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  1. Replies
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    Has the flywheel been changed in this car? If...

    Has the flywheel been changed in this car? If so, you may need to shim it the right amount so it is not putting excessive stress on the starter body.

    My stock starter broke in that area as well,...
  2. You have a cast crank, so could be either. What...

    You have a cast crank, so could be either. What do the tops of the pistons look like? I thought the LT4 pistons were different, but I could be wrong. To tell you the truth, your crank, rods, and...
  3. Yep, heard the same thing here. That's why so...

    Yep, heard the same thing here. That's why so many of us do the conversion by basically just putting on LT4 heads and intake, then GMPP Hot Cam or whatever you fancy. There are the other "smaller"...
  4. What is the best way to "chain up" the fully...

    What is the best way to "chain up" the fully installed engine to a hoist; to what do you secure the chain to or around?

    To my knowledge my stock "k member" is the huge thing below the pan that ...
  5. What's the easiest way to drop just the pan? / solve pan tapped by crank/conn rod!

    Ok, engine is running great now (383 LT4), the rockers are making that nice "sowing machine" sound... except there is a metalic tapping that I traced down to the bottom of the stock oil pan. I can...
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    Yep, my housing totally split into 2! Jegs...

    Yep, my housing totally split into 2!

    Jegs 555-10001 or Advanced Auto 66268 are supposed to be good.
  7. chevymec - by pull the opti and check it and the...

    chevymec - by pull the opti and check it and the experience you mentioned you had... Did you mean that somehow you actually got the cam post in the wrong "keyway"? Did it work fine after you slipped...
  8. Yeah, major warning on the coolant. Coolant goes...

    Yeah, major warning on the coolant. Coolant goes bad directly in proportion with time, whether you are running the car or not. I think 3 years max between coolant changes.
  9. Replies
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    I'd like to know as well.... esp. if anyone knows...

    I'd like to know as well.... esp. if anyone knows for a 383.
  10. Forgot to mention in case it matters: 1995 Z28...

    Forgot to mention in case it matters:
    1995 Z28
    Vented Optispark
    LT4 Knock Module installed

    I want to know if I am missing or overlooking anything troubleshooting-wise... especially hoping to...
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    I would try fully replacing the wire and...

    I would try fully replacing the wire and connectors at both ends. Make sure to use a large gauge braided wire. Mine had a broken connector that was 3/4 sheared off and corroded wire.
  12. Rebuilt 383 LT4 engine won't start, timing sounds really late...argh!

    Ok, so we get back my 2nd time rebuilt 383 LT4, put it in the car, and hook everything up except the radiator and y-pipe. I plugged in the O2 sensors and let them dangle, just in case they have to...
  13. Thanks everyone for the information... especially...

    Thanks everyone for the information... especially Fastbird and MoeHorsePower!

    I ordered a custom grind from LE. Very great guy to work with. If I had a race setup, I would have went with AI...
  14. bump

    bump
  15. Replies
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    Thanks for the info, I kept wondering why this...

    Thanks for the info, I kept wondering why this was so popular!
  16. WTB: 2 CompCams ProMagnum Roller Rockers 1.6 Ratio 3/8" stud PN is 1318-1 or 1318-16

    I need to buy 2 very good condition CompCams ProMagnum Roller Rockers 1.6 Ratio 3/8" stud

    PN is 1318-1 or 1318-16 for a set of them

    They are discontinued and CompCams has no stock left!!!
    ...
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    Interested.... But, what's the gain of mounting...

    Interested.... But, what's the gain of mounting the alternator down there?
  18. Replies
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    2 CompCams ProMag RR's 1.6 Ratio 3/8" Stud PN 1318-1

    Yes, I am thread-jacking an old thread because I am desperately in need of 2 CompCams ProMag RR's 1.6 Ratio 3/8" Stud PN 1318-1 (or 1318-16 for the whole set) and I don't meet the 50 post minimum for...
  19. Thanks everyone... It's good to have some...

    Thanks everyone... It's good to have some options!
  20. Thanks, I found them. What about a 58mm...

    Thanks, I found them.

    What about a 58mm Throttle Body Gasket?
  21. Gaskets for Ported LT4 Intake and Ported LT4 Heads?

    Hopefully this is an easy one...

    I have a ported LT4 intake and heads that I'm about ready to put back on. The prior gaskets were not the right size for the ports (lined up, but not big enough). ...
  22. Thanks for the info. I just bought a set of...

    Thanks for the info.

    I just bought a set of 12" O2 sensor extensions from you (was starting to melt the connector on the headers). Thanks!
  23. Thanks for the info. Will do!

    Thanks for the info. Will do!
  24. Need 383 LT4 / MT Cam Final Recommendations - Good power band & Hwy Cruise

    383 P+P LT4
    Details:
    Approx. 11:1 Comp. Ratio, may be as low as 10.5:1 or as high as 11.5:1
    ASM Short Tube Ceramic-coated Headers
    3" Collector, 4" Exhaust, !Cat
    T-56 with McLeod Dual Plate...
  25. Wow, thanks for the awesome post! A few sets...

    Wow, thanks for the awesome post!

    A few sets of questions still:

    What should my max safe RPM be set to in the ECU (via LT1edit) and with the MSD Ignition pill?

    Why 7/16" studs, just to be...
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