1997-1999 vortec 350 with a 520-540 lift

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  • Опубліковано 23 гру 2024

КОМЕНТАРІ • 37

  • @shootermcgavin2819
    @shootermcgavin2819 Рік тому +4

    Its not coil bind, its valve seal interference. Thats why you machine the valve guide bosses down on vortec heads. Glad you made it work. Proof in the pudding

    • @feraladdicts
      @feraladdicts Місяць тому

      Exactly… the valve seal is where the problem is.

  • @born2wrench
    @born2wrench Рік тому +1

    96 -2002 was the span of the vortec 96&97 retained the mechanical fuel pump mount and shaft opening .

  • @ronaldbertin9455
    @ronaldbertin9455 Рік тому +1

    Plan on building a 97 vortex 383 stroker in the next couple of months , first thing I.ll do is check my heads for cracks then order the stroker kit

  • @msh6865
    @msh6865 Рік тому +1

    Appreciate the video but, there is a lot of info missing. Did you use offset keepers? Grind the bottom of the retainers? Different seals?
    Stock dimensions won't all for more than maybe .480 lift. So, some things have to change.

    • @clarksgarageofbadhabits6803
      @clarksgarageofbadhabits6803 11 місяців тому +2

      You use offset keepers. He’d need .050s to run this much lift. I’m going to be using .030 offset keepers since I’ve only got a 525 lift cam.

    • @SuperDave227D
      @SuperDave227D 5 місяців тому

      ⁠the only +.030 keepers I could find (Competition Products), measured out at +.045, NOT + .030! So I had issues with my roller rockers hitting g the keepers still on the intakes…. I’m not able to find anyone that has the + .030 keepers that ACTUALLY are +.030, right now…. Let me know if you find some, and what they measure out to on stock valves. Thanks.

  • @agetech30
    @agetech30 Рік тому +3

    How do you know that the retainer is not hitting the top of the valve seal?

    • @rockfordhx2768
      @rockfordhx2768 Рік тому

      Right tell us that

    • @silentbobfan32
      @silentbobfan32 Рік тому +1

      you run a very thin spring from a hardware store or no spring and use your hand to hold the valve up and tight against the valvetrain, and rotate the motor by hand so you can visually see it

    • @jacobnorth8642
      @jacobnorth8642 5 місяців тому +1

      You measure, cut pieces of coat hanger to go/no go lengths measuring with calipers and check with out spring. Piss-cutter did a video showing it

  • @kiesha104
    @kiesha104 10 місяців тому

    How long are the pushrods you used

  • @shanemcclaran3012
    @shanemcclaran3012 Рік тому

    Cool. Now I know how big of cam I can go. With the stock spider and dogbone assembly hydraulic roller cam. I upgraded to aftermarket aluminum heads.

    • @jacobnorth8642
      @jacobnorth8642 5 місяців тому

      Whatever your heads are setup for and allow...

  • @juliodiaz8280
    @juliodiaz8280 2 роки тому +3

    What pushrods are you using and did you have to open the hole for the pushrods to avoid any contact?

    • @jacobnorth8642
      @jacobnorth8642 5 місяців тому +1

      I drilled my to 1/2" to be safe, summit 8802 with .525/520 and 1.5 rockers. Ls style beehives, comp retainers and +.050 keepers, fel pro stem seals also

    • @jacobnorth8642
      @jacobnorth8642 5 місяців тому +1

      Stock vortec pushrods

  • @waynebartlett8868
    @waynebartlett8868 Рік тому +1

    Is it the stock Vortec install height in the springs

    • @jacobnorth8642
      @jacobnorth8642 5 місяців тому +1

      Vortec stock 1.7 more like 1.75, ls beehive 1.8, use comp retainer and +.050 retainers. Had to use dremel with lots of sandpaper rolls to get ls style springs to fit properly (basically almost drop on and pull off with little to no force)

    • @jacobnorth8642
      @jacobnorth8642 5 місяців тому +1

      Inside bosses of spring pockets too tight on my 906

  • @bigdon2241
    @bigdon2241 Рік тому

    thank you im building a 1997 vortec

  • @nickolausvassallo744
    @nickolausvassallo744 2 роки тому +2

    What pushrods are you using and is it a flat tapper or roller? If so which ones?

    • @rockfordhx2768
      @rockfordhx2768 Рік тому

      It’s a roller if it’s a 96/02 vortec all day flat tappit stop being used in 95

    • @richardclary6267
      @richardclary6267 Рік тому

      Could be either I have a Edelbrock Performer Rpm 350 crate engine it's built off a ZZ4 Roller Block L31 anyhow they put a Flat Tappet cam in it and I went back with a Hydraulic Roller but he has a Spider (lifter hold down) so it's Roller

  • @ralphcline1425
    @ralphcline1425 11 місяців тому

    WHAT PUSHRODS # ???

  • @ernestgutierrez4474
    @ernestgutierrez4474 2 роки тому

    what pushrods and cam are you running please

  • @jackperry9369
    @jackperry9369 2 роки тому +1

    How much for the projected horsepower ?

  • @pacman3908
    @pacman3908 Рік тому

    You probably used a 50 thou longer valves to make that work i bet?

  • @erictate9891
    @erictate9891 Рік тому

    Are the hydraulic lifters collapsing when you turn it over?

    • @dickbrugh5562
      @dickbrugh5562 Рік тому +1

      Exactly my thought, if so then it’s an inaccurate reading. Checker springs work well.

  • @timbieringer5253
    @timbieringer5253 3 роки тому

    What cam are u running

  • @calebchapdelaine6050
    @calebchapdelaine6050 3 роки тому +1

    What push rods are you running?

  • @anthonysantisi4218
    @anthonysantisi4218 2 роки тому

    Never get .600 out of those heads

    • @silentbobfan32
      @silentbobfan32 Рік тому +2

      longer valves, cut valve pockets, dished retainers, clearanced valve guides. you can get .600 if you want to, i have seen a .725 grind in person that ran. the issue is, vortech heads dont like that much lift and you start losing power fast, specific hieght depends on your casting and port work quality but somewhere between .475-.575 its gonna start losing power fast