Along with the special edition Hurst Olds of 1968 and 1969, the 1970 W-30 was the most powerful production Oldsmobile ever created. While the 370 hp from its 455 is impressive, if not as high as some other contemporary muscle car engines, what is really amazing for those who have experienced it is the 500 lb-ft of torque.

Unlike most engines of the postwar period, the Oldsmobile 455 is undersquare, i.e., the stroke is longer than the bore. Having a long stroke engine tends to make the torque curve peak early in the rpm range; conversely, a short stroke engine will be inclined to rev higher and have higher torque peak. The advantage of an engine that has loads of torque at low rpms is that the surge of power is immediate from the moment that you step on the accelerator. While there are many cars from then to now that handily outperform the W-30 on paper, the number of cars that have that same sense of immediate power are far fewer. It’s an intangible that makes the W-30 an enormously fun car to drive on the street.

The only other muscle car of that era to equal the maximum torque numbers is the 1970 Buick GS. Even today, very few naturally aspirated cars match or exceed the 500 lb-ft of the 1970 W-30.

The W-30 was an option package on top of the 1970 Oldsmobile 442 model. Features over the regular model included an engine with 5 more horsepower and an aluminum intake manifold, red fiberglass inner fenderwells, and fiberglass OAI hood.

What do you think?
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  (595) posted on 08.16.2011

The high torque of the car really caught my attention. Though it is pricey one, people who are fond of muscle cars will consider this. Hmm. It is what I’ve seen in old action movies, which is being burned or exploded.

  (463) posted on 08.4.2011

The look of the car is basically based on the time. It’s been a long time since I had seen an old car. By the way, it has an impressive HP for convertible muscle car. I wonder why there are only four Oldsmobile here.

  (518) posted on 01.19.2010

nice restoration, but IMO it would be better if you bring this baby to Chip Foose, foose knows everything about muscle car.. trust me he will make you car better and best.

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