CC Video Classic:  1982 GM HT 4100 Engine Promotional Video – World Record Razzie Winner?

Press image of a Cadillac HT4100 engine against a blue background

You may have heard of the Golden Raspberry Awards, also called the “Razzies.”   They’re an annual satirical award given in the entertainment industry – to the worst movie, actor, Director, etc. — the Anti-Oscar.  If ever there was an auto manufacturer’s video that deserved a Razzie, it’s this one from GM circa 1982, extolling the virtues and overall engineering excellence of the new Cadillac 4100 “High Technology” V8.

Press image of a Cadillac HT4100 engine against a blue background
Photo via eBay

 The “HT4100” — that “Standard of the World” powerplant that was infamous for various design flaws, including;

  • Head Gasket Failures:  The engine’s weak aluminum block and poorly designed head bolts would pull out, leading to head gasket failure. 
  • Leaking Intake Manifold Gaskets:  The gaskets between the intake manifold and the engine block would fail, allowing coolant to enter the oil. 
  • Camshaft Wear:  Poor oil circulation and the presence of coolant in the oil would cause the engine’s camshafts to wear down prematurely. 
  • Oil Leaks:  A combination of inadequate gaskets and differing expansion rates between the aluminum block and cast iron components caused numerous oil leaks. 

You won’t hear anything about those in this video however.

What stood out to me was the almost singular focus on computers and technology — to economize and speed up the manufacturing and assembly process – not to design and build a better engine.  This focus on automation for automation’s sake seemed a recurring theme during the Roger Smith era.  

So, if you are in need of a laugh or an example of why GM went downhill in the ’80s, here it is: 

And if it’s been awhile since you’ve read GN’s superb, in-depth treatise on the 1981 Cadillac, the link is below.  Highly recommended.  

Vintage Reviews:  1981  Cadillac – The Year Caddy Stopped Firing On All Cylinders by GN