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Old 02-05-2009, 03:41 PM
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400 horsepower??

what would be the fastest easiest way to achieve 400 horses out of a small block 350 the block is in great shape so what would be some build ideas for the cheapest 400 horses?

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Old 02-05-2009, 03:50 PM
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250 shot of nitrous.....heh heh
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Old 02-05-2009, 03:59 PM
How fast is fast enough?
 
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new heads, or port the ones you have to the max. bump up compression. New cam, intake, headers, maybe carb.

Or nitrous. Or a turbo or supercharger.
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Old 02-05-2009, 04:56 PM
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Quote:
Originally Posted by 303oldskool
what would be the fastest easiest way to achieve 400 horses out of a small block 350 the block is in great shape so what would be some build ideas for the cheapest 400 horses?
Where are you starting from as in what is the year of the engine and how is it configured.

Pretty much 400 horse from a 350 is a no brainer, meaning not difficult to do.

Bogie
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Old 02-05-2009, 10:31 PM
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The fastest way, supercharge it. You may or may not reach 400hp but it's about the fastest way to add significant amounts of power.

You could also fill your tank with nitromethane... (I'm kidding)
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Old 02-05-2009, 10:42 PM
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Quote:
Originally Posted by 303oldskool
what would be the fastest easiest way to achieve 400 horses out of a small block 350 the block is in great shape so what would be some build ideas for the cheapest 400 horses?
There's over 100 SBC engine combos on this site, 350's, 383's, 406 etc.. Have at it. You pick.
Small Block Chevy Dynoed Combos
http://ryanscarpage.50megs.com/combos1.html
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Old 02-06-2009, 10:58 AM
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Vortec heads
Beehive springs good for .550" lift
full length headers
Performer RPM intake
Cam to make 400.

Grin from ear to ear.
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Old 02-06-2009, 11:26 AM
How fast is fast enough?
 
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Ported 305HO heads, used performer intake with EGR (painted black), Quadrajet carb, long tube headers (painted black), upgraded HEI, and cheap E1785PM cam kit from competiton products.

It'll make 400hp, and look bone stock, not to mention can be assembled for less than 2G's if you do most of the work yourself and shop around.


I have an engine very close to that combo but it's running a "Port O Sonic" intake (I thought it looked neat), a 2" 4-hole spacer, a 600cfm Holley (was free), and flat tops with ported 493 heads (those were free before I cleaned them up, ported, and replaced the seals and springs).
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Old 02-06-2009, 12:08 PM
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Quote:
Originally Posted by ap72
Ported 305HO heads, used performer intake with EGR (painted black), Quadrajet carb, long tube headers (painted black), upgraded HEI, and cheap E1785PM cam kit from competiton products.

It'll make 400hp, and look bone stock, not to mention can be assembled for less than 2G's if you do most of the work yourself and shop around.


I have an engine very close to that combo but it's running a "Port O Sonic" intake (I thought it looked neat), a 2" 4-hole spacer, a 600cfm Holley (was free), and flat tops with ported 493 heads (those were free before I cleaned them up, ported, and replaced the seals and springs).

You are implying that you are actually making 400 hp with your combination. Do you have any dyno reports or track times to prove the 400 hp claim ? That does not look more than about 360 hp to me but maybe I am wrong.
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Old 02-06-2009, 12:20 PM
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Dyno reports? Why, the EGR and headers are probably painted black.

Who doesn't need a little Friday morning chuckle?!
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Old 02-06-2009, 12:37 PM
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Originally Posted by 68NovaSS
Dyno reports? Why, the EGR and headers are probably painted black.

Who doesn't need a little Friday morning chuckle?!

I need to go out and paint my stuff now, the tracks are opening soon !
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Old 02-06-2009, 12:44 PM
How fast is fast enough?
 
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I will post chasis dyno numbers once I get the truck completely together. Its the best I can do. FWIW DD predicts better than 400 on my combo, though I'll be the next in line to say that's not perfectly accurate. And I forgot to add 1.6 roller rockers (roller tipped at the least).

And the black paint is for stock look. It'll help hide the headers and make the intake look very close to stock.

I have flashy engines and I have stock looking engines. I even have an engine that looks like it came out of a tractor.

I like budget builds that look stock and can beat the flashy guy next to you. This is a great combo that is dirt cheap, has great midrange, a nice idle, and dances on both sides of the 400hp mark (depending on how you finish it up).
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Old 02-06-2009, 12:55 PM
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Quote:
Originally Posted by ap72
I will post chasis dyno numbers once I get the truck completely together. Its the best I can do. FWIW DD predicts better than 400 on my combo, though I'll be the next in line to say that's not perfectly accurate. And I forgot to add 1.6 roller rockers (roller tipped at the least).

And the black paint is for stock look. It'll help hide the headers and make the intake look very close to stock.

I have flashy engines and I have stock looking engines. I even have an engine that looks like it came out of a tractor.

I like budget builds that look stock and can beat the flashy guy next to you. This is a great combo that is dirt cheap, has great midrange, a nice idle, and dances on both sides of the 400hp mark (depending on how you finish it up).
Some of those flashy guy's next to you might have just a little more than 400HP!
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Old 02-06-2009, 01:00 PM
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Quote:
Originally Posted by ap72
I will post chasis dyno numbers once I get the truck completely together. Its the best I can do. FWIW DD predicts better than 400 on my combo, though I'll be the next in line to say that's not perfectly accurate. And I forgot to add 1.6 roller rockers (roller tipped at the least).


I like budget builds that look stock and can beat the flashy guy next to you. This is a great combo that is dirt cheap, has great midrange, a nice idle, and dances on both sides of the 400hp mark (depending on how you finish it up).

What flow numbers are you using on your heads to get Desktop dyno to tell you that ? What are you using for an intake model ? I hope you do make a legit 400 hp but I am skeptical.


I just went and fooled around with Desktop dyno. I can't get it to 400 hp. What are you using for compression ratio? I used 10:1.

Last edited by RustoRod; 02-06-2009 at 01:06 PM.
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Old 02-06-2009, 01:10 PM
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For what it's worth we are running an all steel 1991 S-10 through exhaust manifolds. It has run 11.53 at 116.5. It weighs 3300 with driver. I think it is putting out about 405 hp. Your build doesn't look anything like mine.
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