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  1. TomOstrowski

    valve to piston clearance in hi-performance engine

    Valve float doesn't necessarilly result in piston to valve contact. Actually, it rarely does. Valve float is simply lift(and everything it encompasses- ramp design, etc.) outrunning, if you will, spring tension and most production engines will eventually experience it at one time or another...
  2. TomOstrowski

    Nikasil Coating Properties

    I'm afraid I don't see anything at Electrosil's website regarding information the thread-starter is/was interested in- thermal conductivity, coefficient of thermal expansion, etc. of (generic?)Nikasil coatings/linings. Personally, I find what information is listed at that particular company's...
  3. TomOstrowski

    FSMI numbers of brake shoe

    You mean FMSI- Friction Materials Standards Institute http://www.fmsi.org/FMSI/home/home.asp
  4. TomOstrowski

    383 TBI Chevy

    Here, I just ran across a link I had stored explaining a lot regarding TBI on 305cid sbCs(not quite your engine but the basics remain valid): http://www.goingfaster.com/spo/modthel03.html
  5. TomOstrowski

    Engine Torque Strap

    The heads I have are World's Sportsman IIs which feature tapped ancillary holes on both the front and rear faces of the heads. Luckily this allows me to use the rear of the head as an attachment point rather than having to work around the power steering unit located at the front. After...
  6. TomOstrowski

    Engine Torque Strap

    Is the consensus now that I should use components rated at around 2500-3000 lbs.(4-7x engine torque)? I have a limited amount of room to work with(about 8 inches- the distance from the cylinder head to the frame) and when I looked at turnbuckles and related parts at Home Depot I was disappointed...
  7. TomOstrowski

    383 TBI Chevy

    One of the most important areas of concern in a typical stroked 383 sbC is the camshaft. Most builders will choose a 6" rod which, due to improving dwell to an extent and optimizing the quench area(typically dished pistons are used with 6" rods), makes correct timing of exhaust gas evacuation...
  8. TomOstrowski

    Automotive engine oil systems

    While maybe not the exact answer you're looking for I've always read that a good safe(note I don't say optimum) oil pressure rate(which surely relates to your "flow rate") for V8 automobile engines(namely the smallblock Chevy) is 10 pounds of pressure for every 1K engine rpm.
  9. TomOstrowski

    Engine Torque Strap

    I should probably look into the shear strength of the mounting hardware(the grade-8 bolts) also, correct? Comments?
  10. TomOstrowski

    Engine Torque Strap

    I have a 360cid smallblock Chevy making approximately 400 lb. ft. of flywheel torque in an '84 C-10 1/2-ton pickup. I plan to add a torque strap consisting of grade-8 bolts(to the frame and cylinder head), small sections of chain and a turnbuckle. My question is this- how do I go about...
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