Recent content by mderoy340

  1. mderoy340

    head gasket

    Those pistons should be above deck and trickflows are closed chamber. Measure the pistons comp height and add .040 for your headgasket thickness.
  2. mderoy340

    Flexplate and TC for a BluePrint 408 Magnum

    If your stroker rotating assembly is internal balance use a neutral balance flexplate,
  3. mderoy340

    I THINK I KILLED THE 340

    It runs 11.70s in my 3250 lb street/strip car. MP used to carry .060 composite to drop compression.
  4. mderoy340

    Leaf spring shackle angle

    put the car on the ground, fill fuel, spare tire etc. take a short drive to settle front and rear suspension. I would shim fwd if my car looked like that after a short test drive.
  5. mderoy340

    I THINK I KILLED THE 340

    my bad, my old trw flat tops are not. My pistons are .022-.025 above deck and I run a .060 thick composite gasket with closed chamber heads for many years.
  6. mderoy340

    I THINK I KILLED THE 340

    swapping 2&8 is a no go, the valve relief orientation of int and exh are not the same.
  7. mderoy340

    new 360 advise needed please.

    If the 904 you have has the low gear set in it the 2.76 or 2.94gear 26" tire works great for a cruiser. I've run fast ramp SFT cams with EDM lifters for years with great longevity. The XE262 hydraulic had 2 lobes and lifters start to go flat in 6 months which is why I won't run a hyd any more...
  8. mderoy340

    Manifold Vacuum Experiment

    Modify the dizzy housing to add an adjustable stop and run any Vac can you want. Any time the Vac can diaphragm fails you have a vacuum leak.
  9. mderoy340

    Am I Going To Be Happy With This Camshaft?

    I would run a SFT with EDM lifters. I've had great longevity and power with the Lunati Vodoo cams. You will also loose around .020-.025 lift at the valve with the SBM pushrod geometry from a cams listed lift.
  10. mderoy340

    More Summit discount codes.

    PM sent Thanks for sharing.
  11. mderoy340

    sick week 2024 pictures.

    And the hood is flat. Well thought out sleeper.
  12. mderoy340

    360 valve stem seals

    left - intake middle exhaust right exhaust with extended umbrella
  13. mderoy340

    sick week 2024 pictures.

    Thanks for posting all the great pics. Looks like a good time,
  14. mderoy340

    MP DISTRIBUTOR TIMING CURVE 340

    Agree with this approach as a starting point. The motor running on your run stand is under NO LOAD. Once in the car fine tuning can be tweeked under real world conditions. Under hood temperature and drivetrain load changes will dictate how much ignition advance the motor will tolerate without...
  15. mderoy340

    My 340

    Very close to my setup 11.90 on a good day. You need more gear to get a 340 to wind out. 4.56 28" tire worked the best for me. A 4.30 26" tire also works good. I ran 11.74 today with a 4.10 26" tire. I'm putting a 360 in my car shortly and put the 4.10 in for the new motor.
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