383 Engine Autopsy – Bad Build Investigated


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Nick has seen some incredible things, during his career building engines. But sometimes he just has to ask himself ‘What went wrong?’.
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44 Comments

  1. I've read that typical rebuilder pistons are machined .020 to .040 less than factory to account for block decking. I don't know about you but I've never seen a block needing that much cut off the deck! Usually .005 will do it,
    .010 at the most. My 400 pistons were. 052! below deck.

  2. Thanks Nick and George. I appreciate the work you do and the rest of your team. It's a pleasure tuning in to learn from you all. Thanks again from AZ Frank F.

  3. neat just stumbled on this channel. got a 383 someone swaped into my old travelette i rescued outa a feild anyhow lots to learn on caring for it

  4. The oil leak area was probably misidentified, hence the oil pan got resealed most likely with the Right Stuff. I seals quite well but is hell trying to re-open/remove.

  5. I am not an Engine builder in any way. I think as a untrained builder with the correct tools and manuals I would have built a better quality motor then the builder of the engine in this video did. I really like Fel-Pro gaskets and Gasket sets. I know I would have used the correct thinner head gaskets. I also would not silicone or glue the gasket. If I was using a Fel-Pro set I might not use any silicone. People or shops who do engine builds or rebuilds like this is why people like you Nick ar so important. Thank you for all that you do.

  6. check the runout on the crank at the seal surface it may have been droped and bent or been bent under a very hi load ….ie rev to max rpm and dump the clutch…some thing stupid like that

  7. Great 383 troubleshooting video, question, have you ever tested on a Dino the same motor with and without a wind age tray? Would love to see this comparison on this motor!!

  8. Nick, I install all my gaskets with wheel bearing grease. Disassembly is easy that way. I only use a dab of RTV in the 4 corners of the intake manifold china wall area.

  9. 9,999 people out of 10,000 don't care what my opinion is. Even my wife is in that majority. However, in my opinion the greatest benefit of running roller rockers on a street engine is the reduction of oil temperature. Just roller tips will decrease oil temp. If you only drive your car every 3rd Saturday to a static display within 10 miles of your garage then it doesn't matter. As far as that goes, if horsepower gain from using roller rockers is minimal but you don't drive the car anyway, who cares which style head gasket is used?

  10. use and old putty knife to remove the siliconed oil pan/gaskets. if you sharpen the sides some, you can drive it in then just hammer it all around, just don't make it so sharp it gouges the metal.

  11. a good way to help find leaks, is gently pressurize the whole crankcase with air, using something like a leak-down tester into the PCV/breather/dipstick and plug the other hole.
    just be sure to keep the pressure very low and the chances are great of air leaking and blowing bubbles in the process if oil is leaking out.

  12. It was great seeing you again at Motorama Nick. The Kowalski and the Hemi display was something to see for sure. And, I got to meet George. I was standing next to him for about a minute until I realized who it was. Great to meet George and have a chat. I'm hoping to get my Challenger to you in the fall for some work…hopefully. Keep up the great videos. Always look forward to seeing them. Hi to George.

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