602 compression

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  • mr.slidewayz
    Senior Member
    • Feb 2010
    • 473

    #1

    602 compression

    can you guys tell me what the compression is (psi) on sealed 602 crate engine & what heads they come with ? i want to know what it would take to duplicate one and what tech proceedures that it would take to keep a home built engine equal with a factory sealed 602 .= for those of us that would like to use the junk we have laying around to try and join with the lesser divisions (like a street stock or a b-mod) ..... ive got a half dozen good ol 350's out back , what would it take to get one of those up to par with g.m's version of the 602 crate unit ?
    Last edited by mr.slidewayz; 04-02-2011, 01:30 PM.
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  • mr.slidewayz
    Senior Member
    • Feb 2010
    • 473

    #2
    what ?? none of ya'll know what compression your 602 pushes ? or what the casting numbers are on the heads ?
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    • mr.slidewayz
      Senior Member
      • Feb 2010
      • 473

      #3
      im guessing it's just a basic stock 350 lower assembly (with a 10:1 set of piston) , a set of vortech heads & a mild cam (i need that part number as well) . am i right ? i just dont know what cc heads they use and what it makes for compression . surely some of you guys know what im trying to find out . hook a brother up . we dont have many around our area ..... but i want to try and get it to catch onn . i want to copy one . or make one of equal horsepower at a lesser cost (say ---- with 305 heads or something) . i dont have a dyno . i do have a compression tester . i just need the readings . thanks in advance
      Last edited by mr.slidewayz; 04-02-2011, 01:32 PM.
      BUMPERS ARE FOR BLOCKERS !

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      • Racer63
        Senior Member
        • May 2007
        • 285

        #4
        http://www.4m.net/showthread.php?200...ession-reading

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        • Racer63
          Senior Member
          • May 2007
          • 285

          #5
          A few part #'s have changed I think.

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          • swaybar
            Senior Member
            • Jun 2007
            • 140

            #6
            Ours pumped at 165 today, but as mentioned in the attached thread, it was after the lifters had bled down.

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            • mr.slidewayz
              Senior Member
              • Feb 2010
              • 473

              #7
              thanks guys .... that's exactly what i had been looking for . i appreciate it
              BUMPERS ARE FOR BLOCKERS !

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