your recipe for budget 700hp sbc

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your recipe for budget 700hp sbc

Post by MaxFlow »

I've heard all kinds of things and would like to hear the professionals opinion on a true 700hp sbc combo that utilizes somekind of limited budget with no power adders. A true N/A combo:

Anxious to hear some combos!

thanks
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Re: your recipe for budget 700hp sbc

Post by bigjoe1 »

Everyone has a different idea of what is a BUDGET combo. I build engines like this all the time, but they are NOT CHEAP.If you step up to a 434 combo, with a dart block, it is not going to be cheap. I get 750 Hp on pump gas with the right combination of parts==but not cheap


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Re: your recipe for budget 700hp sbc

Post by JoePorting »

If you want to go cheap, I'd say a large displacement SBC (400+), with AFR 227 #1068 heads ($1600) and AFR composite manifold ($600), around 11:1 compression, and a mech roller cam around 270 @ .050 duration and .630 lift should put you around 700 HP. Probably cost you less then $10K, less if you already have alot of the parts.
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Re: your recipe for budget 700hp sbc

Post by Belgian1979 »

Take a second hand motor, put a big turbo on it (maybe one from a truck) and 2 bar of turbopressure and voilà, 700 hp. I won't run for long, but you had it running at 700 hp à la Bubba style :D
Last edited by Belgian1979 on Thu Aug 11, 2011 7:00 pm, edited 1 time in total.
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Re: your recipe for budget 700hp sbc

Post by JoePorting »

That's a good point, try and find a used race motor for $3K or $4K or so. It won't make cutting edge power, but might be enough to satisfy.
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Re: your recipe for budget 700hp sbc

Post by Lockwire »

[quote="MaxFlow"]I've heard all kinds of things and would like to hear the professionals opinion on a true 700hp sbc combo that utilizes somekind of limited budget with no power adders. A true N/A combo:

Anxious to hear some combos!

Personally I would like to know two things, one in this statement and the other not. What is a budget motor up and down from a number , for example like $8ooo. that being just a number I chose. The second question is regarding RPM, what do you guys think is a number where it either high RPM or low RPM and meaning the number in the middle which would divide high or low RPM. I am just curios as to what people think. Stuart. :)
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Re: your recipe for budget 700hp sbc

Post by zums »

rpms= $$$$
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Re: your recipe for budget 700hp sbc

Post by MELWAY »

Budget and 700HP SBC....dont belong in the same sentence..... :)
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Re: your recipe for budget 700hp sbc

Post by raynorshine »

MELWAY wrote:Budget and 700HP SBC....dont belong in the same sentence..... :)
x2! there's even a current thread "budget 700HP Ford"........... :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol:
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Re: your recipe for budget 700hp sbc

Post by MaxFlow »

I have been around a few 700hp/500hp sbc. Also a bunch of 800+hp/675hp sbc. Most of them costing 12,000 and up. So with a Dart SHP/somekind of reasonably priced head/valvetrain with non shaft style rockers, a 4150 carb, a decent oil pan/pump, cam that you don't have to change springs every weekend, a decent $2,000 rotating assembly, there is no way to make 700hp fairly reliably? What I'm speaking of here is around $7,000 in parts?
I see all these 550hp Procomp headed 383's all over the net for 2500. Another 150hp costs $10,000 and up? :wink: :wink: :wink:
Now with that in mind what combo?
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Re: your recipe for budget 700hp sbc

Post by A Atwood »

MaxFlow wrote:I've heard all kinds of things and would like to hear the professionals opinion on a true 700hp sbc combo that utilizes somekind of limited budget with no power adders. A true N/A combo:

Anxious to hear some combos!

thanks
Are you talking race fuel or pump gas? That is a need to know.

What is you budget?

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Re: your recipe for budget 700hp sbc

Post by dfree383 »

Build a Big Block.... 700hp and "reasonable budget" are doable with one.
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Re: your recipe for budget 700hp sbc

Post by Orr89rocz »

E85 can make 20-30 hp more and is "pump" gas. You could use that.

What about an LSx motor? Possibly get to 700hp with ported rect port heads and a matching intake, while keeping it on pump.

There was a few street pump gas motors posted around here or chevelles.com that made mid high 600's with hydraulic rollers. 406 with 11.5 to 1 comp, 220cc heads, and a 250-ish duration hyd roller made 640. I'm sure abit more head, more rpm with more cam can get near 700. I dont think that would break the bank too bad. The 406 there was under 9K.
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Re: your recipe for budget 700hp sbc

Post by 900HP »

MaxFlow wrote:I have been around a few 700hp/500hp sbc. Also a bunch of 800+hp/675hp sbc. Most of them costing 12,000 and up. So with a Dart SHP/somekind of reasonably priced head/valvetrain with non shaft style rockers, a 4150 carb, a decent oil pan/pump, cam that you don't have to change springs every weekend, a decent $2,000 rotating assembly, there is no way to make 700hp fairly reliably? What I'm speaking of here is around $7,000 in parts?
I see all these 550hp Procomp headed 383's all over the net for 2500. Another 150hp costs $10,000 and up? :wink: :wink: :wink:
Now with that in mind what combo?
If you don't use China parts (which I wouldn't) you aren't going to make $7G. (I don't think you could make it with China parts and then the reliable would go out the door) A good carb is a grand or more nowdays, cranks are $1400 on up, rods $800 on up, piston and ring sets are $600+, a block will set you back $1500-2000, roller cam and good lifters $1200, Heads for that power level $3000 or more assembled with good stuff, and there is a whole lot of parts I haven't mentioned and I'm over 7G's. Not to mention machine work, assembly time, misc., etc.
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Re: your recipe for budget 700hp sbc

Post by BEARCAT »

Wow, I must be doing something wrong. I see people claiming to make 700 to 750 on pump gas. Is this on 23 deg heads? Wow!!!! Here in the South if you can get 625 hp on pump gas you have done something and 710 hp on race fuel and 23 deg heads you have a great engine. I have seen 750 hp with 18 deg heads and race fuel and 830 hp hp with 13 deg heads. My true 685 hp in my 3100 lbs car runs low 9.20's all day long and out runs many others that make 750 hp plus in lighter cars. Someone please tell me how I can get more power.
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