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383 build ?

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Old Jun 6, 2005 | 11:40 PM
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St. Jude Donor '05
Default 383 build ?

next year i am wanting to do a 383 buildup on my 94 lt1 coupe. can anyone give me pointers or tips on things i will need to start buying i would like to buy all the parts i will be needing throughout the next year so when i tear it down for the rebuild i will have to pay for nothing but the machine work. what i am searching for is a complete list of parts i will need and any other upgrades that are suggested to go with the 383
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Old Jun 6, 2005 | 11:54 PM
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St. Jude Donor '04-'05-'06-'07
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As the old standard goes, "Do nothing till you talk to me!" I'll be doing this real soon. All parts are on order. Just need to find a four bolt block so I don't have to down the car while I build.
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Old Jun 7, 2005 | 12:00 AM
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unfortunately my will be the block i have in the car. so it will be down for awhile. but that will give me time to really clean the engine bay up while the machine work is getting done so is it a bigggg list
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Old Jun 7, 2005 | 12:05 AM
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From: Good health is merely the slowest possible rate at which one can die
St. Jude Donor '04-'05-'06-'07
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Originally Posted by myvettesblue
unfortunately my will be the block i have in the car. so it will be down for awhile. but that will give me time to really clean the engine bay up while the machine work is getting done so is it a bigggg list
There's nothing like getting that nice cleaning and detailing done while it's all apart. It's so much easier to keep nice from there on!
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Old Jun 7, 2005 | 12:09 AM
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i just hate pulling a motor with a new paint job of course it wont be new anymore then. but you know how it is once its new its always new right ( yep new paint, had it painted 5 years ago)
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Old Jun 7, 2005 | 12:16 AM
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From: Good health is merely the slowest possible rate at which one can die
St. Jude Donor '04-'05-'06-'07
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Originally Posted by myvettesblue
i just hate pulling a motor with a new paint job of course it wont be new anymore then. but you know how it is once its new its always new right ( yep new paint, had it painted 5 years ago)
Well at least it's not like you have to lean over the fenders on these cars!
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Old Jun 7, 2005 | 12:20 AM
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From: Howard PA
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Why are people so concerned with a four bolt block? The F body guy build build 383's with their two bolts and don't seem to have any problems. Can anyone point me somewhere where a two bolt LT1 has failed?

For that matter if a four bolt is what you really need. I can't immagine making enough power to break a main cap with ARP studs through it though. Buy a cheap two bolt LT1 and have splayed caps installed. Personally I think it's overkill.
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Old Jun 7, 2005 | 12:22 AM
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Originally Posted by Corvette Kid NC
Well at least it's not like you have to lean over the fenders on these cars!
this is true wonder if you could pull the motor from the side so you dont have to remove that heavy hood
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Old Jun 7, 2005 | 12:24 AM
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From: Good health is merely the slowest possible rate at which one can die
St. Jude Donor '04-'05-'06-'07
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Originally Posted by myvettesblue
this is true wonder if you could pull the motor from the side so you dont have to remove that heavy hood
Oh hell yes, no reason to remove the hood at all.
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Old Jun 7, 2005 | 12:25 AM
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Originally Posted by ALLT4
Why are people so concerned with a four bolt block? The F body guy build build 383's with their two bolts and don't seem to have any problems. Can anyone point me somewhere where a two bolt LT1 has failed?

For that matter if a four bolt is what you really need. I can't immagine making enough power to break a main cap with ARP studs through it though. Buy a cheap two bolt LT1 and have splayed caps installed. Personally I think it's overkill.
its all bragging rights i have had heavily built 2 bolt blocks myself and never had a problem. but the vette already has a fourbolt block so i have nothing to worrie about there
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Old Jun 7, 2005 | 12:27 AM
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Originally Posted by Corvette Kid NC
Oh hell yes, no reason to remove the hood at all.
i thought it would work
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Old Jun 7, 2005 | 12:27 AM
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i'd rather find a 2 bolt block and have splayed 4 bolt caps installed


food for thought
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Old Jun 7, 2005 | 12:29 AM
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I've got some real nice C4 fender covers for sale
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Old Jun 7, 2005 | 12:39 AM
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Originally Posted by Daffy427
I've got some real nice C4 fender covers for sale
i will take two of them they will definitely keep the scratches off my fenders
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Old Jun 7, 2005 | 02:15 AM
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I just finished my 383(still in break in). Used my 2 bolt block but had it decked, bored.. ... all that good stuff. I've been told the 2 bolt block is plenty strong. I have a 300 shot on top of it all and both the builder and the machine shop guy were unconcerned about the block not holding up. Of course, I had to put a lot of money into the rotating assembly.

I could give you my parts list but it's all common sense stuff with some exceptions because I changed out the TPI for a new intake and a demon 4 barrel.

Enjoy your rebuild.... sure your 'vette will be down but it's exciting times!

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Old Jun 7, 2005 | 03:53 AM
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Originally Posted by ALLT4
Why are people so concerned with a four bolt block? The F body guy build build 383's with their two bolts and don't seem to have any problems. Can anyone point me somewhere where a two bolt LT1 has failed?

For that matter if a four bolt is what you really need. I can't immagine making enough power to break a main cap with ARP studs through it though. Buy a cheap two bolt LT1 and have splayed caps installed. Personally I think it's overkill.
From my expreiance it isn't so much breaking of the caps that you are trying to avoid. Instead you want to prevent ANY kind of movement of the crankshaft other than rotation. Thus the splayed main caps, they simply will not move side to side at all, that is why they went from straight 4 bolt mains to the splayed caps.
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Old Jun 7, 2005 | 06:58 AM
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From: 1990 383 Stroker Baltimore Maryland
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Originally Posted by 1991camaro
i'd rather find a 2 bolt block and have splayed 4 bolt caps installed


food for thought
This is what I had done to my 383 Stroker.
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Old Jun 7, 2005 | 10:00 AM
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I went the splayed as well,
Now for the list
(This will depend on what your goals are)
Heads:
(Ported LT1 castings min LT4 or aftermarket would be better)
Rotating assy:
Recomend Forged 3.75 crank 6.00 Rods and Forged pistons (I like SRP) , Plasma moly file to fit rings, Clevite or King main and rod bearings, durabond cam bearings,
Mis:
Gaskets, lots of gaskets Felpro
Cam, (Bump stick of your choice)
Timing set (Recomend GMPP LT4 HD)
ARP bolts (Head, Main studs and FW)
Oil pump
Opti (while you are there)
Water Pump (again why not)
Intake porting

Well thats the short list good luck and what ever you planed one spending take it and x2
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Old Jun 7, 2005 | 04:57 PM
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Anyone here ever heard of peening the area just on the outside of the mains on a 2 bolt block? It's supposed to dis-shape the walls that center the cap and make it a really tight fit.

Basically you take a blunt, wide chisle, slide it down along the wall of the cap on either side and give it a good healthy smack!

If you did this along with ARP fasteners and proper torque, explain to me how the cap can move side to side? Even with doing nothing they should be a snug fit.

Ohh, one other thing I remember, when line honing the main bores the oil pump is supposed to be torqued to final spec. You want any forces that will be presesnt on the caps during honing that will be there when the crank is in. I'm not sure if machine shops do this not? For real it's the ultimate in analness.

Last edited by ALLT4; Jun 7, 2005 at 05:01 PM.
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Old Jun 7, 2005 | 05:17 PM
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Originally Posted by FD2BLK
I went the splayed as well,
Now for the list
(This will depend on what your goals are)
Heads:
(Ported LT1 castings min LT4 or aftermarket would be better)
Rotating assy:
Recomend Forged 3.75 crank 6.00 Rods and Forged pistons (I like SRP) , Plasma moly file to fit rings, Clevite or King main and rod bearings, durabond cam bearings,
Mis:
Gaskets, lots of gaskets Felpro
Cam, (Bump stick of your choice)
Timing set (Recomend GMPP LT4 HD)
ARP bolts (Head, Main studs and FW)
Oil pump
Opti (while you are there)
Water Pump (again why not)
Intake porting

Well thats the short list good luck and what ever you planed one spending take it and x2
I did everything FD2 did as well, except did not splay the mains (rather replaced with Billet and a Billet front strap), and went with JE pistons. Everything else is right on! You can definitely plan on spending at least twice what your original budget is. Don't ask me how I know.

Mike
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