1970 ‘Cuda 440 Engine Noise – What Went Wrong?


Nick’s Garage Gear Shop

————————————————————————–
Nick’s Garage Patreon page. Thanks for your support!

————————————————————————–
Nick’s Garage is on Instagram!
@nicksgarageofficial
————————————————————————–
Nick rebuilt the 440 Six Barrel for this beautiful 1970 ‘Cuda, but once he got it back in the car, a noise has started coming from the engine. Today, Nick will try and track down the issue so he can deliver another dream car.
————————————————————————–
Nick’s Garage is proud to be supported by Atlas And K Tool.

————————————————————————–

source

33 Comments

  1. Yeah it sounds like a valvetrain issue to me but it's really hard to hear over a video gotta get the wooden broom stick out and listen inside the engine to where it's coming from

  2. If that's a true 440-6 engine that valve train's special for that motor. A regular 440 rocker arm won't last. The cam, lifters, all of it was different than the regular 440. Even the fuel pump. Doubt it, look it up in a period parts book.

  3. Happy memorial day glad that everything is going smooth. I don't know if anyone has noticed or mentioned this to you. The microphones you guys are using are very sensitive and pickup a lot of unnecessary noise. Can you add more noise protection on the microphones to help make them a little less sensitive to the environmental noise around them. I only mention this to help no disrespect intended in anyway.

  4. When I was a kid we used to always build 440s and 383s. Usually a junkyard motor we bought for a hundred bucks. They really benefit from a windage tray. Especially if you're spinning donuts and figure eights. The oil gets frothy and you spin bearings. So don't spin too many donuts in a row. It's easy to over tach too, and you float lifters and bend pushrods which is hard on rockers, springs and keepers. You learn to respect machinery if you have to fix it. Treat it with respect.

  5. Has a bog when the 6 packs opens up. Engine shakes to much at idle. Something else is wrong like a lifter eating a can lobe. Time will tell. I have never seen a tick go away with the way the stock rocker arm looked. Nothing looked wrong with the stock rocker arm than the other one he put on. Of course we did not see were the pushrod sat in the rocker. I have seen when the pushrod breaks the rocker arm at were the pushrod goes into the rocker arm. No way you gona miss that unless you are blind.

  6. Mopar tin rockers,, try them on the shaft and see how oval the hole is. Then check the tips for being flat. And the pushrod cup for wear. Then throw half of them intothe scrap pile!!
    Normally I dont like chrome bumper cars with the bars painted, that one though looks trick. The only Mopar I would buy, Cuda or Challenger of that generation. Small block car though to make it handle ok
    Typical Mopar though with 2 sides to a front tyre

  7. I was sure that was going to be a worn cam lobe. I don't understand. The old rocker looked the same as the one you put in. I've taken rockers out of running but high mileage engines that had the hole for the shaft in them elongated oval about 3/8 of an inch and they weren't making noise. Presumably the lifter pumped up enough to take up the slack as it wore.
    What was wrong with the old rocker??
    PS, I've even seen small block rocker installed on a big block head… not all of them, just one. I think I even saw "left" and "right" rockers in the wrong places. And still no noise.

  8. Shimming works OK. But: Is it really necessary with hydraulic lifters? Also, why would anyone deck a block or mill heads to raise compression? It causes a cascade of problems while compression can be set to whatever you want for engines like these because there are plenty off off the shelf pistons and custom pistons are cheaper than compensation for the mismatches that result from milling heads and blocks.
    I don't think I would mill a block even to make it square. The machine shop guy that says it isn't square is just as likely to be wrong and cut it and them make crooked as he is to correct it.

  9. 1970 , same year of the Cuda and Challenger I was working part time at a Shell Station on Rte. 22 in N.J.. We used to get Chargers , Challengers and a Cuda in for a fill up. I miss my Newport , had to sell it last year due to health problems.

  10. Nick is just a fine wine. I just like to way he just methodically diagnosis a problem with patience and uses the many years of knowledge he ha attained over the years to tackle a problem. He just lives and breathes cars. Just one of the great engine builders . Thank you Nick for sharing your knowledge with us .
    Also great job to the entire crew at Nicks Shop.

  11. I have had the cam bearing that feeds oil to the top end turn a little bit and block the oil to the lifters and they will tick from experience it happened to me but I found it and fixed it lesson learned!

  12. Retired Driveabilty Mechanic. If you had killed each cylinder. You would have found out when taking off number 4 cylinder spark plug wire. The ticking would have gone away because u unloaded the cylinder.

Leave a Reply

Your email address will not be published. Required fields are marked *

© 2024 Grudge Races - GrudgeRaces.Com - WordPress Theme by WPEnjoy