Pontiac 326 motor

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For , the unit-construction Y-body Pontiac Tempest and Le Mans, which featured a unique torque-tube and flexible driveshaft, a rear-mounted transaxle and independent rear suspension, were scheduled to increase in size and weight. The division had been using the Buick-built aluminum cu. V-8 engine in them as an option above the Pontiac four-cylinder, but now needed a midsized V-8 for what was growing very close to a midsized car. Dropping in the regular-production cu. However, with some reengineering, the existing V-8 design had potential.

Pontiac 326 motor

This small displacement engine packed a lot of punch. There is a reason why we used to preface automobile engines, like the Pontiac , with the manufacturer's name. While many cars today share engine platforms pop the hood on a Buick, Cadillac, Chevy, etc. Back in the '60s and '70s, the individual divisions took great pride in manufacturing their own unique engines. With that said, it's widely believed that GM had a few ground rules. One popular belief is that GM wanted the Chevrolet Corvette to have the most powerful engine. At times this created a problem for the Pontiac Motor Division. This meant they had to make a few negative gain adjustments, so their engines would fall in line behind the Chevy products. Interestingly enough, this would fall just one cubic inch short of the found in the split-window C2 Corvette. Since classic car collectors interested in Pontiacs will often find the under the bonnet, we decided to provide a little more information about this common engine. However, it's even more common to see them in the midsize Pontiac Tempest and Lemans models.

However, it was a bump up in the compression ratio that made the biggest difference. It was rated at bhp kW gross in the GTO version. The crankshafts were also unique in the fact that they pontiac 326 motor only two counter weights instead of the usual five and also featured lightened connecting rod journals.

The engines feature a cast-iron block and head and two valves per cylinder. Engine block and cylinder heads were cast at Saginaw Metal Casting Operations then assembled at Tonawanda Engine before delivery to Pontiac Assembly for installation. Initially marketed as a cu in 4. In the s the popular cu in 6. Unusual for a major automaker, Pontiac did not have the customary "small-block" and "big-block" engine families common to other GM divisions, Ford, and Chrysler. Effectively, production Pontiac V8 blocks were externally the same size sharing the same connecting rod length 6.

The Pontiac GTO was a classic muscle car from the s and s. It was introduced as part of the Pontiac Tempest and quickly became one of the most iconic cars of its era. The GTO was powered by a variety of V8 engines, including the cubic inch 5. While the was never officially offered in the GTO, some Pontiac fans have managed to create their own unique versions of the car by installing the engine in the GTO chassis. In , the dimensions and weight of the new Pontiac Tempest and Le Mans were expected to be increased. It was not possible to use a full- sized engine. It was possible to add a midsized engine to the existing V-8 design with some reengineering.

Pontiac 326 motor

The Pontiac engine was a V8 engine introduced in to replace the Pontiac It was a smaller engine than the , with a displacement of cubic inches 5. The was a popular engine for Pontiac and was used for a variety of vehicles, including the Firebird, Grand Prix, Catalina and Bonneville. But why did Pontiac decide to call the a ? The answer lies in the fact that the engine was actually a modified version of the larger Pontiac engine. The was a V8 engine introduced in with a displacement of cubic inches 5. The was essentially a slightly modified version of the , using the same block, heads and other components. Pontiac chose to keep the name of the larger engine, and simply call the smaller version the

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Its cast "" heads had taller valve spring heights than the standard D-port heads, and the only degree valve angle closed combustion chamber making these heads unique. The was used through when it, as with many other large displacement engines, was discontinued as manufacturers moved to smaller, more efficient models, even in their full size car lines. Not looking forward too it, but the other side now needs done. Develop and improve services. The division had been using the Buick-built aluminum cu. I next did a quick cutout out of thin sheet, again to make sure it will work as expected. Time to Pull parts and bag and tag every bolt and bracket. And purchase a new alternator! Tools Tools. Painted it semi gloss black and stuck it on, looks fantastic!

The Pontiac engine was a powerful, V8 powerplant developed by General Motors in the late s and early s. It was one of the earliest designs from the automaker, and remained in production for more than a decade. During its lifespan, the Pontiac was used to power a variety of cars, including the iconic Bonneville and Catalina models.

The crankshafts were also unique in the fact that they featured only two counter weights instead of the usual five and also featured lightened connecting rod journals. Now aged 92, and more than a decade on from his retirement from GM, he channels those same qualities into the creation of unique, scale paper replicas of classic sports and racing cars — all designed from scratch and built by Lutz using techniques he has practised, perfected and even invented along the way. The moment of Combustion. This article possibly contains original research. Magazine Hemmings Motor News. Finding a belt will be fun, here is a test fit to show about how it will be routed and tensioned. In the inaugural year, the produced horsepower. Marketplace App. By work on a cu in 4. Hewing to GM's standing edict limiting engine size to cu in for its midsize and smaller cars, the hp kW underrated , [ citation needed ] the cubic inch Ram Air V-8 was the most powerful and advanced option available in the GTO and Firebird. March 3, Despite the lack of fuel, the horsepower numbers remained respectable. Pulled the pan, and set to work eating up my wire wheels, and getting it back down to bare metal.