383 stroker in Corvette 1979 ...how much power ? 1/4  mile ? - Chevy Forums at Chevy High Performance Magazine Chevy High Performance

383 stroker in Corvette 1979 ...how much power ? 1/4 mile ?

  
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383 stroker in Corvette 1979 ...how much power ? 1/4 mile ?

 
theundertakermc theundertakermc
New User | Posts: 13 | Joined: 03/08
Posted: 03/13/08
12:06 AM

just dropped a 383 stroker (originally 350 l98 from 1986 corvette)
how much hp could it make ? what about the 1/4 mile approx?

it has:

-dart pro 1 200 cc aluminium heads with 2.02 / 1.60
-comp cam xr-288hr lift 520/540 dur 236/242
-holley 750 mechanical secondaries
-edelbrock performer rpm airgap intake aluminium
-wesico tru forged 10:1 pistons
-th-350 rebuilt with stage 3 shift kit and 3500 stall converter
-3:55 gears
-stock tires but planning on getting semi-slicks
-Msd system etc....
i can not get it to the dyno since its kinda snowy around here ..would just like your opinions ! thanks  

 
55Guy 55Guy
Guru | Posts: 751 | Joined: 08/07
Posted: 03/14/08
06:35 AM

Tough to say how much power you'll have, but a well built 383 with the right parts will put a C3 Vette into the 11s with no trobule.  

 
theundertakermc theundertakermc
New User | Posts: 13 | Joined: 03/08
Posted: 03/14/08
01:51 PM

thanks for your answer , that's what i'm wandering ... do i have the right parts !?? also
my engine has been blueprinted ,and balance ...what difference it makes ?  

 
48olds 48olds
User | Posts: 100 | Joined: 11/07
Posted: 03/16/08
12:31 PM

Have you assembled the motor yet?If not,invest in a oil pan baffle,crank scraper and windage tray.You can get all three for about $75-100.Could pickup 30 hp or more,easy.No movilg parts on these additions to ever wear out or cause problems Without knowing all of the cam specs,I would GUESS around 450 hp.As far as 1/4 times,What does your car weigh?I am guessing roughly 3400 lbs.450 hp in a 3400 lb car,good tractoin might see an 11 second pass if everything works right.Good luck!!  

 
theundertakermc theundertakermc
New User | Posts: 13 | Joined: 03/08
Posted: 03/16/08
10:45 PM

thanks for the reply 4bolds !! i have a 383 stroker oil pan ...(was made for that stroker i mean) ..the engine has been assembled blueprinted balanced by someone i know ... as for the cam specs here it is :


cam specs - Comp Cam part # 12-433-8
grind - cs xr288hr-10

valve lift , INT- .520 EXH- .540
duration , INT- 288 EXH - 294

DUR @ 0.50. INT - 236 EXH 242

LOBE SEPERATION 110.00  

 
GibTG GibTG
Moderator | Posts: 1904 | Joined: 10/03
Posted: 03/17/08
10:17 AM

Don't get your hopes up thinking that you will gain 30 horsepower by reducing windage. At 6000 rpm with a very poor oil pan maybe you will net 15 horsepower but surely not 30. Maybe at 7500 rpm with a stock pan you could get 30 horsepower from scrapers, windage trays, etcetera but efficient aftermarket oil pans can almost completely eliminate these gains. I don't discourage their use but just want you to realize their effectiveness...  

 
Schum Schum
New User | Posts: 45 | Joined: 07/07
Posted: 03/17/08
03:15 PM

Go to page 96 of the May issue and it gives a link to a online dyno. I have a 383 with 190 cc AFR heads and it put me at 449 hp and 12.6 in the quarter. I don't know about the 449 hp but it did do a 12.6 last fall.  

 
joeyram095 joeyram095
New User | Posts: 7 | Joined: 10/09
Posted: 10/24/09
11:23 PM

did you have to get a special cam for the383  

 
Dave632 Dave632
User | Posts: 111 | Joined: 07/08
Posted: 10/24/09
11:44 PM

I would think the 450 hp is reasonable but I doubt it will run 11s. My GUESS would be mid 12s with slicks. Without slicks or drag radials you will struggle to get mid 13s.  

 
gettnlarge01 gettnlarge01
Enthusiast | Posts: 653 | Joined: 09/09
Posted: 10/25/09
05:54 AM

450 sounds about right for the parts used but if the engine wasnt assembled with the correct clearances,quench and etc you will be giving up power.  

 
p2-72chevelle383 p2-72chevelle383
Enthusiast | Posts: 301 | Joined: 08/09
Posted: 10/25/09
08:10 AM

in a vette with low gears and if it hooks youll get high 11s  

 
gettnlarge01 gettnlarge01
Enthusiast | Posts: 653 | Joined: 09/09
Posted: 10/25/09
03:24 PM

It'll be fun to drive on the track or street thats the main thing  

 

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