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Old 01-08-2008, 09:13 PM
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Horsepower Estimate lol please

I have a 350 200 horse stock motor with these parts can u tell me if this is close to 400 horsepower thanks


Holley Double Pumper 700 cfm Mechanical Secs
Torker II manifold 2500 to 6500 rpm range
A Summit CAm Lift is 466 in and 488 ex durations is 224 to 232
Afterburner Headers
Double Roller Chain and gear

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Old 01-08-2008, 10:53 PM
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What do you have for heads?

If they're stock them in going to say you are right around ~300hp. Your cam and intake do not quite match. You need to either go with a cam with its powerband in the higher revs or an intake that's efficient lower. It won't show as much at the track, but on the street it will be doggish on the low end. A nice dual plane like the Performer RPM would be your best option for that setup.

If you want 400hp you're going to need some good heads and a bigger cam.
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Old 01-09-2008, 01:14 AM
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You didn't say what year so I'll guess you're around 8-8.5 to 1 compression. With the low compression and probably 76 cc smog heads the combination you are quoting just isn't going to work. Yes, it will run, but not very good.

My opinion....the double pumper is a no-no for the street, just a semi-controlled leak. The Torker ll or any single plane is not optimum for the street, they are high rpm intakes and with your heads and compression it would probably be all wheezed out at 5500. Again, with the stock engine that cam, though not radical is too much. With your stock engine and the right combination of parts that you want to change you may see 325 hp. @ the flywheel.
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Old 01-09-2008, 01:35 AM
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they got a good point I would run a 600cfm holley vacuum secondary,cyclone/performer intake,and keep that cam,you could probably upgrade to vortecs and do really good you would be suprised how much better it will feel afterwards trust me
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Old 01-09-2008, 01:40 AM
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Performer RPM will be t!ts with that cam... but the others are right. How about casting numbers on those heads.
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Old 01-09-2008, 06:08 AM
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ya ok the heads are

333882 just stock 70 ccs
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Old 01-09-2008, 06:36 AM
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I think you mean 76cc's stock. I believe that is where they were from the factory they may be as low 72cc but that is about it. Make sure you check them for cracks. I just had a set that a guy took off a running driving motor and took them to get them checked and they had 3 cracks in one head and 2 in the other. Between the valves was the biggest problem. You owe it to yourself to get a better set of heads. Something with smaller combustion chambers and better flow.
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Old 01-09-2008, 11:51 AM
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Yeah 882's are going to clog things up. I doubt you will see anywhere near 400hp with those. What kind of budget are you working with? I'm sure we could give you some suggestions to meet your goal.
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Old 01-09-2008, 11:58 AM
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Best ways to get 400 hp out of a sb

I have a 350 with a high end cam and manifold and headers and a 700 cfm carb

I was wondering wat would be the best parts from here to get 400 ponies plus
Without a cheater kit

And I have a double roller chain with a advance and retard key if i advanced or retarded it which way would i get the most power out of it.
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Old 01-09-2008, 12:12 PM
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Quote:
Originally Posted by chevy350_Camd
I have a 350 with a high end cam and manifold and headers and a 700 cfm carb

I was wondering wat would be the best parts from here to get 400 ponies plus
Without a cheater kit

And I have a double roller chain with a advance and retard key if i advanced or retarded it which way would i get the most power out of it.
Specifically, what cam, heads, pistons, compression.

400 horses from a 350 is not too difficult with some right parts.

Bogie
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Old 01-09-2008, 01:31 PM
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get some 190cc aftermarket heads and a AirGap intake- that alone should put you close with your combo. put compression at about 9.5:1 and the cam duration at about 235/240 @.050"
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Old 01-09-2008, 01:31 PM
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Adding this part will definately get you 400+ ponies

http://store.summitracing.com/partde...5&autoview=sku
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Old 01-09-2008, 02:05 PM
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Quote:
Adding this part will definately get you 400+ ponies
That wouldn't be a good HP/$$ value for 400HP, plus you'd have to change the cam and pistons to blower specific type stuff - not to mention crank/rods.


Like oldbogie said, it's not hard.

What's your 'budget'?

What do you have now, specifically, all of it?
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Old 01-09-2008, 02:10 PM
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No ****, I was being sarcastic. He could just bolt it on as is, it would make way more than 400 horse for at least 10-15 seconds. On 125 octane fuel.
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Old 01-09-2008, 02:30 PM
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okay so wat kinda heads

I was thinking of a 383 and couyld u give me some advice for 400 + for 2000

Like any parts that would give me aloty other than a blower lol and nos
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