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  1. 64nailhead

    Rear end alignment issue

    I have alot of experience with removing and reinstalling rears from the G-bodies we have. I have found it easiest to put the frame on jack stands near the lower front arm bolt, support the diff with a jack, remove the lower shock mount, drop the rear enough to remove the springs. At this point...
  2. 64nailhead

    Gear ratio help

    That gear change will feel like you added 70-100hp. You'll be amazed. Let us know the before and after butt dyno results.
  3. 64nailhead

    radiator options for LS swap?

    For some peace of mind, I ran a stock MCSS radiator for two years with LS truck accessories. Plenty of street miles and 1/4 mile runs at 800-900whp. It worked just fine. But over 900 seemed to start getting hotter than I cared for on the return road. For a NA motor, there is no need for much of...
  5. 64nailhead

    1983 Oldsmobile Cutlass Supreme Sedan LS Turbo Build

    How do you like the fender exit? Glad to see you are running it!!!
  6. 64nailhead

    Save her

    I have an '80 Cutlass VIN tag and title - grab it for nothing and ship it to me. I can't believe it will cost that much to ship..................................to Upstate NY (shrug)
  7. 64nailhead

    Gear ratio help

    I haven't seen what size tire you're using. If short, stockish size tires, then the 3.08 is what you should use for what you're describing ^^^^. If money is tight, leave the open diff - one wheel peel isn't the end of the world.
  9. 64nailhead

    radiator options for LS swap?

    There are almost an infinite amount of options. Your choice depends on how you want it to look aesthetically and/or your budget. The budget option is to use truck accessories from the junkyard/donor truck motor and a stock radiator that IS either new or in good condition. That allows you to use...
  10. 64nailhead

    BUILD THREAD 86 GP 2+2~Blown 6.0

    Take the smaller pulley with you - trust me. Your description of the fueling makes sense for a larger cam. Just keep it above 1900-2000 when cruising (unless you’re picking up grandma from church to head to the grocery store)
  11. 64nailhead

    ‘25 season

    2nd hit of the season sketchy prep. It went downhill from there as the track went downhill.
  13. 64nailhead

    ‘25 season

    Family 1st is good rule, and overbuilding is as well.
  14. 64nailhead

    ‘25 season

    New season - new pics and video’s. Race and car season is upon us here in the N/E - winter upgrades are over (hopefully) or at least nearing completion. Post some updates including pics and vids if you have them.
  15. 64nailhead

    4x4 4L80E to 2wd

    Need a tail shaft housing and different output shaft. And the plug with orifice as mentioned above
  17. 64nailhead

    BUILD THREAD 84 Regal back half/caged/mini tubbed lq4/4l80e build

    The difference between a 3.42 and 3.55 will barely be noticeable. I wouldn’t consider finding a rear that would be happy with a 26 and 29” tire mainly because there isn’t one. Let’s back up, what cam are you using? Headers or stock manifolds? Stock compression between 9:1-10:1? I read back...
  18. 64nailhead

    What did you do to your g-body today 2025 Edition!

  19. 64nailhead

    BUILD THREAD 84 Regal back half/caged/mini tubbed lq4/4l80e build

    3.90 with a 26” tire will suck. 3.73 at a minimum. 3.55/3.42 would work fine. 3.73 with a 28” tire turns 2700 rpm’s at 65-70.’
  21. 64nailhead

    94 Blazer 2dr 5.3 Twin Turbo (Tyclone)

    Weld a v-band onto the manifolds - it will offer much more servicibility in the event you need to pull a manifold. You’ll thank me after you’ve bent a rod or two, or knocked out a head gasket
  22. 64nailhead

    Driveshaft measurement

    What 565bbchevy posted is spot on. The only issue that it doesn’t consider is if you have an extremely large amount of suspension travel. But for most of us that aren’t on air ride that allows for 3-6” of suspension travel, his link will work perfectly. At no point in the suspension travel...
  23. 64nailhead

    swapping out 700R4 for 4L80e on LS 5.3 Gbody

    Holy moly - a lot of questions lol! Use the stock 80e output yoke, then use your current driveshaft (if in good condition) and combination UJ’s as required. The driveshaft length should be measured and modified for your car. Yes, cut off the ‘ears’. Crossmember - use whatever you have and cut...
  25. 64nailhead

    200r4 torque converter bolt size.

    My stick converter was metric. But yours could be either depending on the TC manufacturer.
  26. 64nailhead

    What did you do to your g-body today 2025 Edition!

    Fabricating seat mounts for a couple of aftermarket seats. Gives me something to do to use up my evening time

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