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 had gained experience with reducing the bores in its standard engine when it downsized the cu.

Pontiac 326 motor

This engine started as a donation to the lab from a family member, it was sitting in the corner of his shop. He had pulled it to make room for a modern GTO driveline into his old Lemans. Here is what it looked like when we picked it up, was a Pontiac That was about all that we knew at the time, it had what looked like a Turbo on it. It came with long tube headers, and some older upgraded parts. More on that soon. Made up some custom mounts to fit in into the 34X4 S10 quad cab chassis. Snug fit for such a massive block. The best part, the stock S10 driveshaft slid right into the Pontiac trans, have to love GM never changing anything! Now fast forward 8 years, Life issues got in the way, this is what was uncovered, to start again.

Need to pick up a new filter, pressure switch and sender unit. Pontiac went to open-chambered heads in some models and all 68 and up pontiac 326 motor improve power, engine breathing and reduce emissions.

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 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 crankshaft stroke and main journal size changed among the years with the more popular CI and CI having a 3. The V8 was phased out in , replaced by GM "corporate engines" such as the Chevrolet cu in small block V8. Pontiac began as a "companion make" to the Oakland division of the General Motors line of automobiles in

Pontiac 326 motor

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

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Cleaned up nice though! Cam was a McKellar No. Like the base , the employed a two-barrel carburetor on a cast-iron dual-plane intake manifold, a Delco points distributor, and cylinder heads with 1. You may accept or manage your choices by clicking below, including your right to object where legitimate interest is used, or at any time in the privacy policy page. Low-performance and two-barrel applications, the standard engine in full-sized Pontiacs, got 1. Dropping in the regular-production cu. More on that soon. After the SD was certified with the new cam, it was production-ready but was then further delayed by the EPA mandating Pontiac recertify all of its engines when the EPA discovered that part-throttle emissions exceeded the limits. The Ram Air II remained at cu. Got it pulled, and trans off, and onto a stand!

General Manager Semon E. By , Pontiac had moved up from sixth place in sales to fourth, and in , it rose to third place. The youth market was then changed forever in with the release of the highly popular GTO.

The main innovation of the Pontiac engine was reverse-flow cooling and the stamped rocker-arm system, which had been devised by Pontiac engineer Clayton Leach in The best part, the stock S10 driveshaft slid right into the Pontiac trans, have to love GM never changing anything! The up Pontiac V8 that finally reached the public was an overhead valve engine with cast iron cylinder heads and block and wedge-shaped combustion chambers. Car Museums. I keep the sections to about half-to-three-quarters of an inch. The Ram Air II also incorporated the first computer-designed camshaft. List of Partners vendors. The engine came with 4-barrel and heads for the tri-power and special exhaust manifolds and a 7H cam with deg. Whether all were installed in GTOs is unknown. That was about all that we knew at the time, it had what looked like a Turbo on it.