How much horsepower did the Pontiac 421 have?
The engine is rated at 373 horsepower and features dual four-barrel carburetors, a solid-lifter camshaft, and high-capacity aluminum exhaust manifolds. The 421 engine is available only with related heavy-duty driveline components. It can be fitted to any Catalina or Ventura 2-door model.”
Did Pontiac make a 421 motor?
By 1963 Pontiac decided it was time to release the 421 V8 officially to the general public and the motor would continue to be available until the end of the 1966 model year. The 421 SD Tri-Power engine offered during these years produced the highest horsepower of any motor in the Pontiac V8 lineup at 376 bhp.
What years did Pontiac make the 421?
The 421 SD became factory installed in 1962 and in 1963 a street version became available from the factory with a dual four-barrel or three two-barrel Tri-Power carburetion. Modified versions of this engine were extensively used in NASCAR stock car racing and drag racing competition.
Is a Pontiac 421 a big block?
Now factory-installed for 1962, the 421 used a four-bolt 3.25-inch main block, featuring a larger 4.09-inch bore, a 4-inch-stroke forged steel crank, forged-steel rods, and forged-aluminum pistons, and more.
Did Pontiac make a big block engine?
The original 1970 Pontiac 455 ‘big block’ V8 was good for between 360 and 370 horsepower and 500 lb-ft of torque. At first glance this didn’t transcend the 370hp on offer by the Ram Air IV version of the 400 V8 available in the GTO that same year, or even Pontiac’s 366 horsepower Ram Air III 400 motor.
What cars had 421 engines?
They acquired the featured Montero Red 1966 Pontiac Catalina post car, which was equipped from the factory with the 421 H.O. Tri-power engine rated at 376 hp.
Did Pontiac make a 426 engine?
The bearing of the 421 now has a 4 bore, an increase of three. With a volume of 11,224, 426 ounces were produced. Having a crank stroke of four inches, along with the 5-inch motor, gives you a power increase of 5 ci….What Engines Did Pontiac Make?
|Pontiac V8 engine|
|Valvetrain||OHV 2 valves x cyl.|
What is the biggest Pontiac engine?
The 455-cu.in. V-8 debuted in 1970 and was the largest displacement Pontiac engine ever built for the street.
What does GTO stand for on cars?
Gran Turismo Omologato
What does GTO Mean? Gran Turismo Omologato in Italian (Grand Touring Homologated in English). While the initials may be most closely associated with the 1960s Pontiac GTO muscle car, the origin — the reason for the Italian translation — actually traces back as a car name to Enzo Ferrari and his classic Ferrari 250 GTO.
Did Pontiac make a 428 engine?
The 428 was Pontiacs top engine for 3 short years- 1967-9. The bore is the same as the 400 at 4.12″. The stroke is 4″, the main journals are 3.25″. The 428 has remained one of the favorite Pontiac engines for racers and hot rodders and, are always one of the most sought after for a build up.
Was the Pontiac 400 a big block?
Ford 332 (5.4 litre) Interceptor big block V8. A Chevrolet Camaro 396 had a big block, but a Pontiac Firebird 400 did not. Buick and Oldsmobile 455s were big blocks, but a Pontiac 455 was not. A Chevrolet 348 was a big block, but a Chevrolet 350 was a small block.
What kind of engine does a Pontiac 421 Super Duty have?
Pontiac’s 421 Super-Duty engine debuted late in the ’61 model year as a larger version of the SD 389. Neither engine, however, was factory installed.
What kind of connecting rod does a Pontiac have?
All Molnar Pontiac connecting rods are fitted with highly durable premium bronze bushings for use with floating pin type pistons. These rods work in the following displacement V8 Pontiac engines. Each con rod set for the Pontiac V8 engines includes ARP fasteners, lubricant and installation guidelines.
What are the bushings for the Molnar Pontiac connecting rods?
All Molnar Pontiac connecting rods are fitted with highly durable premium bronze bushings for use with floating pin type pistons. These rods work in the following displacement V8 Pontiac engines.
How many miles does a Pontiac Catalina 421 Super Duty have?
His ’62 Catalina is equipped with the potent 421 Super-Duty engine and has accumulated a mere 14,000 miles in its lifetime. While some low-mile cars have led storybook lives, this Catalina’s tale contains a few different twists. The end result, however, is a stunningly original example that serves as a vestige of Pontiac’s glory days.