Question: How To Build A 400hp 350?

How much horsepower can a 350 make?

a typical 350 Chevy can make upwards of 350 – 375 HP before you exceed the reliability of the components. For a big block with the same stock components it can make in the area of about 400 to 475 or so HP and handle upwards of about 500 HP before you exceed the reliability of the stock cast pistons.

How much does it cost to build a 500hp 350?

Hey,.. If having a killer engine like that was cheap and easy, EVERYONE would have one in their car, and that just isn’t the case. A good, well built 350 making in the 400 HP or so area, that will also make some good torque, is going to cost in the area of $8,000 – $9,000 or so.

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How can I get more horsepower out of my 350?

No matter what application your Chevy 350 motor is in, a few simple steps can get you more better performance and higher horsepower.

  1. Modify your air intake.
  2. Modify your exhaust.
  3. Change your camshafts and valve train.
  4. Purchase new cylinder heads, or have yours ported and polished.

How much does it cost to build a 350 engine?

Generally, for a “good” rebuild that doesn’t really get beyond ‘mild 350’ standards, you’re looking at about $1,600-2,500 depending upon location.

How much horsepower do headers add to a 350?

The length of the primary tubing determines the effective rpm range, but headers can be worth 15-20 hp on the right application. Run on our restrictive two-barrel 350, the headers improved the power output to 248 hp and 365 lb-ft of torque, with consistent gains through the rev range.

What is the cheapest way to increase horsepower?

More fuel/air equals more horsepower. Cold-air intakes also (as the name implies) draw cooler air from outside the car engine compartment. Cooler air is denser, again resulting in the computer increasing the amount of fuel, helping the engine increase horsepower.

How much HP can a 4 bolt main 350 handle?

4 bolt 350 010 blocks can handle 1200 hp all day.

What is the best small block Chevy engine to build?

Best Chevy Engine Builds

  • 427 Small-Block Build.
  • 383 Small-Block Build.
  • 350 Small-Block Build.
  • 396 LT1 Small-Block Build.
  • 355 LT1 Small-Block Build.
  • 388 LS7 Build.
  • 440 LSX Build.
  • 416 LS3 Build. Of course, you can also have excellent results with more stock based components such as this 416ci LS3 combo.
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What is a good size cam for a 350?

What is the biggest cam for stock 350? The biggest cam will be the COMP Cams CL12-600-4 Thumpr 227/241 Hydraulic Flat Cam. This can also be regarded as the best cam for stock 350 chevy.

How much horsepower can a 2 bolt main 350 handle?

A 2bolt main with aftermarket studs is stronger than a 4-bolt main block, less prone to crack, and can take up to 600 HP on a seasoned block.

How much horsepower can a carburetor add?

Short answer – a carb can‘t give you a horsepower increase. you are under or over jetted. If you have a stock motor with a stock carb in stock trim then a carburetor can open up the horsepower that your engine is capable of making.

Will 400 heads fit on a 350?

You can put 400 heads on a 350 but you should not put 350 heads on a 400 without drilling the steam holes.

What year is the best Chevy 350 engine?

The 1975 version of the LT-1 ultimately succumbed to new emissions standards that brought its horsepower all the way down to 145 HP. The LT-1 was the last and arguably greatest of the old fuel-guzzling, emissions-spewing 350 engines. Those original LT-1s from 1970 will go down as some of the best engines of their time.

Is a 305 worth rebuilding?

If it needs to go to a machine shop for anything more than tanking, just get a 350. 305 heads are worth rebuilding, even for a 350.

How much does it cost to build an LS engine?

Yep, getting an LS engine in your car is no inexpensive endeavor. For a typical LS crate engine you can easily spend $7,000 and you’ll need to drop another $1,200 for the computer and harness to make it run.

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