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02-20-2016, 02:23 AM
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#1 |
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Registered User
Join Date: Feb 2016
Location: Salt Lake City
Posts: 34
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396 Stroker Vortec?
Anyone ever done this out of a 350? my 98 has a dead motor and ive heard about doing a 396 stroker out of a 350 instead of a 383 Just how far can you bore and stroke a 350 before you hit water? I want to make around 450-550hp and torque around the same numbers at mid-range rpms
Last edited by EmeraldFlame; 02-20-2016 at 02:35 AM. |
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02-21-2016, 08:08 AM
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#2 |
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Registered User
Join Date: Jun 2008
Location: Lubbock, TX
Posts: 2,047
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Re: 396 Stroker Vortec?
It's not worth giving up cylinder wall material for a few cubes! If you can get your hands on a 3.8" stroke crank, just bore it enough to clean up and go from there.
You ain't getting that kind of hp/tq with OEM intake and injection, so plan on a carb swap as well. A good 383 with mild cam and good tune will get close to 400 and put a big smile on your face while maintaining some degree of reliability. If you're giving up the injection, go big block and don't look back. |
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02-21-2016, 04:32 PM
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#3 | ||
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driving is in my blood
Join Date: Dec 1999
Location: Mesa AZ
Posts: 5,763
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Re: 396 Stroker Vortec?
Quote:
Quote:
__________________
-78 c10 short/step: 388cid, M20, 5/5 drop, lots more. Playtoy and first vehicle. -98 c1500 x-cab: 5.7L, 17" rims, 5/6 drop, flowmaster, helper bags,NBS rear disk brakes. -02 Suburban 4x4: leveled front -CBR600F4i, CBR600RR, CBR1000RR, and standup skis DISCLAIMER: I cant spell for the life of me. |
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02-21-2016, 07:58 PM
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#4 |
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Registered User
Join Date: Jun 2008
Location: Lubbock, TX
Posts: 2,047
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Re: 396 Stroker Vortec?
Any sites with good info on the intake? How much will it support - 500hp? 600hp?
Thanks, you've got my curiosity up, I have an engine for just such an application. |
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02-21-2016, 09:08 PM
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#5 |
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Registered User
Join Date: Jan 2006
Location: Smithfield, VA
Posts: 1,501
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Re: 396 Stroker Vortec?
Fuel management won't support it. Google CSFI or spider injection. It will support a 383 which I just recently decided to do with my RamJet intake system and Fast EFI 2 system. Be a while though.
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02-22-2016, 02:29 AM
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#6 |
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Registered User
Join Date: Feb 2016
Location: Salt Lake City
Posts: 34
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Re: 396 Stroker Vortec?
Is a 98 vortec 350 out of a truck a l34? Im having trouble finding cams for one might just stroke a 6 liter to a 408
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02-22-2016, 05:05 AM
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#7 |
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Registered User
Join Date: Jan 2006
Location: Smithfield, VA
Posts: 1,501
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Re: 396 Stroker Vortec?
350 Vortec is L31. There are 3 variants.
Consider this http://www.jegs.com/i/Chevrolet+Perf...32531/10002/-1 This was actually almost a grand more 2 Years ago. |
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02-22-2016, 03:43 PM
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#8 | |
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driving is in my blood
Join Date: Dec 1999
Location: Mesa AZ
Posts: 5,763
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Re: 396 Stroker Vortec?
Quote:
As for the vortec fuel managment not supporting the HP, its just a computer program. As such you can modify it. Plenty of people have.
__________________
-78 c10 short/step: 388cid, M20, 5/5 drop, lots more. Playtoy and first vehicle. -98 c1500 x-cab: 5.7L, 17" rims, 5/6 drop, flowmaster, helper bags,NBS rear disk brakes. -02 Suburban 4x4: leveled front -CBR600F4i, CBR600RR, CBR1000RR, and standup skis DISCLAIMER: I cant spell for the life of me. |
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02-22-2016, 06:10 PM
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#9 |
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Registered User
Join Date: Jun 2008
Location: Lubbock, TX
Posts: 2,047
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Re: 396 Stroker Vortec?
I have an LT5 in my 5.7, my son has one in a stroker. Mine pulls strong for what it is. Sometimes you can find the LT4 and LT5 at the 'vette sites.
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