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Pontiac V8 Engine History: 1. The Oakland Motor Car Company was founded in Pontiac, Michigan, in the early 1. General Motors Corporation (GM). Falling between Chevrolet and Oldsmobile on the corporate ladder, Oakland introduced Pontiac in 1.

The Pontiac line proved to be popular and in 1. General Motors discontinued Oakland, and the Pontiac Motor Car Company was officially formed. This Tech Tip is From the Full Book, HOW TO BUILD MAX- PERFORMANCE PONTIAC V- 8. S. For a comprehensive guide on this entire subject you can visit this link: SHARE THIS ARTICLE: Please feel free to share this article on Facebook, in Forums, or with any Clubs you participate in. You can copy and paste this link to share: http: //www. Oakland introduced the Pontiac in 1. Pontiacs sold so well that the Oakland line was canceled within a few years.

This particular 1. Pontiac is part of the General Motors Heritage Collection and was the first Pontiac ever produced. It’s the patriarch of the Pontiac hobby that maintains a strong following today. Pontiac Motor Car Company became Pontiac Motor Division (PMD) in the early 1. Straight- 8”, which was quite reliable.

V- 8 Development. In 1. 95. 4, General Motors leaned heavily on Chevrolet and Pontiac to develop V- 8 engines for the 1. Pontiac settled on a 3. Pontiac management urged that the design allow for future displacement increases, which eventually permitted the basic combination to displace 4. The V- 8 Reaches Production. Pontiac’s 2. 87 block featured five 2.

The left- hand cylinder bank was offset rearward. This allowed the distributor to be mounted on the right side of the block, exposing its driven gear to upward thrust, eliminating the need for a machined thrust surface within the block. The new OHV V- 8 “Strato Streak” engine debuted in 1. Displacing 2. 87 ci, the entry- level 2- barrel mill was packed full of cutting- edge features and was rated at 1. Galaxy Y S5360 Root Zip Download. An optional 4- barrel carburetor was made available midyear, which increased horsepower to 2.

The cylinder heads incorporated 1. A reverse- flow cooling system directed coolant toward the cylinder heads before the lower end of the engine in an attempt to extend exhaust valve life. The block’s lifter galley was fed with a relatively high volume of oil to accommodate hydraulic valve lifters to provide quiet, consistent, and maintenance- free valvetrain operation. The rocker system, consisting of a stamped- steel rocker arm pivoting on a single stud, was one that many other manufacturers adopted for their V- 8s in later years. Engines featuring a compression ratio of 7. A machined (decked) cylinder head was utilized to boost compression ratio to 8: 1, and increased horsepower to 1.

A 2. 00- hp version was introduced in mid 1. Growth Spurts. Engine displacement grew to 3. Optional dual exhaust added about 1. Pontiac created its first extra- horsepower package in mid 1. With more compression, dual 4- barrel carburetors, and a special camshaft, the combination boosted horsepower to 2. Bunkie Knudsen was brought in to change Pontiac’s image.

Though his influence is felt in 1. Bonneville represents the direction Pontiac was headed during the late 1.

The low- slung body with flashy accents made the Pontiac seem as if it’s moving forward while standing still. Tri- Power was introduced in 1.

Pontiac a youthful appeal to young hot rodders. Boasting excellent street manners and economy while operating on its center 2- barrel carburetor, and strong acceleration as its end 2- barrels progressively opened, it was well marketed and quite popular with buyers through 1. It is truly a Pontiac trademark. Semon “Bunkie” Knudsen was appointed as Pontiac’s general manager toward the end of the 1. With the promotion came instructions to drastically change the division’s image beginning with 1.

In addition to revisions he made to body styling, Knudsen hired Pete Estes who was part of Oldsmobile’s very successful highperformance V- 8 program—as chief engineer, and a young John Z. De. Lorean as assistant chief engineer. Even though General Motors agreed to adhere to the Automobile Manufacturer’s Association (AMA) 1. Pontiac increased V- 8 displacement to 3. A trio of 2- barrel carburetors, heralded as “Tri- Power,” was made optional, increasing horsepower to 2. The top performer designated for NASCAR- type competition still utilized dual 4- barrel carburetors and cranked out 3.

The Super Duty Era. Displacement increased to 3. The engine grew yet again in 1. That year also initiated Pontiac’s illustrious “Super Duty” era. A complete over- the- counter parts package with the sole intent of producing a competition- only 3. It employed the same four- bolt block used in Tri- Power applications, but the Super Duty package filled it with a forged- steel crankshaft and connecting rods. High- flow cylinder heads produced 1.

High- flow castiron exhaust manifolds (with separate collectors that could be uncapped) were offered, and a single 4- barrel or Tri- Power intake manifold was also used. Actual output of the Super Duty 3. Pontiac arbitrarily rated the 4- barrel engine at 3. Tri- Power was rated at 3. The combination was quite successful as Pontiacs went on to win 7 of the 4. NASCAR races in the 1. Pontiac ad- man Jim Wangers piloted a 1.

Ventura to the NHRA National championship. The 3. 89 was carried over into the 1. Super Duty package went on. Intake manifold choices were limited to a single 4- barrel or Tri- Power. While both were previously cast iron, for 1.

Either engine was rated at 3. Initially available through its dealership parts counters for the Tri- Power 3.

Pontiac’s Super Duty package included a forged- steel crankshaft and connecting rods, a solid- lifter camshaft, and high- flow cylinder head and exhaust manifolds. The package was available in 1. Royal Pontiac in Royal Oak, Michigan, capitalized on Pontiac’s success on the drag strip early on.

With the assistance of Pontiac ad- man Jim Wangers, Royal Pontiac became intertwined with the Division and had a direct line to its Engineering department. This particular 1. Ventura, campaigned by Royal Pontiac and driven by Wangers, may be the only 1. Pontiac to receive a factory- installed Super Duty 3. To maintain competitiveness on the track with the larger engines produced by other manufacturers, Pontiac released a 4.

Super Duty package through its parts departments toward the end of the 1. To comply with rules imposed by racing associations, both it and the Super Duty 3. Available only with two 4- barrels, the SD- 4. Concerned with maximum performance, little regard was given to cold- weather operating characteristics of the Super Duty engine. As such, most Super Duty Pontiacs were purchased with the sole intent of regularly competing on the race track.

Campaigned by Gay Pontiac, driver Don Gay claimed the 1. NHRA National Championship in class A/Stock with this 1. Catalina. The Super Duty combination proved to be lethal. Pontiac was dominating drag strips around the country and it captured 3.

NASCAR race wins during the 1. The 4. 21- ci V- 8 debuted in Pontiac’s parts books toward the end of the 1.

Chevy’s 4. 09, Ford’s 4. Mopar’s 4. 13. It’s generally accepted that none were factory installed.

The Super Duty 4. It utilized the same cylinder heads as the 3. Rated at 3. 73 hp, the package made Pontiac an even greater threat on the race track. If success is measured by competitive wins, Pontiac was the manufacturer to beat in 1. The possibilities seemed limitless with the persuasive John De. Lorean having been promoted to chief engineer the previous year. Until that point, certain forms of racing simply required that a given component have a factory part number for it to be legal for competition.

That translated into a flood of aftermarket components arbitrarily hung with manufacturer part numbers with the sole intent of satisfying these governing bodies. It didn’t take long for the National Hot Rod Association (NHRA) to catch on and revise its ruling for certain stock classes.