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Old 09-26-2012, 09:13 PM
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sbc hp?

ok so im was wanting to build a sbc but i wanna know about how much hp i would make to the wheels and crank if anyone could possibly give me a idea. also please tell me some ideas and opinions on what i should do different or what to make it better all info would be much appreciated

Engine:
4 bolt main 350
400 crank
383 stroker pistons
a medium size cam
327 double hump heads
msd ingition kit
holly carb 650 most likely
good intake maybe high rise not forsure yet tho
long tube headers

Tranny:
350 turbo
shift kit
2200 - 2500 stall

Rear End:
chevy 12 bolt
373 gears

also this is going in to a 89 single cab shortbed chevy truck

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Old 09-26-2012, 09:21 PM
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What are your goals? You're looking at the potential for a mismatched money pit that's probably going to disappoint you.
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Old 09-26-2012, 09:57 PM
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420 hp if the medium cam matches. a 750 carb is good for a 383.dont buy those heads,but if you have them they work fair
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Old 09-26-2012, 10:19 PM
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ok so what what heads should i buy
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Old 09-26-2012, 10:23 PM
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or my next idea was to build the same tranny and rear end just with a rebuilt 454 with heads intake carb and msd with a medium size cam
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Old 09-26-2012, 10:25 PM
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well i want to build a motor that is on a $2500 budget but i want it to be reliable and at the same time have a little bit of *** so i might just go with a 454
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Old 09-26-2012, 10:31 PM
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If you can buy a 454 core cheap,then maybe a stock rebuild with a cam? engines cost money to build,g note for machine work and balancing doesnt leave much for parts.
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Old 09-26-2012, 10:33 PM
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ya my dad is a machinest so i wasnt really worried about that he said he would do the machining i just got to make the money to build it
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Old 09-26-2012, 10:41 PM
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go find an engine and get busy. cant bore the engine until you buy the o/haul kit. Maybe dad can clean up a set of heads for you too.Then pick out the cam/manifold/carb with w/e money is left over
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Old 09-26-2012, 10:48 PM
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ya i think im just going to go out and get a 454 tomorrow thank you for the help and info
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Old 09-27-2012, 09:44 AM
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Quote:
Originally Posted by Short-Bed Chevy View Post
ya i think im just going to go out and get a 454 tomorrow thank you for the help and info
For a lot less money and easier to find, you might think about a 350 cid small block Chevy L31 Vortec long block in good used condition. After a basic rebuild, installing an intake and carb, and a HEI distributor along w/swapping the cam and valve springs will get you an easy 400-450 hp. If you're not used to driving a vehicle w/that much HP, you'll be impressed!

Even a factory hydraulic roller cam short block that may have originally had the swirl port heads (mainly good for 4500-and-below rpm use) can use the Vortec heads.

More 383 stroker engine build info here.

General GM info here, look for anything that interests you.

Nowadays, a lot of guys are swapping in the Gen 3 SBC engines used in trucks and RV's. They're getting more affordable all the time and they can make VERY good power w/little modification- basically swapping in an intake and ignition box along w/headers will wake them up real good. More on the Gen 3 engines: 325 questions

Good luck.
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Old 09-29-2012, 12:10 PM
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i just bought my 454 block and ordered the rebuild kit im just going to get some nice heads, a nice cam, intake, throttle body, and direct port it better gas mileage and still a little bit of power btw I'm putting pistons and chromemolly rings in it if anyone was wondering thanks for all the help and info much appreciated
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Old 09-29-2012, 12:32 PM
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sounds great,let us know how it turns out.
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Old 09-30-2012, 12:12 AM
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will do but thanks again
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Old 09-30-2012, 04:59 AM
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Quote:
Originally Posted by Short-Bed Chevy View Post
i just bought my 454 block and ordered the rebuild kit im just going to get some nice heads, a nice cam, intake, throttle body, and direct port it better gas mileage and still a little bit of power btw I'm putting pistons and chromemolly rings in it if anyone was wondering thanks for all the help and info much appreciated
I'm guessing you are referring to molybdenum inlaid or 'plasma sprayed' rings (commonly called moly rings) . These rings are usually made of cast iron w/a groove for the inlay or have their surface impregnated w/moly plasma. So the moly rings we commonly use shouldn't be confused w/chrome molybdenum steel.

Now, there are steel rings used in some high effort builds (boosted/nitrous, etc.). And there are chromed rings mostly used in dirt racing and a few other apps, but these rings are very rarely used in street-type builds. The reason I mention this is the machinist will need to know the exact type of ring you are using so he can prep the cylinders correctly during the final hone stage- NOT just to point out an error.

Feel free to ask anything that comes to mind, just do it BEFORE spending your money.
You'd be surprised how many guys get the cart ahead of the horse and ask too late about whether they should do this or buy that...

And good luck on your build!

Last edited by cobalt327; 09-30-2012 at 05:05 AM.
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