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5.7 vortec cam swap

This is a discussion on 5.7 vortec cam swap within the Performance forums, part of the General Discussion category; im cammin my truck soon,nothing crazy just a small cam......anyone knows if its hard?...

  1. #1
    Registered User Vortec 5.7's Avatar
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    5.7 vortec cam swap


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    im cammin my truck soon,nothing crazy just a small cam......anyone knows if its hard?

  2. #2
    Registered User Jon4x4's Avatar
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    Re: 5.7 vortec cam swap

    gotta rip apart the whole front end of the motor.
    '00 Chevy Silverado Z71, 233k miles
    '97 Ford F250 ECLB, 7.3/ZF5. Tow Pig
    '98 Chevy K1500 ECSB, SAS - Sold
    '94 GMC C1500 RCLB, DD - Sold
    Some guys think that if you got a cooler car that your better then other guys; Those guys are right. - Adam Farrara

  3. #3
    Registered User skylark's Avatar
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    Re: 5.7 vortec cam swap

    Not trying to be a jerk. If your asking this question then you have a ton a research to do. This sounds like it may be beyond your current skill level. Use the search button here. You should also buy a manual to have on hane for when you do the job.
    All of that aside, these are the things I can think of off the top of my head that need to be removed to do the job.
    Air filter assembly
    All of the wiring on top of the engine
    Serpentine Belt
    Water Pump
    Fan shroud
    Radiator
    A/C Condenser
    Grill
    A/C Compressor
    P/S, A/C Bracket (you can leave the P/S pump on)
    Alternator
    Fuel lines
    Distributor
    Throttle cables
    Exhaust pipe
    The crappy heater hose quick connect (replace with the dorman unit)
    Intake manifold
    Valve covers
    Rocker arms
    Push rods
    Retainer plate
    lifter guides
    Lifters
    Crank Pulley
    Balancer
    Two oil pan bolts
    Timing cover
    Reluctor
    Timing Chain
    Cam

    I know I'm missing something in there. You should replace the timing chain while you have it apart. Also keep in mind that it will need to be tuned and the A/C needs to be serviced properly (vacuumed) rather than just a simple recharge because you had the system open. Oh, the gaskets to use on the intake are the MS9800T from Fel Pro. You might want to consider the mpfi conversion as well (Delphi FJ10566).
    89 GMC Stepside 2WD 4/6 drop, working on the stroker again!!!
    Y2K Chevy K3500 CCLB Dually 6.5, the Black Pearl.

  4. #4
    Registered User Vortec 5.7's Avatar
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    Re: 5.7 vortec cam swap

    Quote Originally Posted by skylark View Post
    Not trying to be a jerk. If your asking this question then you have a ton a research to do. This sounds like it may be beyond your current skill level. Use the search button here. You should also buy a manual to have on hane for when you do the job.
    All of that aside, these are the things I can think of off the top of my head that need to be removed to do the job.
    Air filter assembly
    All of the wiring on top of the engine
    Serpentine Belt
    Water Pump
    Fan shroud
    Radiator
    A/C Condenser
    Grill
    A/C Compressor
    P/S, A/C Bracket (you can leave the P/S pump on)
    Alternator
    Fuel lines
    Distributor
    Throttle cables
    Exhaust pipe
    The crappy heater hose quick connect (replace with the dorman unit)
    Intake manifold
    Valve covers
    Rocker arms
    Push rods
    Retainer plate
    lifter guides
    Lifters
    Crank Pulley
    Balancer
    Two oil pan bolts
    Timing cover
    Reluctor
    Timing Chain
    Cam

    I know I'm missing something in there. You should replace the timing chain while you have it apart. Also keep in mind that it will need to be tuned and the A/C needs to be serviced properly (vacuumed) rather than just a simple recharge because you had the system open. Oh, the gaskets to use on the intake are the MS9800T from Fel Pro. You might want to consider the mpfi conversion as well (Delphi FJ10566).
    im not sure wat my skill level is but in done all the mods so far my self
    MODS
    ported throttlebody
    pulleys
    1.6 rocker arms
    mid tube headers
    swapped rear end for a posi
    e-fans
    shackles and hangers
    oh i didnt install my drop springs and vette servo....but then again i didnt have the tools back then
    i bought the haynes book when i was installing the rockerarms
    wat is mpfi conversion?

  5. #5
    Registered User loudandproud's Avatar
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    Re: 5.7 vortec cam swap

    Its not all that hard, just time consuming and its more expensive than original anticipated.

    If your gonna cam it you mine as well do it for real...

    Yank the heads, have em milled .035", Install comp 26918 springs with 787 retainers and +.050" Valve locks, pin the rocker studs and throw on
    decent roller rockers.
    Reinstall with .015" steel shim, puts you at around 9.8:1 compression...

    Throw in a good roller... CCA-08-300-8 would be good for a truck with a stock stall...


    Honestly a cam swap isnt worth it unless you go big. Headers, Stall, plenty of compression... yada yada

    10 horse power, schmaybe 15 if you play it conservative and just do the cam swap vs. 100+ for the works.
    Last edited by loudandproud; 08-08-2011 at 12:11 PM.
    BUILT NOT BOUGHT...

  6. #6
    Registered User Vortec 5.7's Avatar
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    Re: 5.7 vortec cam swap

    Quote Originally Posted by loudandproud View Post
    Its not all that hard, just time consuming and its more expensive than original anticipated.

    If your gonna cam it you mine as well do it for real...

    Yank the heads, have em milled .035", Install comp 26918 springs with 787 retainers and +.050" Valve locks, pin the rocker studs and throw on
    decent roller rockers.
    Reinstall with .015" steel shim, puts you at around 9.8:1 compression...

    Throw in a good roller... CCA-08-300-8 would be good for a truck with a stock stall...


    Honestly a cam swap isnt worth it unless you go big. Headers, Stall, plenty of compression... yada yada

    10 horse power, schmaybe 15 if you play it conservative and just do the cam swap vs. 100+ for the works.
    i bought a cam and another set of vortec heads with bigger springs,locks and retainers for 150.00 used from a good friend
    Last edited by Vortec 5.7; 08-08-2011 at 01:49 PM.

  7. #7
    Registered User loudandproud's Avatar
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    Re: 5.7 vortec cam swap

    Quote Originally Posted by Vortec 5.7 View Post
    i bought a cam and another set of vortec heads with bigger springs,locks and retainers for 150.00 used from a good friend
    wow! are you serious? you stole that ****! Good JOB! hhaah...

    What cam and valve springs did you get?

    PS. Does you friend have any other items he wants to sell for those prices haha
    Last edited by loudandproud; 08-08-2011 at 06:15 PM.
    BUILT NOT BOUGHT...

  8. #8
    Registered User Vortec 5.7's Avatar
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    Re: 5.7 vortec cam swap

    im not sure on the springs,he said that it has a 550 lift limit
    cam spec are .480/.480.....210/220 dur.....264/274 avd....lobe sep 112.....
    lol thats all he had forsale.....he gave me a cracked rollpan......but ima fix that first before i install it

  9. #9
    Registered User loudandproud's Avatar
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    Re: 5.7 vortec cam swap

    oh ok youre good there. .480 should be pretty safe. More than likely if he went through the heads he addressed the retainer to valve seal clearance issues.

    i suggest if your swapping heads you spend the $100 bucks and get em shaved at least .030 and take out some head gasket.

    run the number and shoot for around 9.8 or so...

    would hurt to find the abdc of that cam and check your dynamic compression ratio. shoot for about 8.5:1 for 93 octane or around 7.9:1 for 87 octane.
    BUILT NOT BOUGHT...

  10. #10
    Registered User para driver's Avatar
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    Re: 5.7 vortec cam swap

    I think that's the same cam I installed and it's modestly better than the standard vortec cam.. a little better bottom end, but that's about it.
    You may not have to rechip.
    '95 Tahoe LT 4x4, TBI with Vortec crate motor.
    God created all men, and Sam Colt made them equal.

  11. #11
    Registered User Vortec 5.7's Avatar
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    Re: 5.7 vortec cam swap

    Quote Originally Posted by para driver View Post
    I think that's the same cam I installed and it's modestly better than the standard vortec cam.. a little better bottom end, but that's about it.
    You may not have to rechip.
    thats it? no topend gain?
    i need more than A LITTLE gain....its not worth my time.....ill just sell it then

  12. #12
    Proud chevy owner
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    Re: 5.7 vortec cam swap

    It should improve top end too, it's more lift and longer duration than stock cam specs
    awesome sig(s) xZoomerZx!
    1996 silvy, 6"bds, sf14bolt, eaton elocker, precision 4.56s, 37" claws;
    383ci vortec, compcams 218/224 .495"/.502" 110*;
    longtubes, magnaflow exhaust, 0411
    2006 Infiniti G35 - dropped on coils, bottle-fed

  13. #13
    Registered User Vortec 5.7's Avatar
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    Re: 5.7 vortec cam swap

    ok,well ill start the swap tomorrow then

  14. #14
    Registered User Jon4x4's Avatar
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    Re: 5.7 vortec cam swap

    if you wanna sell it, ill take it.
    '00 Chevy Silverado Z71, 233k miles
    '97 Ford F250 ECLB, 7.3/ZF5. Tow Pig
    '98 Chevy K1500 ECSB, SAS - Sold
    '94 GMC C1500 RCLB, DD - Sold
    Some guys think that if you got a cooler car that your better then other guys; Those guys are right. - Adam Farrara

  15. #15
    "Just Harry" TheJavelin's Avatar
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    Re: 5.7 vortec cam swap

    Quote Originally Posted by Vortec 5.7 View Post
    ok,well ill start the swap tomorrow then
    Good luck
    I Liek NBS

  16. #16
    Bowties and Guitars
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    Re: 5.7 vortec cam swap

    You didn't get that cam from SSean did you? i know he still had that built 5.7 when he took it out for the 6.0 swap

    6.0 Killer
    lm7 w/ TBSS topend, milled/ported 243's, 92mm tb. yank 3600 stall yukon 4.10:1 gear, assassin tractionbars, eaton locker, hoosier 27" slicks, tr 220/220 dyno tuned by flaco-- 12.92 @ 104 mph 1.67 60ft.- SOLD
    99 T/A WS6 Built Forged Iron block 370 on Spray Tuned by me

  17. #17
    Registered User Vortec 5.7's Avatar
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    Re: 5.7 vortec cam swap

    Quote Originally Posted by GreenVortec View Post
    You didn't get that cam from SSean did you? i know he still had that built 5.7 when he took it out for the 6.0 swap
    no he sold motor with everything......and the cam he had was 224/236 and 500/510 lift......some thing like that

  18. #18
    Registered User Vortec 5.7's Avatar
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    Re: 5.7 vortec cam swap

    Quote Originally Posted by TheJavelin View Post
    Good luck
    thanx

  19. #19
    Bowties and Guitars
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    Re: 5.7 vortec cam swap

    Quote Originally Posted by Vortec 5.7 View Post
    no he sold motor with everything......and the cam he had was 224/236 and 500/510 lift......some thing like that
    ahh.. if i didnt do my swap i would of bought that bad boy from him..

    are you the blue extended cab?

    6.0 Killer
    lm7 w/ TBSS topend, milled/ported 243's, 92mm tb. yank 3600 stall yukon 4.10:1 gear, assassin tractionbars, eaton locker, hoosier 27" slicks, tr 220/220 dyno tuned by flaco-- 12.92 @ 104 mph 1.67 60ft.- SOLD
    99 T/A WS6 Built Forged Iron block 370 on Spray Tuned by me

  20. #20
    Registered User Vortec 5.7's Avatar
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    Re: 5.7 vortec cam swap

    Quote Originally Posted by GreenVortec View Post
    ahh.. if i didnt do my swap i would of bought that bad boy from him..

    are you the blue extended cab?
    he ran 13's with that motor.......I have a green truck with tan designs..........

 

 
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