe in gold to accent the body lines.
Now I’m going to use a phrase that’s rarely used to describe a big mid-1970s American coupe.
It’s really fun to drive.
Yes, really. Like I mentioned, the 455 is built to 455 HO pre-smog specs, but with a pump gas-friendly 9.5 compression ratio. It has ported and milled 6X heads and a custom ground RV-style cam that is lopey but not obnoxiously rumpity that runs fine in traffic with no vacuum or overheating problems. I run an Edelbrock 650 carb with an aluminum Performer intake, 1970 GTO exhaust manifolds and a 1973 GTO true dual exhaust. The original Turbo 400 transmission has a shift kit and it still has the original highway ratio gears. It’s easy to get a 455 to run right, even in a 3800 lb car. The suspension is mostly stock and I added a factory rear sway bar. It’s not an ACR Viper but it’s not a wallowy ’70s barge either; I’ve said it for years and have proved it with this car; it doesn’t take much to make these ’70s cars run right and I have no problem comparing it to my Charger police sedan in terms of handling and acceleration. It has surprised more than a few modern hot cars.
Future plans for the car: I threw out all of the air conditioning components back in 1990. 1970s air conditioning systems were heavy and power-robbing (but when they worked, they worked!) and the compressor caught fire sometime back in the ’80s when my brother had it so it didn’t work anyway. So, at some point, I’d like to add a Vintage Air system since I do drive the car a lot. It typically gets around 13 mpg; not bad for a 455 with a 3 speed transmission in a 2 ton car but it can do better and go faster; a Turbo 700 is on my wish list.
My high school playlist is awesome, dominated by Rush, Van Halen, Ozzy, Metallica, Guns ‘N Roses, AC/DC, Dio, Judas Priest, Iron Maiden, Aerosmith, Tom Petty, The Smiths, The Cars; pretty much anything with a guitar. I listened to a lot of The Cult in high school too, and their Love, Electric and Sonic Temple albums were in heavy rotation in my car stereo when I was in the Pontiac. When I need to forget 2020 for awhile, I go out to the garage, fire up the 455, plug in the playlist, find an open road and get lost in my youth for awhile.
Old cars can do that.
Nice! I’ll bet it’s great out on the highway. Weird questions, but are you running an adapter so you can use an Edelbrock? Any reason you don’t run a Quadrajet?
No adapter because I’m using a Performer intake to match the carb. Not long after I dragged the car home, a friend of mine gave me the intake since he had it just laying around and wasn’t doing anything with it. Then a few years later, another friend had a big block in his ’71 Chevelle that he was converting to an LS engine and sold me the carb cheap so by the time I was ready to put the engine together, I had a matched carb and intake It runs fine but the Edelbrock doesn’t have the same kick in the pants that the Q-Jet has when the secondaries open up; it starts easier with the Edelbrock though.
I don’t pretend to be an expert, but that 650 Holley flows 100 cfm less than the stock Q-Jet. The Q-Jet also has tiny primaries and would probably get better mileage when you don’t have your foot in it.
The original engine was a 350 and if I remember correctly, a Q-Jet on a ’77 350 was either a 600 or a 650 but youre absolutely right on the primaries on a Q-Jet vs the Edelbrock carb.
As far as I know, all Q-Jets were rated at either 750 or 800 cfm; the 350 probably came with a 750. I’m sure you’d get a little extra mileage and power, but then you’d have to go through the setup and expense of swapping carbs. I’d probably just leave what you have.
What an amazing tranformation! I’ve long opined that Colonades are better cars than the more-vaunted GM midsizers of the previous generation once you replace the early attempts and smog reduction, seatbelt interlocks, and the like and take advantage of the intrinsically better handling and more comfortable seats and nicer surroundings. This car proves my theory, and likely at a much lower price than a similar car base on a ’70 GTO would have.
That profile shot really accentuates the lines of the car. Take away the vinyl side molding, the vinyl roof treatment and the whole character of the design comes out. The shape of the greenhouse is much more graceful than it ever looked with a toupee in place. I’m thinking the Colonnades are going to be very hot in the classic car hobby in the coming few years. Our generation drove them as hand-me downs and beaters in our youth, but the relative affordability of them combined with the styling and easy access to parts, etc should make them hot commodities, IF collector cars even continue to be a viable hobby for too much longer. They weren’t terrible to drive back in the day, but I’d love to drive a tightened-up, buttoned-down version like this.
Great story!
As far as handling goes, I’d argue that you started with a solid foundation since GM really was the leader when it came to domestic car handling.
The red repaint and pinstriping, sans vinyl top, really brings out the lines in this Grand Prix. Hope you get many more years of enjoyment out of it, it sure looks sharp!
You have made one beautiful car Dan. With great respect. A sharp looking car. I never considered one of these as coming from the colonnade family, but there you have it, a real beauty. Point this in a straight line, and go. Enjoy your ride like it’s new again.
Beautiful, just beautiful!
I like how the lead-in picture of the pinstriping shows the car in its “sealed for your protection” mode. 😉
If you deem them worthy of sharing: Any interior/seat/dashboard instrument cluster, pls?
ask and ye shall receive
I actually prefer bench seats to buckets
Agree!
If you are about my size (6-1, 48 Long suit) some bucket seats tend to pinch in the hips and shoulders.
Next door to the scrapyard where I worked in Jasper, AL was “Hill Sales Co.”, a super old Hardware/General Store that also sold tires, all kinds of candy & other miscellaneous nitnoids. My father & I would walk over a couple times a day for a Grapico, Moon Pie, & a quick chat with the people that ran the place, especially in the summer months. A lot of the stuff in that store was old stock and had been there for years despite the low pricing, so it was always fun just walking around in there…not to mention hearing what came across the Police Scanner that was always on.
There was a rotating wire rack by the register that had vanity tags including the red “Grand Prix” tag like the one on your car. The script appealed to me and the engine-turned finish was actually holographic. After looking at it long enough, it eventually came home with me even though it wouldn’t “go with” my green/white basket-case ’73 GP. Several years later, I ran across another one of these tags a little worse-for-wear but attached to something very special which happened to also come home with me. It makes me wonder if the original owner picked that tag off the same rack at Hill Sales.
This is the only other example I’ve ever seen….kind of a nice coincidence if you want to call it that. It brings back memories of a period that I now realize was the best time in my life. Thanks. Your car looks good, btw.
This is my favorite Grand Prix year. Yes, over the 63, yes, over the 69. I always had an attraction to them and in my opinion the best styled inside and out GM of the 70s. The cockpit dashboard is perfection!
Admittedly, my opinion is colored by the fact that the Blues Brothers was one of the few R rated movies my parents let me watch at a young impressionable age due to my interest in cars and music, and Carrie Fisher’s ride was a battered 77 in the same firethorn red. I remember wishing that car got more screen time, it had such exotic lines even in a beat up state.
TBB is one of my all time favorite movies. They never say in the movie or in the deleted scenes why the car was so beat up despite it being only 3 years old at the time
“They never say in the movie or in the deleted scenes why the car was so beat up despite it being only 3 years old at the time.”
While visiting Chicago in the seventies and eighties, I saw that battered look on many cars. It wouldn’t surprise me that the producers either roughed up a car to look more authentic, or bought the car as is from a local “buy here pay here” lot.
I feel like there was a missing scene explaining how this young jilted lover got her hands on the various military spec weapons – fully automatic assault rifle, rocket launcher, remote detonated mines, flame thrower… – possibly using her Grand Prix to ram through a closed surplus storefront and raid the “back room” ala Commando..
But yeah, regular Chicago driving will do it too.
Another big Blues Brother’s fan here. When LTDan was writing about the repairing the damaged front fiberglass header panel, the first thought that popped into my head was this image:
Paint looks great and the color selection is fantastic. Nicely done.
Geeze, that looks terrific!
Love Addition Machine
Soul Shaker!
Awesome read as always LTDan! The car looks fantastic, and the colour choice is really good too. I love the detrimed look. As you saw with my Malibu, my dad did the same thing when he repainted it (following my advice). I noticed you are missing the plastic quarter window trim. I am assuming they went missing or fell apart over the years. This is one piece of trim they really cheaped out on the Colonnades. They should have been stainless. My Malibu’s are shot (they are barely holding together) and I need to replace mine. The repros are crazy expensive for a piece of plastic. I eventually need to invested in a decent paint job on my Torino at some point. The paint is about 25 years old and it was never a great paint job to begin with. Like you, I can get by on basic body work, but I am far from a body man. You’re lucky to find a good body man for old cars. They are hard to come by these days.
Thanks Vince! No quarter window trim on the non-vinyl roof cars, which is a nice bonus as they are 40+ years old and GM plastic doesnt age well. If you want to ship your car down here, my guy will take care of you!
It is interesting that nobody has done repros of those window trim pieces out of stainless or aluminum, something everyone seems to agree is how they should have been done to start with.
73s are stainless moldings. 74-77 from factory are plastic. A set just sold on eBay for $125 last week. That’s a deal. They’re in demand. The repo parts of course are listed as73-77 because they’ll fit. I own 5 colanade cars so l am always looking at them. Recently I looked at a 73 Buick Regal . It had the stainless mouldings as does my friend’s 73 Monte. Happy hunting.
Looks good- May I suggest a complimentary Fire Thorne Colonnade wagon to complete your fleet?
https://barnfinds.com/like-new-16k-1975-pontiac-grand-lemans-safari/
I have literally no more space (and no more funds!) for any more cars, which is good because I would love to to have that wagon.
I agree- Your GP has pizzazz, but there’s something about a wagon.
Beautiful car and a great story. I really liked the Colonnades when they came out but time hasn’t done much to boost or even maintain their reputation, and I do admit to liking the next generation, smaller A/G cars, so they have dropped in my estimation as well. Therefore it’s good to read some praise for these cars; here in California there are a few years that are smog-exempt so maybe a Colonnade El Camino could be in my future. Not that I want to drive a gross polluter, but the exemption makes some parts choices much easier.
Thank you all for the kind words, I very much appreciate it!
You mentioned in your article that the chrome was peeling on the rear bumper. I owned a 1977 LJ and the the exhaust was causing the chrome to peel on the right side of the rear bumper.
How are the steel pieces that the bumper face bar bolts to on your car? Mine was a massive amount of rust. It’s a wonder the whole assembly did not fall off. I had to replace not only the face bar but the inner reinforcements and the hydraulic mounts that attached to the ends of the frame. I have seen many ’74 to ’77 colonnades with a 2 X 6 serving as the rear bumper after the factory one rusted away and fell off.
my car is factory undercoated so the underside is pretty solid and intact. I do remember many Collonades with no rear bumpers back in the 80s and 90s though, especially in New York state
Am I the only one that got the KISS reference?
Always liked the 70s and early 80s Grand Prix.
I wondered if anyone would get that! Im not in the KISS Army but that album came out at around the time I got the car and I like some of their hit songs so I picked it up and listened to it often in the car
+1
What a kick-ass cruiser! Love it.
While I am normally a “paint it an original color” kind of guy, I like the new color a lot better than the original, which was one I was always kind of lukewarm about.
These were good driving cars, and your 455 probably solves the only real problem these ever had. Kudos on the way you have kept her going.
Like XR7Matt, the ’77 is my favorite Grand Prix of them all. A friend of my mother’s had a ’77 GP back in the day that was externally identical to yours. That was an amazing car.
It’s amazing what some paint can do and it’s done a tremendous amount for your GP! With the 455, it sounds like you’ve made it run and drive as it was meant to do!
Many happy miles.
Car looks lovely, great job!
Great results! Looks fantastic with fresh, high quality paint. I like the color, it suits the car really well. I was looking forward to the repaint after your previous article. You are right that it crys out for new bumper filler panels now. I think I’ve read you can get reproduction ones for Caddy’s, perhaps they could be modified to fit?
One question. I used to own a 76 Lemans. It had bench seats of course, and while comfortable, one thing that bugged me was the steering wheel was slightly off center to the left from where the center of the seating position was. Does yours have that? Was that the case with all Collonades?
thanks Jon. My wheel is centered and pretty much always has been, sounds like your car may not have been aligned properly
I dont mean the angle of the wheel, I mean the actual steering column sat to the left (more outboard) from the center of seat. So as I sat in the seat, it wasnt in line with the centerline of my body.
Looking good! Enjoy your ride!
LT Dan, it looks fantastic!
Well look at this car. On Monday I had to go drop off a flat tire for repair and as I slowly wound my way around the very large building, broken down into many car businesses, I come to the exit and right there is sitting a 1970 Grand Prix in green no vinyl roof. Original blue CA plates too. Of course no camera with me.
Discovered your articles just now, and want to thank you for sharing a great history. I also have a 77 LJ which had to be saved – just finishing up the final details and hoping to be able to drive and share it next spring. Did they all get scrapped such that the highest volume of sales ever means now that finding parts is so difficult?
Allen
Halifax NS