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Old 07-17-2012, 12:44 AM
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Trying To Build A 400 Sbc That Makes At Least 600 To The Crank.

Anyone With Good Combinations Im Trying To Build A Street/Strip 400Sbc That's Makes At Least 600+ To The Crank Without Having To Use Power Adder Or Nitrous.

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Old 07-17-2012, 07:40 AM
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What you're asking is certainly POSSIBLE. It's not, however, easy OR common.

IMO, the two most important issues are A)Budget (you WILL have enough money to complete the project and it won't be a trivial amount) and B) "Pick a horse and RIDE it!" That is, establish the path you want to take to get you "threre", and STICK TO IT!

Such a build is pretty "broad" in scope, and may be a little TOO "involved" for a thread.

But first things first. What "cores" do you have?

Jim
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Old 07-17-2012, 07:57 AM
How fast is fast enough?
 
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It'll probably be at least 10 grand for the engine alone. Another 3-5 for the rest of the drivetrain and another 3-5 for suspension and chasis stiffening.

So do you have 20 grand to throw at this project?

These threads usually stop there.
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Old 07-17-2012, 11:39 AM
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You better get a Dart 400 block or heavy duty bowtie block and a 400 forge crank and 5.7" or 6.0" Forge rods, because the stock 400 will blow to pieces.
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Old 07-17-2012, 12:02 PM
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If you want it done right the first time, get Joe Sherman
Joe Sherman Racing to build it. Don't try to tell him how
he already knows how. Have your wallet ready.

Yes it can be done. Its going to be a bit on the radical side.

Joe Sherman Racing
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Old 07-17-2012, 09:38 PM
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or just build you a mild big block and be done with it
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Old 07-17-2012, 10:23 PM
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406 cubes=4.155x 3.75?
Quality heads dart/afr 227 23 degree,they will flow 225 ish with 75-80% of that on the exhaust side.rocker shafts(offset) 1.6 intake/1.5 exhaust. solid roller cam,260@ 50 int/268 @ 50 exhaust,108/108. You might need a reduced diameter cam depending on what rods you use.Crower or better forged crank and rods. 10.75 CR forged pistons,like wiseco. dart/mitchel block. deep pan, vacuum pump.crank fired ignition preferred,with limiter.victor jr 850 HP,regulator,pump,1/2 inch fuel line. basic parts list. dont buy any thing thats not premium quality. zero balance,not under balance,sfi damper like fluid,,,Steel light weight fly wheel if stick car,sfi approved of course. this combination should make 600 hp from 6800 to 7200.
the block needs to be fully machined, or checked for deck/squared, typical race engine blue printing.Im hoping you know all the little details
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Old 07-17-2012, 10:27 PM
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slight typo,,,those heads will flow 325 cfm,not 225,oops and sorry
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Old 07-17-2012, 10:44 PM
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also,,,depending on cars weight/gearing etc, A step header is worth looking into. 1 3/4 " primary tubes stepped to 1 7/8" with a long 3" collector.
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Old 07-19-2012, 12:47 AM
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With those aft 210 heads which port would be the best
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Old 07-19-2012, 06:59 AM
How fast is fast enough?
 
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Quote:
Originally Posted by Jtaylor88 View Post
With those aft 210 heads which port would be the best
AFR 210's won't cut it. They'll leave you about 50hp shy of your goal.
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Old 07-19-2012, 07:13 PM
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Quote:
Originally Posted by vinniekq2 View Post
406 cubes=4.155x 3.75?
Quality heads dart/afr 227 23 degree,they will flow 225 ish with 75-80% of that on the exhaust side.rocker shafts(offset) 1.6 intake/1.5 exhaust. solid roller cam,260@ 50 int/268 @ 50 exhaust,108/108. You might need a reduced diameter cam depending on what rods you use.Crower or better forged crank and rods. 10.75 CR forged pistons,like wiseco. dart/mitchel block. deep pan, vacuum pump.crank fired ignition preferred,with limiter.victor jr 850 HP,regulator,pump,1/2 inch fuel line. basic parts list. dont buy any thing thats not premium quality. zero balance,not under balance,sfi damper like fluid,,,Steel light weight fly wheel if stick car,sfi approved of course. this combination should make 600 hp from 6800 to 7200.
the block needs to be fully machined, or checked for deck/squared, typical race engine blue printing.Im hoping you know all the little details
Excellent list! Probably $10k-$12k right there if you add block work.

He shouldn't need a small base circle cam with a 3.75" crank, even with an h-beam rod.
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Old 07-19-2012, 07:28 PM
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thank you joelster for the comment.I agree that 12K would be a fair price for those parts and machine work.Those parts would also last and should be vary reliable.
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Old 07-19-2012, 08:47 PM
How fast is fast enough?
 
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Quote:
Originally Posted by vinniekq2 View Post
406 cubes=4.155x 3.75?
Quality heads dart/afr 227 23 degree,they will flow 225 ish with 75-80% of that on the exhaust side.rocker shafts(offset) 1.6 intake/1.5 exhaust. solid roller cam,260@ 50 int/268 @ 50 exhaust,108/108. You might need a reduced diameter cam depending on what rods you use.Crower or better forged crank and rods. 10.75 CR forged pistons,like wiseco. dart/mitchel block. deep pan, vacuum pump.crank fired ignition preferred,with limiter.victor jr 850 HP,regulator,pump,1/2 inch fuel line. basic parts list. dont buy any thing thats not premium quality. zero balance,not under balance,sfi damper like fluid,,,Steel light weight fly wheel if stick car,sfi approved of course. this combination should make 600 hp from 6800 to 7200.
the block needs to be fully machined, or checked for deck/squared, typical race engine blue printing.Im hoping you know all the little details
Don't waste your money on a vic jr. Get the super vic, bigger carb, and ati balancer. Id get a good cam grinder to spec you the cam for your combo, you may be able to go a hair smaller, and a little wider lsa.

I also think 15k is about right for that list of parts.
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Old 07-19-2012, 08:56 PM
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what ap72 said is true, A bigger manifold,bigger carb,bigger cam will make more HP. A super victor will flow enough air for a 9,000 rpm 406. a 1050 dominator carb is great,Bigger cams are the same price, wider lobe separation will have less overlap so compression will be an issue on pump gas.
lots of math involved,either way you 600 hp goal will be reached.
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