How Much Horsepower Does A 400 Pontiac Have?

What did a 400 small block come in?

The 400 small block Chevy was produced from 1970 until 1977.

It was originally installed in big sedans and wagons, but later found its way into some trucks.

I don’t believe it was ever put in the Chevelle or Camaro.

A co-worker has a very healthy 400 in his ’88 Corvette..

Are all Pontiac blocks the same?

He advises, “With the exception of the mid- to late-1970s PN 500557 casting, we consider all Pontiac 400 blocks functionally identical. The 455 blocks from 1970 to 1976 are also functionally identical.

How much does it cost to rebuild a Pontiac 400 engine?

There are those of us who have rebuilt a 400 or 455 from an engine core, so we know what a quality rebuild costs- you’re going to spend $1500-2000 on parts alone and another $750-1000 on machine work (figure another $800-1500 for professional assembly).

What is a 406 stroker?

A 406 has the stock 3.75″ stroke = not a stroker. Once you increase the stroke then it becomes a stroker motor.

What is the difference between a Pontiac 400 and 455?

The 400 and 455 blocks share the same size externally, but they are two different blocks internally. The 400 has a 4.12″ bore and the 455 has a 4.151″ bore, but the most you can go is 4.18″ on the 400- also a good idea not to go beyond . 060″ on the 455 either.

How much is a 1968 Firebird 400 worth?

1968 Pontiac Firebird ValuationEnginesMedian Sale400 CID | 330 HP$23,500428 CID | 375 HP$30,875350 CID | 320 HP$18,750400 CID | 335 HP3 more rows

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.

Is a 396 a good engine?

The 396 is a good revving engine, so you’d want to run a steel crank so it would live at the rpm you’d have to run it to make HP. And probably a roller cam, as flat tappet cams in big blocks have a nasty habit of “going away” relatively easily.

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’s the difference between a Chevy 350 and a Pontiac 350?

The Pontiac 350 is basically a big block, as the block itself is the same dimensions as the 400 and 455, but it has a much smaller bore. Bore and stroke for the Pontiac 350 is 3.876 x 3.75 compared to the Chevy 350, which is a true small block, 4.00 x 3.48.

How much horsepower does a 400 big block have?

The 400 V8: Final Mopar Big Block Engine1976horsepowertorque2-barrel1753004-barrel HP2403251 more row

Is a Pontiac 400 the same as a Chevy 400?

The Pontiac 400 features a 4.121in bore and 3.75in stroker, while the Chevy 400 features a 4.125in bore and 3.75in stroke.

Did Pontiac make a small block?

Pontiac differed from most other manufacturers in that the external dimensions of all their V8s, from 326–455 cu in (5.3–7.5 L) were the same. … Pontiac did not have the customary “small-block” and “big-block” engine families common to other GM divisions as well as Ford and Chrysler.

Is a 400 Pontiac a big block?

An Olds 400 is a big block, while an Olds 403 is a small block. (Sometimes it’s better to avoid the subject all together!) Thanks for the Pontiac engine history lesson Craig.

Why do they call a Pontiac GTO a goat?

In keeping with ”The Goat,” and because the animal is known for eating anything, the Pontiac GTO is attributed to “eat anything on the street” as a reference to its power and ability to beat other cars when racing.