LT1-LT4 Modifications 1993-97 Gen II Small Block V8

questions on putting a 383 in

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Old May 7, 2009 | 05:41 AM
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Default questions on putting a 383 in

what all is involved in putting a 383 in as far as computer and injectors wire harness any advice
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Old May 7, 2009 | 06:43 AM
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usin your stock block and takin it to a machine shop right? ul need to get the computer tuned and ul need bigger injectors and ur stock harness will do.
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Old May 7, 2009 | 07:42 AM
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Originally Posted by z28rob18
usin your stock block and takin it to a machine shop right? ul need to get the computer tuned and ul need bigger injectors and ur stock harness will do.
not true. i ran stock injectors on my 383 and she ran perfectly fine. but yes like rob said you do need to get your computer tuned. hit up bryan at pcmforless. hes a good guy and knows what he is doing
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Old May 7, 2009 | 07:45 AM
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/\ honestly it all depends on how big you are building this motor. mine was just a 383 with a LT4 cam stock LT1 Heads and Intake. so it really wasnt "built" just had a few extra cubes. if thats similar to what your doing then you can use stock injectors. can we get a lil more info on your build and how radical you wanna go!!
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Old May 7, 2009 | 07:55 AM
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If you are going to put a LT4 hot cam in it don't build a 383.
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Old May 7, 2009 | 08:17 AM
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lt4 hotcam is useless in a 383 would be like making a 305 cam work in a 350. up your injectors to 32 or so lbs and get the 503 cam and thatll be a nice street motor with good power.
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Old May 7, 2009 | 08:23 AM
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Originally Posted by buzz12586
If you are going to put a LT4 hot cam in it don't build a 383.
Amen.
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Old May 7, 2009 | 08:30 AM
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Originally Posted by TheDon619
lt4 hotcam is useless in a 383 would be like making a 305 cam work in a 350. up your injectors to 32 or so lbs and get the 503 cam and thatll be a nice street motor with good power.
Even the 503 is too small for a 383.
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Old May 7, 2009 | 10:06 AM
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well my car ran perfectly fine. but i know it had more to it.
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Old May 7, 2009 | 10:32 AM
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Yea it will run fine but it could easily make more power without losing any driveablility.
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Old May 7, 2009 | 07:58 PM
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Default building a 383

Sorry guys just got off work I am looking for a way to get about 400-500 RWHP. not spending a whole lot. I have the K&N cold air and I am getting the 58mm TB Long tube headers so i need to know what to do to the engine to push it to 400-500 RWHP
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Old May 7, 2009 | 08:47 PM
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What do you want, 400 or 500? There is a HUGE difference in how to achieve either one.
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Old May 8, 2009 | 06:33 AM
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LE2-3 package on a 383 should easily get you 400WHP. 500WHP is a completely different animal.
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Old May 8, 2009 | 06:39 AM
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Originally Posted by buzz12586
LE2-3 package on a 383 should easily get you 400WHP. 500WHP is a completely different animal.
agreed. its funny how much more it takes to make 500whp
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Old May 8, 2009 | 06:42 AM
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im gonna say upgrade injectors buy some EV1 Style Fuel Injectors - Red - 30 lbs off a mustang.... Thats what i did for my full boltons build....
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Old May 10, 2009 | 08:07 AM
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ok well i got completely flamed when i threw up the fact i had a LT4 in my 383. i just snapped my crank about a week ago and im throwing the car back together. i cant afford heads right now. what should i do? put the motor back together and deal with it lacking power. or what would be a good. (under 500$) setup?
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Old May 10, 2009 | 11:39 AM
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Step up the cam now, while you have easy access to it, then later when you have the money pull the heads and send them to LE or AI. Still wouldn't go too aggressive on the cam with stock heads b/c it will be a waste and you might need bigger fuel injectors which means more $$$, but you might be able to get by if you up the fuel pressure at the rails.
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Old May 10, 2009 | 12:36 PM
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WHAT CAM should i do? what would be a nice aggresive sound with all over powerband. but still be comfortable to drive daily?
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Old May 10, 2009 | 03:35 PM
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Originally Posted by 1slo_camaro
WHAT CAM should i do? what would be a nice aggresive sound with all over powerband. but still be comfortable to drive daily?
I would say have something custom ground, its only $40 more than an off the shelf cam from Comp and they'll get you exactly what you want. The only problem is you'll have to spend more money on some better springs (assuming you're running LT4's now), but you'd have to do that on any more aggressive cam.
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Old May 10, 2009 | 03:40 PM
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no right now im stock top end. well minus the cam. thats why im kinda hesitant to throw anything crazy in cause im trying to not have to do a valve job. my main concern is getting the car back on the road right now and not have to worryabout anyhing breaking to bad. but trying to get a few things straight while the motor is out.


MARKWATERMAN- sorry for stealing the thread bro. ill start a new one in a sec lol. sorry again
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