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  1. JBurch

    Valve to piston clearance

    This probably isn't the answer you want to hear, pull the engine down and cut a deeper eye brow for exhaust valve clearance. While you are at it, double check the intake.
  2. JBurch

    4 bolt mains for LA

    I don't remember if I read it in my copy of a Mopar Performance engine book, or "How ti Hot Rod Small Block Mopars", that the two bolt bottom end of a small block mopar could survive almost 2hp per cube...........food for thought
  3. JBurch

    Need advice racing a 380 horse crate engine

    I've been looking this over and it's my belief that you've got serious tuning issues; I put a Teener into the 13's at 98 mph; it's in the 13 sec combo list; my guess is that your secondaries are not opening up. Find a DP, even if it is smaller than your 3310, a 600, or 650 will cause less of a...
  4. JBurch

    When ET and MPH Are Not a Match?

    Some calculators post results based on "ideals", ideally tuned engine, ideally tuned suspension ET is a function of how well the chassis performs, and that shows up in your 60 foot time, the lower the time, the better your chassis works, shocks, springs, converter comes into play here also if...
  5. JBurch

    Crank

    I'll be brutally honest, never heard of re-hardening the crank after cutting; what is the process they propose to use to re-harden the crank? I can see the possibility of the crank becoming brittle after such a process. When any of the factory crank were hardened at the factory, they were only...
  6. JBurch

    Crank

    Something to think about.............they were cutting down 440 cranks to make 451's long before they started to make specific cranks for the build........I never heard of the cut down cranks being unreliable....actually you will pick up a slight improvement due to the ground fillet radius on...
  7. JBurch

    Valve Float

    When the pistons and the valves try to occupy the same space at the same time
  8. JBurch

    Pistons

    Try searching for a set of: P3690831, 400 ci engine, 11.5 to 1 compression
  9. JBurch

    Pistons

    sorry
  10. JBurch

    Pistons

    Diamond Racing Forged, Flat, 4.375 in. Bore
  11. JBurch

    Calvert set up pictures

    You are absolutely correct on this.........however people don't want to sit down and read printed materiel in their hand, they would much rather sit down at their computer and log into a site like this with the belief that this is some how "better". My engine manual and chassis manual are dog...
  12. JBurch

    Calvert set up pictures

    Youtube: JimBurchrun1.........suspension working, 1.4958 60ft JimBurchrun2.........suspension working, 1.4992 60ft JIMDS...................suspension not working, 1.580 60ft
  13. JBurch

    Calvert set up pictures

    2 things...........I wasn't talking about the front of the car.......I was commenting about the bunny hop of the *** end........if you have the torsion bars cranked all the way up.......WHY???? No wonder your weight transfer is so poor, you got no movement left!!! DUH!! Un-wind them to the...
  14. JBurch

    Calvert set up pictures

    the shocks are too loose, too short What I beleave is happening is that the rear is coming up too fast, the body comes to the end of travel of the shock and that unloads the rear and it starts hopping like a rabbit. Slow body rise down just a little; remember simple Physics "for every...
  15. JBurch

    Cheap alternative to pricey flat tappet oil in street cars...

    Shell Rotella 15-40, and a blue bottle of STP........blue bottle is almost twice the zinc of the red bottle
  16. JBurch

    340 Direct Connection cylinder heads

    You seem to be referring to w-2's; it would take some work to get them down on a 273, it can be done; big question of cost /benefit. There was/is a version out there that had a 55cc chamber, after notching the bores for valve clearance, you might end up in the 9 to 9.5 range starting with a...
  17. JBurch

    compression help??318 .....

    What is the volume of the valve reliefs, and is it truely a zero deck. Give me the numbers and I crunch 'em, and give you a sugesstion on gasket. Always check piston to valve clearance when you step up in cam, nothing ruins your day like dingin' a piston with a valve.
  18. JBurch

    how to get 340 into 12,s

    Are you running open headers or do you have pipes/mufflers? If open headers, add some collector extensions on, it will help build some torque in the basement rpm. The other is pump shot, try changing the cams for the pumps to extend the duration of the shot. Converter and gear will help...
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