When did Pontiac stop making their own engines?
Pontiac continued to manufacture its own engines, distinct from Buick, Cadillac, Chevrolet, or Oldsmobile, until 1981. Pontiac engines were used in its U.S.-market cars; Canadian-built Pontiac automobiles generally used Chevrolet engines.
What was the compression ratio of a Pontiac V8?
Compression ratio was a modest 8.00:1, with valve diameters of 1.781 in (45.2 mm) (intake) and 1 1⁄2 in (38 mm) (exhaust). It was rated 180 hp (134 kW) @ 4600 rpm and 264 lb⋅ft (358 N⋅m) @ 2400 rpm with a two-barrel carburetor, 200 hp (149 kW) @ 4600 rpm and 278 lb⋅ft (377 N⋅m) @ 2800 rpm with the four-barrel carburetor.
How tall is the water pump pulley on a Pontiac?
Most iterations had an overall length (to the edge of the water pump pulley) of 28.25 in (718 mm), an overall width of 27 in (690 mm), and a height (not including air cleaner) of 31 in (790 mm) × 686 mm × 787 mm. All Pontiac engines (except the 303 Ram Air V engine and 265 and 301) used 6.625 in (168.3 mm) connecting rods .
What kind of engine did Pontiac have in 1955?
The 1955-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. An innovative design feature was mounting the rocker arms on ball pivots on studs set into the cylinder head, rather than using a separate rocker shaft.
What kind of car is a 2003 Pontiac?
The 2003 Pontiac Grand Am is a sporty five-passenger car available as a sedan or a coupe that comes standard with cruise control, ABS, and satellite radio. A mid-size sports sedan, the 2003 Pontiac Grand Prix seats five passengers and slots above the Grand Am but below the Bonneville in size.
What kind of engine does a 2003 Pontiac Sunfire have?
All 2003 Pontiac Sunfire models are powered by a 2.2-liter four-cylinder Ecotec engine. The coupe version of the Grand Prix has been discontinued leaving only the 2003 Pontiac Grand Am four-door sedan remaining.
What kind of car is a 2003 Pontiac Grand Am?
The 2003 Pontiac Grand Am is a sporty five-passenger car available as a sedan or a coupe that comes standard with cruise control, ABS, and satellite radio.
How many horsepower does a Pontiac engine have?
Pontiac Engines Lit CID Year 6.6 400 1967-1979 6.6 403 1977-1979 6.9 421 1961-1969 7.0 428 1967-1969
What kind of engine did the Pontiac 421 SD have?
Pontiac offered this to the public as a streetable version of the 421 SD. The engine came with 543797 (4-barrel) and 9770716 heads for the tripower and special exhaust manifolds and a 7H cam with 292deg. intake duration and later 1964 L with 288deg intake essentially the same as the 068 cam.
What was the rise and fall of Pontiac?
This week, we take a look at the rise and fall of the car that many consider the definitive Pontiac: the 1964–1974 Pontiac GTO. As we have previously discussed, until the mid-1950s, Pontiac made some of America’s duller cars. They were solid, dependable, and not unattractive, but they were staid and dull to the point of invisibility.
When did Pontiac stop making the 455 engine?
The 455 wielded massive horsepower, but a new horsepower rating system and tighter emission controls drove the 455’s power lower each year until GM abandoned the engine in 1976.
What kind of car was the Pontiac Catalina?
As the entry-level Pontiac, the Catalina was the leanest of the lineup, with fewer features and options to weigh down the car. It got the nod as the Super Duty production base vehicle. Of the 178 known ’62 Super Duty cars built, 162 were Catalinas and the other 16 were Grand Prixs.
What kind of engine does a Pontiac 400-455 have?
Featuring a Pontiac 400 cubic inch block stroked to 455 cubic inches, this authentic Pontiac stroker is perfect for street and strip use. The 400-455 is pump gas friendly for the mild daily driver.
How many horsepower does a 455 crate engine have?
Engine Displacement: 455 ci. Horsepower: 550. Torque: 575 lb-ft. Bore/Stroke: 4.155/4.21. Block/Crank Combo: Pontiac 400 block, Eagle cast crankshaft.
What kind of engine did the Pontiac Bonneville have?
Standard only for the Pontiac Bonneville was Pontiac’s first-ever fuel injection system. A mechanical system built by Rochester, it was similar in principle, but not identical, to the contemporary Chevrolet “fuelie”.
Why does my car idle at a higher RPM?
This also creates a vacuum within the intake manifold. These hoses can wear out over time and a leak may develop. If too much air gets mixed in with the fuel, it will cause your engine to misfire. This will result in a rough idle, usually at a higher RPM.
How to improve Pontiac V-8 performance, tuning guide?
You can copy and paste this link to share: https://www.pontiacdiy.com/how-to-improve-pontiac-v-8-performance-tuning-guide/ Engine tuning is a time-consuming process that’s required to achieve peak performance. It generally includes swapping carburetor jets and adjusting the distributor to advance or retard spark timing.
What causes a GM Quad 4 to misfire?
When your Quad-4 equipped GM vehicle is suffering a misfire… it’s because one of those three things is missing from one of the four cylinders. Simplified: A cylinder is misfiring because it’s missing fuel, or spark, or air (compression).
When to start the distributor on a Pontiac V-8?
The distributor must be timed appropriately to provide peak performance and that includes initiating combustion some 30 to 40 degrees before the piston reaches TDC, depending upon the application.
What kind of springs do I need for my Pontiac V-8?
The Adjustable Vacuum Advance kit from Crane includes a variety of advance-curve springs as well as a serrated limited plate and vacuum adjustment tool. It’s an excellent piece that’s ideal for tailoring vacuum advance to provide peak engine efficiency at idle and part throttle.