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Old 01-16-2007, 10:12 PM
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383 chevy 600 hp.

i wish to do small block chevy 383 with 600 hp. and run on pump gas , possible or not possible ?

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Old 01-16-2007, 10:25 PM
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re: 383 chevy 600 hp

With or without super/turbocharger?
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Old 01-16-2007, 10:31 PM
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I think you're stretching your goals just a little bit... Your best bet is through the use of a supercharger or nitrous...
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Old 01-16-2007, 10:38 PM
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aluminum heads, and the max boost you can possibly run without detonation with an 8-71 blower

u just may have a chance, but thats with like initial 7.5:1 comp plus your boost to get that kind of power
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Old 01-16-2007, 10:41 PM
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your next option would be the N/A 600hp 605ft/lb trq World Products Motown 454 small block for $10,995
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Old 01-16-2007, 11:00 PM
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http://www.chevelles.com/forums/showthread.php?t=156324

http://www.nastyz28.com/forum/showth...t=71913&page=2

http://speedtalk.com/forum/viewtopic.php?t=4877

More details in the March issue of HOT ROD...

Weekend warrior built as above in my "guesstimate" needs a minimum of 4:56 gears and 4500 stall...

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Old 01-17-2007, 08:03 AM
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Some people may say that this is not possible, and I agree that it is a pretty tall task to beleive, but in the newest Hot Rod, the following motor was built.

383
does not say compression but they do say that it did this on pump gas so you can probably guess around 11:1 max.
AFR 195cc street ported eliminator heads
Speed Demon 850 carb
Victor Jr intake
Comp 287TKR-6 cam (259 264 @.050 .645 .630 106 lsa, numbers are with 1.6 rockers on the intake)

615 hp @ 6800 RPM
528 ft lbs @ 5100 RPM

And this is only the street ported heads that are ~$1450 a set. The comps which flow quite a bit better are available for $2000 a set.

Adam
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Old 01-17-2007, 10:25 AM
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Quote:
Originally Posted by javamxcars
i wish to do small block chevy 383 with 600 hp. and run on pump gas , possible or not possible ?

Possibl n/a, but it will be very racey.
DoC
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Old 01-17-2007, 12:12 PM
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383 chevy 600 hp

without turbo or blower , carburator only and no nitrous , 11 to 1 comp. race alloy head and mecanic roller cam ,
a lot of my friends dont believe in this project !
possible or not possible ?
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Old 01-17-2007, 12:30 PM
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Quote:
Originally Posted by javamxcars
without turbo or blower , carburator only and no nitrous , 11 to 1 comp. race alloy head and mecanic roller cam ,
a lot of my friends dont believe in this project !
possible or not possible ?

That's 160% power to cube ratio. That would put anybody into the engine masters challenge and national recognition easily.

The only way for you to conclusively prove it is to spend your $ 15,000+ to build it.

Without some seriously expensive parts that engine will be on the edge of explosion every time it revs. And it could not be considered a "street" engine by any stretch of the imagination.
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Old 01-17-2007, 01:34 PM
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re: 383 chevy 600 hp.

Why not go Big Block? A 454 wouldn't be hard (in comparison) to get 600 HP out of. Or, if you have the money, you could build a Keith Black (www.keithblack.com) aluminum block 426 Hemi for under $15,000. That way you would have an engine with the weight of a small block, but the power of a large size Hemi. You can get all parts (somewhat) affordably in a Performance Automotive Warehouse catalog. (www.pawinc.com)

Anyway, that's my two-cents. Good Luck!
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Old 01-17-2007, 03:02 PM
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A 4" bore 383 won't make that power naturally aspirated on any real life dyno. Don't matter what head you use.
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Old 01-17-2007, 06:57 PM
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Quote:
Originally Posted by javamxcars
without turbo or blower , carburator only and no nitrous , 11 to 1 comp. race alloy head and mecanic roller cam ,
a lot of my friends dont believe in this project !
possible or not possible ?
If you have the "cubic dollars" to pay for it, the answer is YES.

Check the links I posted earlier, "bigjoe1" in the forums at speedtalk.com is Joe Sherman.
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Old 01-17-2007, 09:04 PM
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Car Craft built a blown 355 running on E85 with TFS 215's that apparently does 601hp (but we all know that magazine dyno's are a touch "happy", maybe...) The whole build is likely availiable at www.carcraft.com, but the skinny is: Magnusson high helix 122 blower, TFS 215 heads, 10.2:1 compression, Crane Powermax 288 blower cam, Crane 1.6 gold race rockers, careful spark tuning, and E85 @ 105 octane. If you can believe the mag, detonation free. Price: $6,340.38 US.
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Old 01-17-2007, 10:33 PM
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Another case of horsepower expectations creep. We started with 300hp, then 400hp, etc, etc.

The next post in this thread will be a guy who claims 700hp from his 283.
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