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383 stroker build

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Old Apr 21, 2014 | 06:25 PM
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Default 383 stroker build

I'm am trying to piece my motor ('98 LS1 M6) together into a decent 383 stroker after my oil pump failed on the highway. I made it home but I can hear the damage to the bottom end so I decided to rebuild it better and stronger, but my funds are somewhat lacking. I have already purchased a high flow/pressure melling oil pump (p/n 10296), ls7 lifters, ls2 trays, and the comp cams trunion upgrade kit, but now I want to focus on the bottom end. I can throw another $3,000 into the rebuild and was wanting to go with the Lunati Voodoo kit for ~$2,000. my question is this. Is it possible to build the 383 with stock heads, intake just to get the motor together and upgrade parts as I go? And what are the minimum requirements just to run the 383 kit in an ls1 besides a cam and bigger injectors? Thanks for the help and and advice is appreciated as always. Thanks. -Rich

P.S All assembly work will be done by my associate at work and myself. I have a coworker that builds ecotec motors for midget racing so I trust his abilities, but he just doesn't know anything about LS motors.
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Old Apr 21, 2014 | 06:49 PM
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I suggest you let someone with ls knowledge build it...but you can run stock everything make sure you get a tune for the more air it's going to suck in
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Old Apr 21, 2014 | 06:50 PM
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Are you sure going with the 383 is your cheapest option here?
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Old Apr 21, 2014 | 06:53 PM
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You can also get a short block already build from Thompson's for a great price
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Old Apr 21, 2014 | 07:01 PM
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Originally Posted by HCI2000SS
Are you sure going with the 383 is your cheapest option here?
cheapest? No, I'm sure I could just have the crank turned, throw in a new set of bearings and be on my way, but we all have to start somewhere and if I have to pull the motor I might as well do the job once and be done with it. Then I can throw in the supporting mods throughout the summer.
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Old Apr 21, 2014 | 07:05 PM
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Originally Posted by chevybayboy
You can also get a short block already build from Thompson's for a great price
It's funny that you comment. I've been following your 383 build lately and it really solidified my motivation to do the stroker route. good work!
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Old Apr 21, 2014 | 07:06 PM
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Originally Posted by PSnewbie
cheapest? No, I'm sure I could just have the crank turned, throw in a new set of bearings and be on my way, but we all have to start somewhere and if I have to pull the motor I might as well do the job once and be done with it. Then I can throw in the supporting mods throughout the summer.
Well when I meant cheapest I meant compared to upgraded options like maybe a 6.0 iron block. I'm just wondering if it would be more cost effective to sell the LS1 block and go the 6.0 route. Just a thought, since you said funds were limited
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Old Apr 21, 2014 | 07:18 PM
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Originally Posted by PSnewbie
It's funny that you comment. I've been following your 383 build lately and it really solidified my motivation to do the stroker route. good work!
Thanks alot that added torque from the 383 you will love it
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Old Apr 21, 2014 | 07:20 PM
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Originally Posted by HCI2000SS
Well when I meant cheapest I meant compared to upgraded options like maybe a 6.0 iron block. I'm just wondering if it would be more cost effective to sell the LS1 block and go the 6.0 route. Just a thought, since you said funds were limited
Oh, I gotcha. How well would that transplant in as far as physically and wiring harness compatibility?
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Old Apr 21, 2014 | 07:20 PM
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You can build the shortblock and just swap over all the parts, even the stock cam and valve train if you like.

Keep in mind, which your buddy may not realize, that with the 4" stroke the windage tray will need to be spaced out with washers to clear the rods. This in turn will affect oil pan to pickup clearance, which should always be checked anyways.
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Old Apr 21, 2014 | 07:23 PM
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Originally Posted by PSnewbie
Oh, I gotcha. How well would that transplant in as far as physically and wiring harness compatibility?
It drops right in with no modifications. This is the route I went when I blew my Ls1
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Old Apr 21, 2014 | 08:27 PM
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I'll have to think about that and compare the choices. But it is good to know I can just throw in the stroker kit for now. Thanks guys.
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Old Apr 22, 2014 | 09:22 PM
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I think this is the route I'm going to take. But I had a cam only ls1 that threw a rod ao I can swap in the 232/234 cam and while I got it all apart may mildy port and polish the 241s. Only thing about the tms shortblock and other is if u want to spray or anything apparently u need steel rings and they need to be installed properly for nitrous. I would think with that cam 400whp shouldn't be heard to top seeing as some ppl have hit 400 with stock bottom end
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Old Apr 22, 2014 | 11:52 PM
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We have a really good price on complete 383 rotating assemblies, and can get you everything you need from parts to tech support and even remote tuning, or tuning help.
We can ship them already balanced, so you dont have to worry about anything. We offer them with file fit rings or we can get pregapped if you want as well.
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Old Apr 23, 2014 | 03:30 PM
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I am running the Lunati 383 set up in my car with stock LS6 heads and intake. MS3 cam with boltons.

445rwhp 428rwtq.
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