Is a Pontiac 400 a good engine?

Because of its place in Pontiac’s most brutal and outlandish muscle cars as well as fighting the good fight into the era of smog-choked, low-compression lameness, the Pontiac 400 remains one of our favorite V-8 engines.

How much horsepower does a Pontiac 400 engine have?

The 400 remained in production through the 1978 model year, with 1979 cars receiving engines produced the previous year. In basic 2-barrel form it produced 290 horsepower and 428 ft. pounds of torque in 1968. This was the engine installed in Pontiac’s “executive” line of large cars and its largest station wagon.

Is a Pontiac 400 considered 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. … Thus, segregating engines and engine families into small and big block categories became useful shorthand.

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What is the difference between a Pontiac 400 and 455?

In fact, the 400 actually has a slight advantage over the 455 for maximum performance applications because its smaller-diameter bearings offer less friction and its smaller main journal bore leaves more material in the bulkhead.

What was the most powerful Pontiac engine?

The rear-drive G8, hailed here at AutoWeek and elsewhere in the wheeled world in its original rear-drive, 361-hp, 6.0-liter V8 form, now has a mighty 415-hp 6.2-liter V8 driving those rear wheels, making it the most powerful Pontiac ever. “Now wait a minute,” you say.

What is a Pontiac 400 engine?

The Pontiac 400 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.

How heavy is a Pontiac 400 engine?

About 120,130ish; bare block/caps.

What is the firing order on a Pontiac 400?

Like all PONTIAC engines since 1955, the firing order sets is: 1-8-4-3-6-5-7-2, all by turning it counterclockwise. Note that the cylinder number 1 is the next driver in front of the engine (the same location on all V-engines) or just the first behind the power steering pump.

How much can you bore a Pontiac 400?

Most Pontiac blocks can tolerate an overbore up to 0.060 inch, and possibly more after proper thickness testing. Boring and honing should always include a honing plate.

Did Pontiac make a Hemi engine?

This was a project started by Pontiac with the end goal of building a Pontiac 427 Hemi. Surprisingly, Mopar actually agreed and sent over several of the engineers that designed both the 392 and 426 Hemi. … The goal of making a Pontiac Hemi succeeded but was never produced.

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How do I identify a Pontiac 400?

On blocks produced in 1970 and after, you will find 350, 400, or 455 stamped towards the left side of the front of the block. There is no displacement stamp for 421, 389 or 326 blocks. To further identify the year and application, move to the top and rear of the block, where the distributor is mounted.

Is the Olds 425 a good engine?

The 425 cu in (7.0 L) big-block was the first tall-deck “big block,” produced from 1965 through 1967. It is arguably the best engine Olds made in the muscle car era, although it never made it into a “muscle car”. It used a 4.126 in (104.8 mm) bore and 3.975 in (101.0 mm) stroke.

How much horsepower can you get out of a Pontiac 455 engine?

Horsepower and Torque

The 455 High Output generated 335 horsepower and 480 foot-pounds of torque for 1970 and 1971. However, power steadily declined beginning in 1972 when Pontiac reduced it to 300 horsepower and 415 foot-pounds of torque.

What is a 400 engine in liters?

400. The largest version of the Generation I small-block was the 400 (6.6 liter). It was the only engine available with both the 4.125-inch bore and the 3.75-inch stroke crankshaft.

What is a 400 cubic inch engine?

One of Chrysler’s greatest engines was the 400 cubic inch, 6.8 L V8. It was introduced in 1972. … This engine was also known as part of the “wedge” family of engines because of the wedge shaped combustion chambers used. The massive motor produced up to 410 hp, a monumental amount of power for this time.

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Who builds Pontiac engines?

DCI Motorsports is your premier Pontiac engine builder. We build them all, from 1955-1979, factory restorations, mild street engines to high power race engines. All engine sizes welcome, from 326, 350, 389, 400, 428, 455’s and everything in-between.