Idle and Acceleration Sound Of A 1974 Trans Am SD-455

Idle and light-throttle takeoff of stock SD-455 through a reproduction Super Duty muffler from Waldron Exhaust.

[mikedeloach]

I’m going to make this short and sweet I’m sorry Pontiac and didn’t last long enough to get into the technology in their engines that they have today so they’ll get better gas mileage and you can put drivable thousand horsepower Chevrolet motors in them. But suck it up everybody else but this guy here. It is so cool to have a Trans Am posted with a Pontiac 455 motor in it. They were about three or four other Trans Am set I started listening to and reading about just before this one. And one they stated has a numbers matching motor in it yeah well that’s only because they started putting Oldsmobile engines in them so they had to be matching numbers to the car. But it was not a matching numbers Pontiac motor. Don’t get me wrong I love Chevrolet I had a 86 Monte Carlo super sport was my favorite Chevy that I’ve ever owned and if I still had it I’d probably put an LS engine in it. Duh. But I also had a formula 400 Pontiac. A 1976 he only had 185 to 195hp The day I picked it up. Six months later I took the catalytic converter off and replaced it with a straight pipe. It actually sounded at the pipes like a decent sounding car. I was working at a service station at the time when we actually used to pump gas for people. A customer of mine that was a GM technician drove in to the station one day and started talking to me about swapping carburetor parts. Metering rods secondary and even changing the spring in the distributor. We did all that that’s all I ever did to it. I took on a girl in a 75 Corvette on the way to the beach one day. After my speedometer needle went past 100, and that’s as far as it shows it went straight down to 6 o’clock on the dial. I went around the girl and she never caught up. Talk to her at the beach later and she told my girlfriend that she was a car person to not just driving daddy‘s Corvette. But her dad had done a couple things to her car. Since I didn’t have the exact miles per hour that I was going on my speedometer, I asked her how fast she was going when I pastor she said 126 mph. No I didn’t go flying by her, but I went by her at about five or 6 mph. So you figure right at 130 or 132. I don’t think that’s too bad for the small things I did to the car. Wish I had that car back. Point being if I had it back I would rebuild that motor and put as much power in it as I can get without it blowing up and then I put a supercharger on top of it. Screw with me then technology. OK I spend l’amour and gas. What the hell. Once again I thank you for having a true Pontiac. Thank you so much