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  1. Bill Crowell

    Persistent leaky valve cover on LA

    Original sheet metal factory valve covers, which are clean. Using the Moroso hold-downs. I really don't want to have to permatex the valve cover to the cylinder head, not only because it is redneck, but also because it is so hard to get the permatex off later when replacing the gasket, and...
  2. Bill Crowell

    My 360 dies at idle

    It's a factory stock 360 with a ThermoQuad that was running well until the other day, when it started dying at idle. It will idle OK for about a minute when you first start it up, but then it starts slowing down and eventually dies. In the past, when this engine would start running badly, I...
  3. Bill Crowell

    That MotorTrend Mopar vs. Ford 408 shoot-out was really biased

    I know this has been discussed before, but they deliberately crippled the Mopar motor's power output with a 170 cc-runner intake manifold! They agree that the Mopar motor would have produced a lot more power if it had been ported to 190 cc. intake runners like the Ford had. Freiberger says...
  4. Bill Crowell

    Suggestions for non-Magnum 360 that started running badly?

    One day I went to start up my '62 Valiant resto-rod with a non-Magnum 360, and it had a huge miss. Wouldn't idle. It will run if you hold the RPMs up, but still seems to have a miss. I've squirted carb cleaner into the idle jets and carb throat, with no improvement. Sure would appreciate it...
  5. Bill Crowell

    Why is my manifold vacuum so low?

    I've got a rebuilt LA 360 with stock 8.2:1 pistons due to smog compliance, but its "J" heads have been ported internally about as much as possible, as well as being match-ported to the Edelbrock Performer intake manifold. The cam is an MP P4452759 having an advertised 260 degrees of duration on...
  6. Bill Crowell

    Recurrent air leak at base of carburetor

    LA 360 (non-Magnum) with Edelbrock Performer intake and ThermoQuad. I'll tighten down the carb bolts but they seem to loosen up again, causing a random miss at idle and low RPM. This has happened twice now. Maybe it is some problem with the base gasket shrinking? Should I should use some...
  7. Bill Crowell

    Another "recommend a cylinder head?" thread!

    I know you guys are going to beat me on the noggin for asking this question again, but I'm a slow learner! I built my LA 360 with open-chamber "J" heads and too high a compression ratio (10.5:1), back when you could buy better gas, and now it detonates badly on 91 octane no matter what I do. I...
  8. Bill Crowell

    Would like to have your thoughts on this noise & oil pressure fluctuation

    When driving my Road Toad V8 conversion with a built 360 on the highway yesterday when it was hot (98°), the temperature gauge went to an almost-hot reading (still just within the normal range), which is not surprising because my cooling system consists of a bunch of mix-n-match parts and a...
  9. Bill Crowell

    Cam suggestions, please

    So I built a 360 LA with 10.5:1 static compression, heavily-ported "J" heads, Edelbrock Performer intake (match-ported) and a big ThermoQuad with a Torqueflite 727 and 2,200-stall converter. The cam is the Comp Cams hydraulic 20-243-4, the so-called "292" cam (236 degrees of duration at .050...
  10. Bill Crowell

    Can a rotating assembly using a non-counterweighted crankshaft be balanced?

    I have a question for moper, or for any of you other machinist-types: Can the rotating assembly in an engine that uses a non-counterweighted crankshaft (such as a Model T or a Dodge Bros. 4-cyl.) be balanced, or would that be impossible? Can it be statically balanced? Can it be dynamically...
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