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Questions about a 5.7 engine swap performance in s10!

This is a discussion on Questions about a 5.7 engine swap performance in s10! within the Performance forums, part of the General Discussion category; I'm going to be rebuilding my s10 from the ground up and throwing a Vortec v8 5.7 from a (96-99?) ...

  1. #1
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    Questions about a 5.7 engine swap performance in s10!


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    I'm going to be rebuilding my s10 from the ground up and throwing a Vortec v8 5.7 from a (96-99?) Fullsize. Before i put it in the car i want to do some performance mods to it too bump the horsepower up. My goals for the truck are to be a daily driver (streetable) with around 300 horse and 380 torque to the GROUND.

    From what i've been reading around here though it seems the stock vortec intake has flow problems over 350 horse and is extermly expensive to change to the marine intake.

    • Couple things i've been thinking about is a 383 stroker kit with stock heads (maby ported)
    • Cam
    • Computer Tune (i think i can get it tunned when i have it reprogramed for the v8)
    • Will have sanderson ceramic coated headers (needed for swap)
    • Ported TB (its like $150)
    • Electric Fan (needed for swap also)


    i want to stay away from NOS too

    i'm looking to spend anywhere from 3000-3500 on the whole swap. The conversion parts which is the headers, electric fan, motor mounts, and engine harness and tune is about 1100. That leaves about 2500-3000 for an engine and aftermarket parts. Also since i currently have the 4.3 vortec all my accesories are going to be used on the new engine and i don't need the wiring harness of it which saves some money.

    The problems i face is I have no experience building an engine though i probably could do it on my own i'm going to have my friend and his dad help me build it at there house because they do have experience in a couple engine rebuilds and swaps. So there will be engine stand, engine host, engine tools on hand.

    My big problem now is whether to get a block and build the 383 stroker out of the vortec or get a low milage vortec engine and put a cam, heads, upgraded valvetrain in it.

    Let me know what your guys opinions are i'm open to any critisism or suggestions.

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    Re: Questions about a 5.7 engine swap performance in s10!

    common i know you guys know about building the 5.7 up, someone help me out.

  3. #3
    Chevy truck owner The_Ogre25's Avatar
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    Re: Questions about a 5.7 engine swap performance in s10!

    it depends how far you want to go into your engine. Also how expereced your friend and his dad are. Just putting new rings and bearings in a motor is not a rebuild. for the 383 you will have to have the new crank checked and the block mains line bored. I dont know if you have priced a 383 kit to see if it fits in your budget. And when you order the kit tell them you have the vortec style motor so you get the right crank. As for the vortec intake I think you could go to a tpi or lt1 intake.

  4. #4
    s10er8
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    Re: Questions about a 5.7 engine swap performance in s10!

    I would be a little more flexible on the engine...maybe an older block from a reputable rebuilder and put your own heads on it, you could get new dart iron heads assembled with an intake and valve covers for $1500
    http://www.jegs.com/webapp/wcs/store...0187&langId=-1

    get a cam, pushrods and roller rockers for another $450-500

    thats a little over budget and you still need a distributor and carb....

    and you need headers for the swap and a radiator that can keep it cool, headers under the hood of an s10 make a lot of heat and are harder than usual to keep cool Be-cool makes a nice radiator just make sure you get the right one...it's the expensive one that you need and not the $300 one

    TBI is really easy to swap into an s10 with factory tbi

    how much do you know about the S10 v8 swap? I have a 350 in mine

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    Re: Questions about a 5.7 engine swap performance in s10!

    I know quite a bit about the swap and whats needed to perform it. At the current point i'm now thinking about doing a LS based 5.3 swap. It just seems the 5.7 is going to cost to much to get performance where i want. I can get a 5.3 engine for the same price or less then the 5.7 too and spend less to upgrade it.

    The 5.3 will be able to make around 300hp and 360 torque to wheels with just a cam, ls6 intake, and maby ls1 heads i'm guessing.

    What manual transmission do you think i should go with guys?

  6. #6
    s10er8
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    Re: Questions about a 5.7 engine swap performance in s10!

    richmond 6 speed

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    Re: Questions about a 5.7 engine swap performance in s10!

    What year S10 are you installing this engine into??

    peace
    Pauly
    97 GMC 2wd RCSB 5.7, s10 2700 footstall, Hooker 24621hkr LT's , 2.5" cats dual 4"pipes exit B4 pass. side tire, custom driveshaft 3.42 G80 FIPK MAF descreen GM/Mercruiser Marine intake manifold 29lb LS2(EV6) injectors Ed Wright PCM(best mod), LT4 KM 14.8@94mph 2.007 4000lbs 122mph

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    Re: Questions about a 5.7 engine swap performance in s10!

    Its gonna go in a 98 chevy s10 4.3l v6

  9. #9
    Registered User xpndbl3's Avatar
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    Re: Questions about a 5.7 engine swap performance in s10!

    i'd buy an LS1 and just put it in the truck and get 300RWHP from the factory. Throw in a cam too if you like and you're done. Find a wrecked 4th camaro 98+ up and swap over everything yourself. I put an LS1 into my 98 SS before I sold it and did a head/cam swap and put down 450HP to the rear wheels on a mustang dyno. Then blew out the rear end and tranny, but those aren't made for that kind of power either.

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    Re: Questions about a 5.7 engine swap performance in s10!

    Awesome, a Vortec 350 into a 1995 and newer S10 originally equipped with a Vortec V6 is goinfg to be a nice tidy install for sure.

    the V6 PCM can be used, you will need to add 4 extra wires for the 2 exra injectors, some O2 sensor wires may need to be swapped. the AC, VSS, EGR, idle, purge and many other sensors are interchangeable.
    teh MAFS from a 5.0,5.7 is slightly larger than a 4.3 I believe.

    teh 5.7 is originally a dual cat setup, with 2 percat and 2 postcat sensors. You will need to find a PCM pinout chart/diagram that shows you the pinouts from teh PCM. It tells you exactly what each of teh PCM pins does, the V6 differes SLIGHTLY from teh 350.

    in teh end, you will need to reflash teh V6 PCM with a Vortec 350 program.

    May I suggest a Tunercat OBD2 tuning programming system for you?? They are $379.00 with 1 dfinition file, extar definition files are $79.00. tuinercat has definition files as follows
    We have also added a few new Vehicle Definition Files. The following Vehicle Definition Files are now available:

    OBD2_07 1996 - 1997 Vortec Trucks (4.3L, 5.0L, 5.7L, 7.4L)
    OBD2_06 1998 - 2000 Vortec Trucks (4.3L, 5.0L, 5.7L, 7.4L)
    OBD2_02 1999 - 2000 LS1 Trucks (4.3L, 4.8L, 5.3L, 6.0L)
    OBD2_03 2001 - 2002 LS1 Trucks (4.3L, 4.8L, 5.3L, 6.0L)
    OBD2_04 2003 - 2005 LS1 Trucks (4.3L, 4.8L, 5.3L, 6.0L)
    OBD2_08 1996 - 1997 Camaro/Firebird/Corvette/Impala LT1
    OBD2_09 1997 - 1998 Camaro/Firebird/Corvette LS1
    OBD2_01 1999 - 2001 Camaro/Firebird/Corvette LS1
    OBD2_05 2002 - 2003 Camaro/Firebird/Corvette LS1
    OBD2_10 2004 - Corvette
    OBD2_12 2004 - GTO
    OBD2_13 2004 - 2005 Cadillac CTS-V

    The Definition File for the 2006 trucks should also be available soon.

    I currently have teh 1996-1997 Vortec truck file, it allows V6 and V8 smallblock AND bigblock tuning. It is the only full tuning siftware available for the 1996-2000 OBS trucks and SUV's.


    A Tremec T-56 from a 98-2002 F-body wont work with a Vortec 350, but a Borg warner T-56 from a 1993-1997 Fbody or a ZF 6 speed from an 89-1996 Corvette will also work. The ZF is stronger than the T56, but the T56 still has a 450 lb/ft torque rating.
    The Richmond 6 speed is EXTREMLEY expensive as it is only available new, it does have multiple shifter locations. It is available in many different ratios.

    the Vortec 350 intake manifold has a hm limit of 400 hp or 3300 at the rear wheels, due to the 19 lb/hr poppet injectors. You can use a Marine or Ramjet intake manifold to get around this though. My Marine intake source sells tehm for $750.00US which is very affordable for what you get, some guys are selling V6 conversion intakes for over $1700.00US.

    I am thinking that a stock vortec 350 with the stock injection will be lots for an s10, you will have a hard time getting it too hook. A 383 would be a waste in my opinion.

    You can get a 383 to make 330 rwhp with a LT4 Hotcam and ported Vortec L31 heads. It can be fueled with the stock L31 injection. Vortec Stroker is running this exact combo in his extended can fullsize and is running 14.0's.

    I have a bolt on Vortec 350 in my 1997 reg can shortbox and get 14.8's, I weigh around 4000 lbs.

    post back with any questions

    peace
    pauly
    97 GMC 2wd RCSB 5.7, s10 2700 footstall, Hooker 24621hkr LT's , 2.5" cats dual 4"pipes exit B4 pass. side tire, custom driveshaft 3.42 G80 FIPK MAF descreen GM/Mercruiser Marine intake manifold 29lb LS2(EV6) injectors Ed Wright PCM(best mod), LT4 KM 14.8@94mph 2.007 4000lbs 122mph

  11. #11
    Damn I feel old psychoshanesz71's Avatar
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    Re: Questions about a 5.7 engine swap performance in s10!

    Gee, wish I still had mine They are pretty fun to drive, a pain to work on.

    Heres my old Junkin Pumkin.





    3 motors and 6 rearends later I got tired of it.
    Last edited by psychoshanesz71; 12-16-2005 at 01:14 AM.

    Sig by 9chevy4



    The ladies call me "Coffee" cause I grind so fine!

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    Re: Questions about a 5.7 engine swap performance in s10!

    i would do an LS1 but they are in such demand that it is hard to get a good deal on them. The 5.3 was built at a 2:1 ration to the Ls1 i believe so there is a lot more of them around and less demand for them. Plus they have 295 Hp which is not bad considering its an LS based engine and you can eaisly get more Hp out of it.

    Gonna put a Ls6 intake, maby sotck ls1 heads, and a cam and i should to be good for around 300rwhp and 350 something rwtq.

  13. #13
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    Re: Questions about a 5.7 engine swap performance in s10!

    with teh LS1 or LM7(5.3) you will need to instal a newer style trans then. With a L31 you can use the existing PCM and trans, an L31 is way easier.
    But its your show,
    peace
    Pauly
    97 GMC 2wd RCSB 5.7, s10 2700 footstall, Hooker 24621hkr LT's , 2.5" cats dual 4"pipes exit B4 pass. side tire, custom driveshaft 3.42 G80 FIPK MAF descreen GM/Mercruiser Marine intake manifold 29lb LS2(EV6) injectors Ed Wright PCM(best mod), LT4 KM 14.8@94mph 2.007 4000lbs 122mph

  14. #14
    s10er8
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    Re: Questions about a 5.7 engine swap performance in s10!

    Quote Originally Posted by PSYCHOSHANEZ71
    Gee, wish I still had mine They are pretty fun to drive, a pain to work on.

    Heres my old Junkin Pumkin.





    3 motors and 6 rearends later I got tired of it.
    I recognize that one

 

 

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