C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

A Stroked Eng.. ????

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Old Jun 19, 2006 | 04:20 PM
  #21  
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Man, this thread is a wealth of information regarding what people paid and what they had done.

Where did you all get your blocks? Used, New, origional? I wouldn't mind having a motor that looks stock but pounds the pavement with torque! But how do I decide if using my origional block is good?
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Old Jun 19, 2006 | 08:17 PM
  #22  
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If I do go with rebuilding mine to a 383, the same headers will work right ??? ( I Know, NOVICE question)....
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Old Jun 19, 2006 | 08:24 PM
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If I do go with rebuilding mine to a 383, the same headers will work right ??? ( I Know, NOVICE question)....
Yep, no problems there...I'm using the same headers on my 383 that I was using on my stock LT4

Where did you all get your blocks? Used, New, origional? I wouldn't mind having a motor that looks stock but pounds the pavement with torque! But how do I decide if using my origional block is good?
For LTx blocks there are no aftermarket choices, for L98 blocks, well the skys the limit really! GM has thier BowTie blocks, World Castings has their blocks...it just depends on how much you want to spend really.

Have your original block checked out by a machine shop, they can tell you whether it's good...but if you're currently using it without any problems then it should be just fine for a 383 upgrade.
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Old Jun 19, 2006 | 08:29 PM
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$8-$12K is right for a 383 gen2 motor done right, not being cheap with parts, machine work, or labor. The peripherals can greatly change the actual spent figure, so it should be itemized, so you know what you will be getting. At this range, you should be dealing with a legitimate shop, with insurance, the right tools for the job, experience, and a warranty, from 12-24k on the motor. However, I would want to know the experience level, and previous experience with the same setup, before I spent it.

That said, it's a **** in the wind, unless they have the ability to tune it, and I mean tune it well.
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Old Jun 19, 2006 | 10:13 PM
  #25  
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I think the best way to do this is to have a good donor motor and work on that when cash allows. That way you're not in a big hurry and start cheaping out. Plus you can still drive your love everyday and dream of the day the 383 goes in.

And where in the hell are you guys getting ripped off for 11 or 12k

We just finished one the way I described for well under 5k, that includes everything. We did do all the assembly ourselves, even if you add that in though I can't see it being 5-7 thousand in labor.
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Old Jun 20, 2006 | 12:02 AM
  #26  
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Originally Posted by ALLT4
I think the best way to do this is to have a good donor motor and work on that when cash allows. That way you're not in a big hurry and start cheeping out. Plus you can still drive your love everyday and dream of the day the 383 goes in.

And where in the hell are you guys getting ripped off for 11 or 12k

We just finished one the way I described for well under 5k, that includes everything. We did do all the assembly ourselves, even if you add that in though I can't see it being 5-7 thousand in labor.
I guess it would be the proper way to go and learn at the same time.. It would give me something to do and keep me out of trouble until i popped it in and riped on down the road .........
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Old Jun 20, 2006 | 01:23 AM
  #27  
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Man, I just can't get over it. For 11 to 12 thousand in a motor I'd better be throwing out the laundry at the end of the track!
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Old Jun 20, 2006 | 01:29 AM
  #28  
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i'm in the process of building a 383 right now and i can guess that i'm gonna spend around $7500 for just the motor...forget about driveline upgrades to handle the power. but here is a very important question. does anyone know an inexpensive oil pan that can be used with a stroker motor such as a 383? i've been pulling my hair out trying to figure out which one to use.

Last edited by farscape1a; Jun 20, 2006 at 01:45 AM.
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Old Jun 20, 2006 | 02:35 AM
  #29  
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i used my block and heads and intake when i done it. i used the eagle stroker kit around 1k from jegs, around 300 for 224/230 cam. the machine shop did all the block work crank, pistons, bearings ect.. valve job, stiffer springs. i picked up the block and two heads for about 35 hundred. i saved alot by putting it all togather and dropping it in the car myself . 11k? i guess if your replacing every single part with new, alt, starter, labor ect.... complete engine ready to drop. i just dont see 11k any other way. to stroke the block? or complete engine?
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Old Jun 20, 2006 | 03:43 AM
  #30  
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I want to build a 383 stroker for my vette. Is it a bad idea to reuse the original block that has 110K miles on it? The engine has been well maintained and of course its cast iron. It would of course have to be bored out anyway.
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Old Jun 20, 2006 | 04:20 AM
  #31  
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Mine is the original block, had about 110k on it.
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Old Jun 20, 2006 | 07:02 AM
  #32  
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Originally Posted by 4Ever21
I want to build a 383 stroker for my vette. Is it a bad idea to reuse the original block that has 110K miles on it? The engine has been well maintained and of course its cast iron. It would of course have to be bored out anyway.
I remember when I was younger man (40 now) I was reading a Hot Rod magazine and they were doing a 350 build up. The builder was respectable man, it might have even been Lingenfelter in his younger years. The guy said he likes to use "virgin but seasoned blocks" meaning they are untouched but used. The reason was something along the lines that you know that block's integrity is good and it has heat cycled about as many times as it's going to.

So I'd say go for it. Have it hot tanked and inspected, if all is well it's a really good base for a buildup.
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Old Jun 20, 2006 | 11:53 AM
  #33  
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By all means use your original block! The only reason to go aftermarket is in a true race situation where severe conditions mandate them or for huge cubes in a small block. Just have the block sonic checked first; this will allow you to verify the integrity of the cylinder walls. Once that is found to be ok, have the block line honed, bored and honed with plates, and decked. After that you are pretty much ready to go. As for the oil pan you can ding yours in a little bit to make the clearance. For the de-stroked comment earlier; all Nextel cup engines are huge de-stroker’s with a 4.150ish bore and a puny 3.25 stroke crank. This is partly due to them being rules limited to 355 cid. With this configuration they get the best of both worlds, high rpm capability and also if you look at cylinder head flow on a bench FOR THE MOST PART, a given head will flow more cfm into a larger bore than a smaller one. So they get also better flow numbers as well. Sorry for the long post!
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