"Barn Find" 1971 Z28 I inherited, looking for info.

Discussion in '1970 - 1973 Specific' started by Squeaky192, Aug 19, 2014.

  1. Squeaky192

    Squeaky192 Veteran Member

    159
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    Aug 19, 2014
    Fort Worth, TX
    This was mentioned earlier in this thread:

    Like I said, the car has been resprayed, fairly poorly I'll add. They may have removed the badge and never put it back on.
     
  2. Rich Schmidt

    Rich Schmidt Veteran Member

    4,097
    13
    Mar 27, 2010
    Denville NJ
    Everyone goes crazy over the whole LS deal. They are great,but you would be surprised at how much untapped potential sits in a regular small block. Have it rebuilt and blueprinted. Have the heads done with a 3 angle valve job and back cut,and even with the stock cam,intake,carb and exhaust manifolds you can make 425 HP and still be totally daily drivable. Have a good Carb guy do the Carb and do an electronic conversion to the stock distributor,and you can give the LS swap guys fits. If when it is done you still insist on efi,then buy an efi kit to bolt onto the stock engine.

    That's a nice find.
     
  3. Squeaky192

    Squeaky192 Veteran Member

    159
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    Aug 19, 2014
    Fort Worth, TX
    My 177k mile Z28 went 12.1 @ 111 with a 3600 stall, bolt ons, and some suspension. It gets 23 mpg on the highway and has never had a hiccup since I bought it with 128k on it in '07.

    I have a cam, timing set, and LS6 heads sitting ready to go on a 5.3 or something and do a simple LS build. I intended that stuff to go onto my '99 but now I'm considering repurposing it.

    I know Gen 1 stuff has tons of potential, but I'm 25 years old. I know LS stuff really well and I haven't played with Gen 1 stuff much.

    Like I said though, the only way I will LS swap it is if I can completely reverse it. I know from the wiring aspect I'll have no problems, so it will come down to mounts and trans crossmember, etc.
     
  4. twozs

    twozs Veteran Member

    8,422
    78
    Aug 5, 1999
    hopewell jct ny
    What kind of " bolt ons " got you into really low 12s on a LS Z28 ?? I see its converter .
     
  5. twozs

    twozs Veteran Member

    8,422
    78
    Aug 5, 1999
    hopewell jct ny
    ask me how i know about the Z28 LS1 [​IMG]
     
  6. Squeaky192

    Squeaky192 Veteran Member

    159
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    Aug 19, 2014
    Fort Worth, TX
    Longtubes, catless y-pipe, Hooker Aerochamber muffler, Whisper lid, custom ram air that keeps IAT's right at ambient, LS6 Intake, DLR tune, RevMax 3600 lock-up converter, tubular torque arm, tubular LCA's, tubular panhard bar.

    Honestly, a converter alone will make any auto 98-02 car run in the 12's.

    Multiple guys have run in the 11's with bolt on/converter cars. My converter is a bit too big for the stock cam, but I was going to put my 222/224 .566/.568 in it, but that might be purposed for the 2nd gen now.
     
  7. Squeaky192

    Squeaky192 Veteran Member

    159
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    Aug 19, 2014
    Fort Worth, TX
    I'll know a lot more what my intentions will be with the car once it's down here, but trust me it isn't getting the pro-touring treatment.
     
  8. zfool

    zfool Veteran Member

    485
    3
    May 19, 2014
    Rochester, MN
    Thank god your not going to LS a car like that, if it was a plain jane I can see it (providing its a true Z) but theres just not many like it left. We tried to kill the last of them in the 80's but they all would die lol. Sweet ride.
     
  9. twozs

    twozs Veteran Member

    8,422
    78
    Aug 5, 1999
    hopewell jct ny
    the long tubes is the biggest gain and then the converter . totally stock ( RSAs ) i ran a 13.8 @ 102 (2002 or 3 ) . i added a slp flow pak ( SLPs air intake package ) and loudmouth 1 and dropped to 13.2 @ 106 ( englishtown ) in 05 . My 01 has the LS6 intake from the factory .that as far as i went . . you got a lot of bolt ons but 12.1 at only 111 .. i was at 106 at 13.2 . i ran my stock 2.73 rear . was there rear gear work done ?
     
    Last edited: Apr 3, 2015
  10. Squeaky192

    Squeaky192 Veteran Member

    159
    0
    Aug 19, 2014
    Fort Worth, TX
    My car was originally a 2.73 rear. It went 13.6 @ 104 with just a Flowmaster when I bought it.

    I put a 3.42 rear in it out of an LT1 car I paid $150 for.
     

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