The Pontiac V8 engine is a family of overhead valve V8 engines manufactured by the Pontiac Division of General Motors Corporation that made its debut in Pontiac began as a "companion" to the Oakland division of the General Motors line of automobiles in Pontiac successfully competed against more-expensive inline four-cylinder models with their inline flathead six-cylinder engines. After outselling Oakland, Pontiac became the sole survivor of the two by In addition to the inline 6, Pontiac used the Oakland V8 for one year,debuting an inline 8 in The development of this V8 dates back towhen engineers began considering new engine designs for postwar cars.
They came up with a cubic-inch 4. The test results showed Pontiac that an L-head engine simply couldn't compete with overhead valve V8 engine designs. Despite their work, the division's conservative management saw no immediate need to replace the Pontiac Straight When Robert Critchfield took over as general manager inhe launched an ambitious plan to move Pontiac into the upscale, mid-range market occupied by Oldsmobileand that demanded V8 power.
A new engine was fast-tracked, its relatively late start allowing it to take advantage of developments proven in the Oldsmobile V8 and Cadillac V8. As a result, it was remarkably free of teething problems. Pontiac planned to produce the models with the V8, but Buick and Oldsmobile appealed to GM management and earned a 2-year delay.
Displacement began at cubic-inch 4. Pontiac continued to manufacture its own engines, distinct from BuickCadillacChevroletor Oldsmobileuntil Pontiac engines were used in its U. 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 At the request of Ed Colegeneral manager of Chevroletthe layout was also used by the Chevrolet V8 released inan exception to the customary GM policy of allowing a division one year of exclusive use of an internally developed advance.
Federal emissions standards and the drive towards "corporate" engines shared among all GM divisions led to the progressive demise of the Pontiac V8 through the late s.
The up Pontiac V8 was an overhead valve engine with cast iron cylinder heads and block and wedge-shaped combustion chambers.This Pontiac Tempest has -ci Edelbrock cam and lifters, performer intake, cfm carb, DUI distributor, Dougs ceramiccoated headers Show quality Pontiac Firebird show quality cart with Ram air 4bl engine automatic transmission.
Power disc brakes. Power steering New paint-New Front and back bumpers-Rebuilt Pontiac with long tube headers. Edebrock intake and carb. This is a Pontiac GTO hardtop. With the original cu inengine 4 BBL dual exhaust with factory exhaust splitters powersteering power This is a fantastic example of a convertible Pontiac Firebird. This Bird features a Pontiac mated to a 4 speed manualtransmission It is a Royal Blue. Very few with this color according to owner, Original Founded in Original matching numbers engine, c Pontiac historical society verified with the judge option.
Pontiac 400 Specs
Here is what It runs and sounds great. It has Eldebrock valve covers. It has great Collector quality body off restored Pontiac GTO a straight and solid example. Powered by the beastly correct C This vehicle is located in our florida showroom free shipping and 1year warranty!
Beneath the skin, Pontiac engineers continued to refine the Camaro-spec suspension forced on them by GM.Guzzle post data
Performance versions of both makes got new multiple-leaf rear springs with shock absorbers staggered fore and aft of the axle, so axle tramp in hard takeoffs was diminished. Horsepower on the standard cid V-8 increased by five, to It again had a hotter cam, stronger valve springs, and exclusive use of functional hood scoops.
A third engine variation bowed for '68 and was the best blend of machismo and manners. It too was rated at bhp, but redlined higher than the base engine and below the Ram Air. All s used a single four-barrel carb and came with either a three- or four-speed manual or optional three-speed automatic. The four-speed was standard on Ram Air cars. Not only was the Poncho quickest of the bunch, but its engine was the smoothest and its handling the friendliest.
Return to Classic Muscle Cars Library. Car and Driver said that the Pontiac Firebird was "almost in a class by itself. The engine in the Pontiac Firebird made for a smooth ride. The interior of the Pontiac Firebird was as freewheeling as the car's body. Pontiac ignited the classic muscle car era with a stroke of marketing genus. See profiles, photos, and specifications of Pontiac muscle cars.
Muscle cars came in many shapes and sizes. Here are features on more than muscle carsincluding photos and specifications for each model. Muscle cars created their own culture. To learn about it, read How Muscle Cars Work. Celebrated in story and song, the Chevrolet Impala SS was an instant legend. The Pontiac Tempest GTO lit the fuse on the muscle car boom by giving the small-car, big-engine ethic a cool identity. Renamed in honor of its new engine, the Buick GS was a well-kept muscle car secret.
No muscle car promised more performance, or had more trouble delivering it, than the star-crossed Ford Mustang Boss The engine is what gives a muscle car its flamboyant personality.Esp32 lifepo4
To learn everything you need to know about car engines, see How Car Engines Work. Muscle cars wouldn't have much muscle without horsepower -- but what exactly is horsepower? How Horsepower Works answers that question.This is a list of Pontiac vehicles. Pontiac was a brand of automobiles manufactured and sold by General Motors GM ; though production ended inPontiac remains a registered and active trademark of GM.
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Download as PDF Printable version. Personal luxury car —full-size car —mid-size car —, — coupe. Ventura II. Compact, rebadged Chevrolet Nova. Subcompact car, rebadged Chevrolet Vega. Subcompact car, rebadged Chevrolet Chevette. GM Epsilon platform. GM Kappa platform.Bachon ki balgham ka ilaj in hindi
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1968 Pontiac Firebird 400
Strato Chief. Pathfinder Deluxe. Super Chief.Q: I want to build a Pontiac engine for my Firebird. What parts would I need to build a sweet-running engine that makes around horsepower? Money is no issue! Keep your compression ratio at about 9. According to Edelbrock, this combo will yield horsepower and foot-pounds of torque on pump gas. You mid-read the catalog!!! The Performer RPM would be the recommendation.
I realize the tech guys try to sell certain products but outside the heads and intake Edelbrock leaves a lot on the table with their generic cams and carburetors.
Dyno proven hp rpm TQ rpm. Shifts around Add in a set of Edelbrock heads your well over hp and can pull rpm. Jeff Dubray — Do you have direct links to these parts by chance? I would like to look into this build set-up you have listed! Hey Jeremy, let me try my best to get you a more precise parts list. We recommend giving the Summit Racing folks a call for precise technical recommendations: Also allow the height of the performer rpm vs the performer manifold.
U can get a great set up from Butler performance dyno proven just saying lol upgrade rods and bolts rpm SD red line Hi Murray is my name im in Australia just finishing up a Hard to find a decent pontiac guy in Sydney Thx Dave. Engine needs a refresh. What parts combo would you recommend.
Pontiac V8 engine
Put an edelbrock carb on that build maybe hp. Put u an prob hp. Is it possible to achieve horsepower ot of a 77 block? Its the block. It has the stock heads and crank. The mods included are- Holley Edelbrock Torqer 2 Manifold.Pontiac introduced the cubic inch V-8 in performance oriented cars inand continued to make the engine available through The is a bored outwhich had been in use for a few years.Best performance chip for crown vic
Pontiac typically changed engine sizes by modifying the internal workings instead of the outward size, so many of the engines appear identical, though they may have vastly different specifications. The Pontiac engine was used as a high performance engine in sports cars, and it was used in large cars as a workhorse type engine, strong on power, though not as speedy as the higher performance engines. This was accomplished to a large extent by the use of carburetors.Ary digital ishqiya episode 10 facebook
A two-barrel producing less horsepower and higher torque was developed. A four-barrel carburetor allowed the engine to have more air, and that resulted in more horsepower for speed.
Valve angles and diameters were also adjusted according to the way the engine would be used. Higher performance engines had valve intakes at 2. The "lower" performance engines had 1. In the Pontiac GTO, the cubic-inch V-8 was tuned to deliver horsepower and foot-pounds of torque, or pulling power. The engine had a bore and stroke, or size of the cylinder and distance it travels, at 4. A four-barrel carburetor produced a fuel and air mixture that was compressed to a The engine had hydraulic lifters and five main bearings.
The Pontiac Executive Series, with the same cubic-inch engine with a two-barrel carburetor, had horsepower and foot-pounds of torque. The bore and stroke was the same as that of the GTO. Bywith more emission control standards, the horsepower was down to in the full-sized Pontiac sedan, and the torque was foot-pounds by that time. Compression ratio had gone down to 7. When introduced inthe engine was available on most Pontiacs, from the GTO that had a inch wheelbase, to the Firebird with its inch wheelbase, as well as the Bonneville, Catalina and Executive on either a or inch wheelbase.
After it was no longer offered on the Bonneville as it was replaced with the When car collectors encounter a classic Pontiac, the first thing they do is pop the hood, hoping to see the legendary Ram Air cubic-inch engine, which was part of the performance option packages that General Motors offered in the late s. If it's their lucky day, they'll maybe find a Tri-power Trophy motor hiding in the engine bay.
But if they're really lucky, they'll encounter the 6. The Pontiac Motor Division built the from through Nevertheless, this is an amazing year run at a time when car makers changed an engine's displacement every few years.1968 Pontiac GTO Project Car 400 V8
In fact, the Chevrolet 7. Pontiac grabbed a block used in the high-performance Catalinaas well as the Lemans and GTO, and punched it out to an even cubic inches. They found that the engine provided massive amounts of low-end torque and rock steady high RPM power output.
The posted numbers in the horsepower range with a single spread-bore, four-barrel carburetor. What sets this engine apart in the history books is the factory-installed high-performance Ram Air systems. Pontiac built the Ram Air versions in a total of five different stages.
The original set up in concentrated on improving how the engine would breathe. To that end, they included a hood scoop and fresh air intake, but tweaks to the camshaft, cylinder heads, and exhaust manifolds were key as well. These parts boosted power through improved intake efficiency and by reducing exhaust back pressure.
The major difference between the original Ram Air in and the Ram Air II in is the shape of the cylinder head intake ports. They went from a D-shaped port to a round one.
This change pushed advertised horsepower past HP for the first time. The Ram Air V is a completely different story.
Pontiac milled the deck on these blocks to boost compression and raise horsepower. It's believed they built less than in total. You'll also find them in family cars like the Bonneville and Catalina station wagons. With the supply far exceeding the demand, these engines make your potential classic car buy a great value. And parts are still readily available for rebuilding. In fact, high-performance replacement parts supporting the Ram Air crowd provide an opportunity to boost power output. Keep in mind that factory-paired engines with 4-speed manual transmissions are the most coveted by collectors.
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