How Much HP Can A Stock 400 SBC Crank Handle?

Can you put 400 heads on a 350?

The only difference is that 400 heads have steam holes drilled in them for the 400 block.

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

Why is a 383 better than a 400?

The 383 is meant to be a higher compression engine, using either the 5.7″ or 6.0″ rods. 400 uses a 5.5″ rod. The less oversquare you have in an engine, the more torque that’s produced.

How much HP is a 383 stroker?

The point here is 502 lb-ft at 4,700 rpm and 500-plus horsepower from 5,700-6,200 rpm. Someday we hope to stab this 383 in the Crusher Camaro, which has been relieved of its 632….Hot Rod’s Proven Recipe For A Simple Chevy 383 That Knocks Down 500 HP And 500 LB-FT.True 383 PowerRPMLB-FTHP6,20042550222 more rows•Oct 13, 2009

Can you put Vortec heads on a 400 SBC?

In case you missed the story, the best power numbers were gained with a set of GM Performance Parts Vortec heads supplied by Scoggin-Dickey, and even then the 400 small block Chevy managed only 401 hp and 458 lb-ft of torque. … That’s a peak horsepower bump of 65!

How much horsepower can a cast crank handle?

500 hp”In a typical small-block, a cast-steel crank can easily handle 500 hp. Although we’ve seen them pushed to much high power levels, we generally recommend a forged crank at anything above that power level.”

Can you get 500hp out of a 350?

You “can” get 500HP out of a 350 BUT because it is a small cubic inch engine it IS going to be peaky and won’t have much torque. … You do NOT want a “chain saw” of an engine in your car! Chain saws make NO torque and they only way they can cut wood is at wide open throttle at their peak RPM.

How much horsepower does a stock 400 SBC have?

376 hpWith the stock Vortec heads, the low-compression 400 managed to make 376 hp and almost 450 lb-ft of torque.

Is a 400 SBC a good motor?

Overall, the 400 SBC is a really good block. They do come with a bit shorter connecting rods (5.565″ compared to 5.700″ for the 350) than do most of the other SBC engines out there.

Is a 4 bolt main better than a 2 bolt main?

A 2-bolt 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. … Most of the engine builders online, including some big brands, will drill extra holes on their 2-bolt main blocks and it makes the mains weaker and more prone to cracking.

Can you turn a 2 bolt main into a 4 bolt main?

It’s not worth it to take a factory two bolt and turn it into a 4 bolt unless you know someone who owns a machine shop and can do the work for free. You can get a used four bolt block for way cheaper than the four bolt conversion parts and labor charges.

Is a 400 small block better than a 350?

A small block 350 and a 400 have an identical block design. Most accessories will fit either engine. The major difference is found in the casting numbers and the way they are balanced. Most 350 cubic inch engines are internally balanced whereas the 400 engines are not.

What vehicles came with a 400 SBC?

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.

How much HP does a 406 small block have?

Henderson Power Sports tops 600 hp with a 406-cube pump-gas hydraulic-roller Chevy 400 small-blockBY THE NUMBERS406 Chevrolet Small-BlockCompression ratio:10.5:1Camshaft:custom COMP hydraulic rollerValve lift:.725/.734 inch19 more rows•Dec 16, 2013

How much HP can a stock SBC crank handle?

That’s why forged cranks cost three to four times more than cast cranks, but the trade-off is a dramatic increase in strength. A typical small-block cast crank is good up to 500 hp, while a 4340 forging can take 1,500 hp.

How much power can a scat 9000 crank handle?

The scat 9000 cranks are supposedly good to 500 hp but theres likely to be a significant margin of safety in there. I think the more likely place for failure is with the high piston speed on a stroker… the piston or rod is more likely to come apart above 6500 than the crank!

How much HP can a 4 bolt main 350 handle?

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

Are scat cranks balanced?

Tom Lieb: Steve, SCAT cranks do not require a specific harmonic balancer. Like all cranks they require a balancer that is properly designed for a performance engine.

Are scat cranks any good?

scat in a 454 is a safe bet in my opinion only. If one has a high reving motor than their forged steel cranks are a better choice and more than capable for the street and stress we put on them. The track may be a different story although many will/can attest that they have great success their too!

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.Modify your air intake. … Modify your exhaust. … Change your camshafts and valve train. … Purchase new cylinder heads, or have yours ported and polished. … Have your motor rebuilt and blueprinted.

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.

How much HP can a stock 350 bottom end handle?

Assuming it was correctly rebuilt, a completely stock bottom end – main bolts, cast crank, stock rods, cast pistons is good to around 350 HP. Add ARP bolts and I’d be willing to take it to 400 or so. Definitely a 5500 RPM redline.