budget 383
10-29-2002, 09:11 PM
#1
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Car: 89 Irocz
Engine: L98
Transmission: 700r4
Axle/Gears: 342
budget 383
Hey I m going to be putting together a mild 383, now I m doing a budget build up. Now I'm having a arguement with my buddy, cause I m not going to have it blueprinted and blanced, he's trying to tell me it won't last a year.
Now my other buddy that's going to help me build it has mad skills in motor build, he's got a 11 sec car, soon to be 10's . So I'm not worried about putting it together. Now for all you guys who did a budget build up how long have you had it and how is holding up.
Now my other buddy that's going to help me build it has mad skills in motor build, he's got a 11 sec car, soon to be 10's . So I'm not worried about putting it together. Now for all you guys who did a budget build up how long have you had it and how is holding up. 
10-29-2002, 10:04 PM
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Car: 1989 IROC-Z
Engine: LS1
Transmission: T56
I dont know if this is B.S. or not but I have been looking to do the same thing as u are goin to do and asking the same questions but I have heard of very niice budget 383's that last longer than 100,000...not exactly sure if true or not but thats what I have heard... I wouldnt doubt it if it did go that long though.
10-30-2002, 09:15 AM
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Car: 84 SVO
Engine: Volvo headed 2.3T
Transmission: WCT5
Axle/Gears: 8.8" 3.73
Definitly get it balanced, and if your going to do it do it right and blueprint it (it just means you triple check clearances and measurements as you assemble it, be prepared to "use up" a set of bearings tho) HTH, Bob
10-30-2002, 10:10 AM
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Car: 1991 Firebird
Engine: 427 LSX
Transmission: Turbo 400
What cam? Heads? If it is not radical you will be fine. Start spinning it a bit and your friend my be right.
10-30-2002, 07:25 PM
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Car: 89 Irocz
Engine: L98
Transmission: 700r4
Axle/Gears: 342
well I'm going to get it, balanced then, and the cam I'm going to run is going to have a power band of 5800, it's a comp cam Part # 276HR-14 and a set of stock heads, ported. It's going to get beat on ever so often but not abused. So how long do you think this should this set up last?
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10-30-2002, 08:35 PM
#8
warning
i know what i'm about to say should be common practice to most, but somtimes gets overlooked......
be sure the first thing you install is the cam... this way if it hits "depending on the rods" you can fix the problem quick before getting in deeper......
i built a 383 with scat stuff and speedpro flattops, the cam hit pretty good on certain places because of the lift and duration, practically square lobes........ it was the xe282hr cam.... not to far away from the one you are speaking of......
just figured i'd throw that in...
good luck dude, and i hope everthing goes ok.....
be sure the first thing you install is the cam... this way if it hits "depending on the rods" you can fix the problem quick before getting in deeper......
i built a 383 with scat stuff and speedpro flattops, the cam hit pretty good on certain places because of the lift and duration, practically square lobes........ it was the xe282hr cam.... not to far away from the one you are speaking of......
just figured i'd throw that in...
good luck dude, and i hope everthing goes ok.....
10-31-2002, 04:06 AM
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Car: 89 formula
Engine: 383
Transmission: 700R4
badgta did you use Scats reg I-beam rods or the stroker rod with the 7/16 cap screws?The stroker rods have more clearence thats what im useing. http://www.scatcrankshafts.com/forge...eamrods02.html Im installing my cam today will let you know if it hits.
10-31-2002, 05:24 PM
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Car: 89 formula
Engine: 383
Transmission: 700R4
I just put the cam(GM hot) in my engine and it has plenty of room with the stoker rods.How do you like the XR282HR I thinking of switching to the 282 after get through emissions.If any body wants to know I got the rods from http://www.flatlanderracing.com/index.html
Last edited by e-man; 10-31-2002 at 05:27 PM.
11-01-2002, 05:41 AM
#12
man......
thats were i got mine......... they are good people........
i called them yesterday and was going to buy the rods you spoke of to replace mine...... he said the wouldn't give me no more rod to block clearence and barley anymore cam clearence......
you figure it would were the bolt is ressed into the rod but he said where the bolts bigger it will reverse any clearence attributes of it......
your running 6" rods right? this may be the reason it clears, maybe not.....
i'm glad everthing worked for you...... the comp xe282hr cam is badass......
i called them yesterday and was going to buy the rods you spoke of to replace mine...... he said the wouldn't give me no more rod to block clearence and barley anymore cam clearence......
you figure it would were the bolt is ressed into the rod but he said where the bolts bigger it will reverse any clearence attributes of it......
your running 6" rods right? this may be the reason it clears, maybe not.....
i'm glad everthing worked for you...... the comp xe282hr cam is badass......
11-01-2002, 09:14 AM
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Car: 89 GTA
Engine: 383
Transmission: 4L80E
Axle/Gears: 12 bolt-3.73
For a budget build up, you the stock 5.7 rods with a scat or summit cast crank with trw pistons. I had the same combo and the stock pink rods cleared everything with no clearancing necessary on the block, and no problems with the cam.
If you don't have the money, you don't have to get it balanced. It's not going to fall apart once you start it.
If you don't have the money, you don't have to get it balanced. It's not going to fall apart once you start it.
11-01-2002, 10:00 AM
#14
woah.....
Originally posted by 89gta383
If you don't have the money, you don't have to get it balanced. It's not going to fall apart once you start it.
If you don't have the money, you don't have to get it balanced. It's not going to fall apart once you start it.
they require a 400 balancer and external balance flexplate on a 86 up car.....
when i had mine balanced they guy said it was way off, he said he tried it without the balancer and it really went way off.....
why do you think theres holes in the crank thoriows from the factory???? they're factory balanced......
if ya want to save money on machining, get a prebalanced kit from powerhouse or such, but if you want hand selected parts, it will require balancing most times.....
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